Exhibit 4.2

EXECUTION COPY

MEDNAX, INC.

TO

U.S. BANK NATIONAL ASSOCIATION,

as Trustee

INDENTURE

Dated as of December 8, 2015

SENIOR DEBT SECURITIES

TABLE OF CONTENTS

(i)

(ii)

(iii)

Testimonium

Signatures and Seals

Acknowledgements

Exhibit A - Forms of Certification

Reconciliation and tie between Trust Indenture Act of 1939, as amended (the “ TIA ”), and Indenture, dated as of December 8, 2015.

(iv)

Note: This reconciliation and tie shall not, for any purpose, be deemed to be a part of the Indenture.

(v)

Attention should also be directed to Section 318(c) of the TIA, which provides that the provisions of Sections 310 to and including 317 of the TIA are a part of and govern every qualified indenture, whether or not physically contained therein.

(vi)

INDENTURE

INDENTURE , dated as of December 8, 2015, by and between MEDNAX, INC. , a Florida corporation (hereinafter called the “ Company ”), with a principal office at 1301 Concord Terrace, Sunrise, FL 33323, and U.S. BANK NATIONAL ASSOCIATION , a national banking association, as Trustee hereunder (hereinafter called the “ Trustee ”).

RECITALS OF THE COMPANY

The Company deems it necessary to issue from time to time for its lawful purposes senior debt securities (hereinafter called the “ Securities ”) evidencing its unsecured and unsubordinated indebtedness, and has duly authorized the execution and delivery of this Indenture to provide for the issuance from time to time of one or more series of the Securities, unlimited as to principal amount, to bear interest at the rates or formulas, to mature at such times and to have such other provisions as shall be fixed therefor as hereinafter provided.

This Indenture is subject to the provisions of the Trust Indenture Act of 1939, as amended, that are required to be part of this Indenture, and shall be governed by such provisions; provided that if any provision of this Indenture modifies any TIA (as defined herein) provision that may be so modified, such TIA provision shall be deemed to apply to this Indenture as so modified; provided further that if any provision of this Indenture excludes any TIA provision that may be so excluded, such TIA provision shall be excluded from this Indenture.

All things necessary to make this Indenture a valid agreement of the Company, in accordance with its terms, have been done.

NOW, THEREFORE, THIS INDENTURE WITNESSETH :

For and in consideration of the premises and the purchase of the Securities by the Holders (as defined herein) thereof, it is mutually covenanted and agreed, for the equal and proportionate benefit of all Holders of the Securities or a series thereof, or any Coupons (as defined herein), as follows:

ARTICLE ONE

DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

Section 101 Definitions.

For all purposes of this Indenture, except as otherwise expressly provided or the context otherwise requires:

(1) the terms defined in this Article have the meanings assigned to them in this Article, and include the plural as well as the singular;

(2) all other terms used herein which are defined in the Trust Indenture Act, either directly or by reference therein, have the meanings assigned to them therein, and the terms “ cash transaction ” and “ self-liquidating paper, ” as used in Trust Indenture Act Section 311, shall have the meanings assigned to them in the rules of the Commission adopted under the Trust Indenture Act;

1

(3) all accounting terms not otherwise defined herein have the meanings assigned to them in accordance with GAAP; and

(4) the words “ herein, ” “ hereof ” and “ hereunder ” and other words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subdivision.

Certain terms, used principally in Article Three, Article Five, Article Six and Article Ten, are defined in those Articles. In addition, the following terms shall have the indicated respective meanings:

“ Act ”, when used with respect to any Holder, has the meaning specified in Section 104.

“ Additional Amounts ” means any additional amounts which are required by a Security, under circumstances specified therein, to be paid by the Company in respect of certain taxes imposed on certain Holders and which are owing to such Holders.

“ Affiliate ” of any specified Person means any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For the purposes of this definition, “ control ” when used with respect to any specified Person means the power to direct the management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “ controlling ” and “ controlled ” have meanings correlative to the foregoing.

“ Authenticating Agent ” means any authenticating agent appointed by the Trustee to act on behalf of the Trustee pursuant to Section 611.

“ Authorized Newspaper ” means a newspaper, printed in the English language or in an official language of the country of publication, customarily published on each Business Day, whether or not published on Saturdays, Sundays or holidays, and of general circulation in each place in connection with which the term is used or in the financial community of each such place. Whenever successive publications are required to be made in Authorized Newspapers, the successive publications may be made in the same or in different Authorized Newspapers in the same city meeting the foregoing requirements and in each case on any Business Day.

“ Bankruptcy Law ” has the meaning specified in Section 501.

“ Bearer Security ” means a Security which is payable to bearer.

“ Board of Directors ” means (i) with respect to a corporation, the board of directors of the corporation (or any duly authorized committee thereof); (ii) with respect to a partnership, the Board of Directors (or any duly authorized committee thereof) of the general partner of the partnership; (iii) with respect to a limited liability company, the managing member or members or any controlling committee of managing members thereof; and (iv) with respect to any other Person, the board or committee of such Person serving a similar function.

2

“ Board Resolution ” means (i) a copy of a resolution certified by the Secretary or an Assistant Secretary or an Attorney-in-Fact of the Company to have been duly adopted by the Board of Directors or a committee thereof, and to be in full force and effect on the date of such certification, and delivered to the Trustee or (ii) a certificate signed by the authorized officer or officers or attorney-in-fact of the Company to whom the Board of Directors of the Company or a committee thereof has delegated its authority (as described in the definition of Board of Directors), and in each case, delivered to the Trustee.

“ Business Day ” when used with respect to any Place of Payment or any other particular location referred to in this Indenture or in the Securities, means, unless otherwise specified with respect to any Securities pursuant to Section 301, any day, other than a Saturday or Sunday, that is not (i) a legal holiday or a day on which banking institutions in that Place of Payment or particular location are authorized or required by law, regulation or executive order to close, or (ii) a day on which the Corporate Trust Office of the Trustee is closed for business.

“ Capital Stock ” means (i) in the case of a corporation, capital stock; (ii) in the case of an association or business entity, any and all shares, interests, participations, rights or other equivalents (however designated) of capital stock; (iii) in the case of a partnership or limited liability company, partnership interests (whether general or limited) or membership interests; and (iv) any other interest or participation that confers on a Person the right to receive a share of the profits and losses of, or distributions of assets of, the issuing Person including, without limitation, options, warrants and any other “equity security” as defined in Rule 3a11-1 of the Exchange Act.

“ Clearstream ” means Clearstream Banking, S.A., Luxembourg, or its successor.

“ Commission ” means the U.S. Securities and Exchange Commission, as from time to time constituted, created under the Exchange Act, or, if at any time after execution of this Indenture such Commission is not existing and performing the duties now assigned to it under the TIA, then the body performing such duties on such date.

“ Common Depository ” has the meaning specified in Section 304(b).

“ Company ” means the Person named as the “ Company ” in the first paragraph of this Indenture until a successor corporation shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “ Company ” shall mean such successor corporation.

“ Company Request ” and “ Company Order ” mean, respectively, a written request or order signed in the name of the Company by the Chief Executive Officer, President, Chief Operating Officer, Chief Financial Officer, a Vice President or Attorney-in-Fact of the Company, and by the Treasurer, an Assistant Treasurer, the Secretary, an Assistant Secretary or Attorney-in-Fact of the Company, and delivered to the Trustee.

“ Conversion Event ” means the cessation of use of (i) a Foreign Currency (other than the ECU or other currency unit) both by the government of the country which issued such currency and for the settlement of transactions by a central bank or other public institutions of or within the international banking community, (ii) the ECU both within the European Monetary System

3

and for the settlement of transactions by public institutions of or within the European Communities or (iii) any currency unit (or composite currency) other than the ECU for the purposes for which it was established.

“ Corporate Trust Office ” means the office of the Trustee at which at any time its corporate trust business shall be administered, which office at the date hereof is located at U.S. Bank National Association, 1349 West Peachtree Street; Suite 1050, Atlanta, Georgia 30309, or such other address as the Trustee may designate from time to time by notice to the Holders and the Company, or the principal corporate trust office of any successor Trustee (or such other address as such successor Trustee may designate from time to time by notice to the Holders and the Company).

“ corporation ” includes corporations, associations, companies and business or statutory trusts.

“ coupon ” means any interest coupon appertaining to a Bearer Security.

“ Custodian ” has the meaning specified in Section 501.

“ Defaulted Interest ” has the meaning specified in Section 307.

“ Dollar ” or “ $ ” means a dollar or other equivalent unit in such coin or currency of the United States of America as at the time shall be legal tender for payment of public and private debts.

“ DTC ” means The Depository Trust Company or any successor securities clearing agency.

“ ECU ” means the European Currency Unit as defined and revised from time to time by the Council of the European Communities.

“ Euroclear ” means Morgan Guaranty Trust Company of New York, Brussels Office, or its successor as operator of the Euroclear System.

“ European Communities ” means the European Economic Community, the European Coal and Steel Community and the European Atomic Energy Community.

“ European Monetary System ” means the European Monetary System established by the Resolution of December 5, 1978 of the Council of the European Communities.

“ Event of Default ” has the meaning specified in Section 501.

“ Exchange Act ” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

“ Exchange Date ” has the meaning specified in Section 304.

4

“ Foreign Currency ” means any currency, currency unit or composite currency, including, without limitation, the ECU, issued by the government of one or more countries other than the United States of America or by any recognized confederation or association of such governments, which currency shall be acceptable to the Trustee.

“ GAAP ” means generally accepted accounting principles as used in the United States applied on a consistent basis as in effect from time to time; provided that solely for purposes of any ratio calculation herein, “GAAP” shall mean generally accepted accounting principles as used in the United States on the date hereof, applied on a consistent basis.

“ Government Obligations ” means securities which are (i) direct obligations of the United States of America or the government which issued the Foreign Currency in which the Securities of a particular series are payable, for the payment of which its full faith and credit is pledged or (ii) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States of America or such government which issued the Foreign Currency in which the Securities of such series are payable, the payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America or such other government, which, in either case, are not callable or redeemable at the option of the issuer thereof, and shall also include a depository receipt issued by a bank or trust company as custodian with respect to any such Government Obligation or a specific payment of interest on or principal of any such Government Obligation held by such custodian for the account of the holder of a depository receipt, provided that (except as required by law) such custodian is not authorized to make any deduction from the amount payable to the holder of such depository receipt from any amount received by the custodian in respect of the Government Obligation or the specific payment of interest on or principal of the Government Obligation evidenced by such depository receipt.

“ Holder ” means, in the case of a Registered Security, the Person in whose name a Security is registered in the Security Register and, in the case of a Bearer Security, the bearer thereof and, when used with respect to any coupon, shall mean the bearer thereof.

“ Indenture ” means this instrument as originally executed or as it may from time to time be supplemented or amended by one or more indentures supplemental hereto entered into pursuant to the applicable provisions hereof, and shall include the terms of particular series of Securities established as contemplated by Section 301; provided, however, that, if at any time more than one Person is acting as Trustee under this instrument, “ Indenture ” shall mean, with respect to any one or more series of Securities for which such Person is Trustee, this instrument as originally executed or as it may from time to time be supplemented or amended by one or more indentures supplemental hereto entered into pursuant to the applicable provisions hereof and shall include the terms of the or those particular series of Securities for which such Person is Trustee established as contemplated by Section 301, exclusive, however, of any provisions or terms which relate solely to other series of Securities for which such Person is not Trustee, regardless of when such terms or provisions were adopted, and exclusive of any provisions or terms adopted by means of one or more indentures supplemental hereto executed and delivered after such Person had become such Trustee but to which such Person, as such Trustee, was not a party.

5

“ Indexed Security ” means a Security the terms of which provide that the principal amount thereof payable at Stated Maturity may be more or less than the principal face amount thereof at original issuance.

“ Interest ” when used with respect to an Original Issue Discount Security which by its terms bears interest only after Maturity, means interest payable after Maturity, and, when used with respect to a Security which provides for the payment of Additional Amounts pursuant to Section 1007, includes such Additional Amounts.

“ Interest Payment Date ” means, when used with respect to any Security, the Stated Maturity of an installment of interest on such Security.

“ Make-Whole Amount ” means the amount, if any, in addition to principal which is required by a Security, under the terms and conditions specified therein or as otherwise specified as contemplated by Section 301, to be paid by the Company to the Holder thereof in connection with any optional redemption or accelerated payment of such Security.

“ Maturity ” means, when used with respect to any Security, the date on which the principal of such Security or an installment of principal becomes due and payable as therein or herein provided, whether at the Stated Maturity or by declaration of acceleration, notice of redemption, notice of option to elect repayment, repurchase or otherwise.

“ Officers’ Certificate ” means a certificate signed by (i) the Chief Executive Officer, President, Chief Operating Officer, Chief Financial Officer, a Vice President or Attorney-in-Fact and (ii) the Treasurer, an Assistant Treasurer, the Secretary, an Assistant Secretary or Attorney-in-Fact (without duplication of clause (i)), of the Company, delivered to the Trustee and meeting the requirements of Section 102, to the extent applicable.

“ Opinion of Counsel ” means a written opinion of counsel, who may be an employee of or counsel for the Company or other counsel satisfactory to the Trustee and meeting the requirements of Section 102, to the extent applicable.

“ Original Issue Discount Security ” means any Security which provides for an amount less than the principal amount thereof to be due and payable upon a declaration of acceleration of the Maturity thereof pursuant to Section 502.

“ Outstanding ” when used with respect to Securities, means, as of the date of determination, all Securities theretofore authenticated and delivered under this Indenture, except:

(i) Securities theretofore canceled by the Trustee or delivered to the Trustee for cancellation;

(ii) Securities, or portions thereof, for whose payment or redemption or repayment at the option of the Holder money in the necessary amount has been

6

theretofore deposited with the Trustee or any Paying Agent (other than the Company) in trust or set aside and segregated in trust by the Company (if the Company shall act as its own Paying Agent) for the Holders of such Securities and any coupons appertaining thereto; provided that, if such Securities are to be redeemed, notice of such redemption has been duly given pursuant to this Indenture or other provision therefor satisfactory to the Trustee has been made;

(iii) Securities, except solely to the extent provided in Section 1402 or Section 1403, as applicable, with respect to which the Company has effected defeasance and/or covenant defeasance as provided in Article Fourteen;

(iv) Securities which have been paid pursuant to Section 306 or in exchange for or in lieu of which other Securities have been authenticated and delivered pursuant to this Indenture, other than any such Securities in respect of which there shall have been presented to the Trustee proof satisfactory to it that such Securities are held by a bona fide purchaser in whose hands such Securities are valid obligations of the Company; and

(v) Securities that have been converted into Capital Stock of the Company pursuant to or in accordance with this Indenture if the terms of such Securities provide for convertibility pursuant to Section 301;

provided, however, that in determining whether the Holders of the requisite principal amount of the Outstanding Securities have given any request, demand, authorization, direction, notice, consent or waiver hereunder or are present at a meeting of Holders for quorum purposes, and for the purpose of making the calculations required by TIA Section 313, (A) the principal amount of an Original Issue Discount Security that may be counted in making such determination or calculation and that shall be deemed to be Outstanding for such purpose shall be equal to the amount of principal thereof that would be (or shall have been declared to be) due and payable, at the time of such determination, upon a declaration of acceleration of the Maturity thereof pursuant to Section 502, (B) the principal amount of any Security denominated in a Foreign Currency that may be counted in making such determination or calculation and that shall be deemed Outstanding for such purpose shall be equal to the Dollar equivalent, determined pursuant to Section 301 as of the date such Security is originally issued by the Company, of the principal amount (or, in the case of an Original Issue Discount Security, the Dollar equivalent as of such date of original issuance of the amount determined as provided in clause (A) above) of such Security, (C) the principal amount of any Indexed Security that may be counted in making such determination or calculation and that shall be deemed Outstanding for such purpose shall be equal to the principal face amount of such Indexed Security at original issuance, unless otherwise provided with respect to such Indexed Security pursuant to Section 301, and (D) Securities owned by the Company or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor shall be disregarded and deemed not to be Outstanding, except that, in determining whether the Trustee shall be protected in making such calculation or in relying upon any such request, demand, authorization, direction, notice, consent or waiver, only Securities which a Responsible Officer of the Trustee knows to be so owned shall be so disregarded. Securities so owned which have been pledged in good faith may be regarded as Outstanding if the pledgee establishes to the satisfaction of the Trustee the pledgee’s right so to act with respect to such Securities and that the pledgee is not the Company or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor. Upon the written request of

7

the Trustee, the Company shall furnish to the Trustee promptly an Officers’ Certificate listing and identifying all Securities, if any, known by the Company to be owned by, held by or for the account of the Company, or any other obligor on the Securities or any Affiliate of the Company or such obligor, and subject to the provisions of Section 602, the Trustee shall be entitled to accept such Officers’ Certificate as conclusive evidence of the facts therein set forth and of the fact that all Securities not listed therein are Outstanding for the purpose of any such determination.

“ Paying Agent ” means any Person authorized by the Company to pay the principal of (and premium or Make-Whole Amount, if any) or interest, if any, on any Securities, or coupons on behalf of the Company, or if no such Person is authorized, the Company.

“ Person ” means any individual, corporation, partnership, joint venture, association, joint-stock company, trust, unincorporated organization, limited liability company or government or other entity.

“ Place of Payment ” means, when used with respect to the Securities of or within any series, the place or places (which, in the case of Bearer Securities, shall be outside the United States) where the principal of (and premium or Make-Whole Amount, if any) and interest on such Securities are payable as specified as contemplated by Section 301 and Section 1002.

“ Predecessor Security ” of any particular Security means every previous Security evidencing all or a portion of the same debt as that evidenced by such particular Security; and, for the purposes of this definition, any Security authenticated and delivered under Section 306 in exchange for or in lieu of a mutilated, destroyed, lost or stolen Security or a Security to which a mutilated, destroyed, lost or stolen coupon appertains shall be deemed to evidence the same debt as the mutilated, destroyed, lost or stolen Security or the Security to which the mutilated, destroyed, lost or stolen coupon appertains.

“ Redemption Date ” means, when used with respect to any Security to be redeemed in whole or in part, the date fixed for such redemption by or pursuant to this Indenture.

“ Redemption Price ” means, when used with respect to any Security to be redeemed, the price at which it is to be redeemed pursuant to this Indenture.

“ Registered Security ” means any Security which is registered in the Security Register.

“ Regular Record Date ” for the installment of interest payable on any Interest Payment Date on the Registered Securities of or within any series means the date specified for that purpose as contemplated by Section 301, whether or not a Business Day.

“ Repayment Date ” means, when used with respect to any Security to be repaid or repurchased at the option of the Holder, the date fixed for such repayment or repurchase by or pursuant to this Indenture.

“ Responsible Officer ” means, when used with respect to the Trustee, any officer within the corporate trust department of the Trustee (or any successor of the Trustee), including any

8

vice president, assistant vice president, assistant secretary, assistant treasurer, trust officer or any other officer of the Trustee who customarily performs functions similar to those performed by the Persons who at the time shall be such officers, respectively, or to whom any corporate trust matter is referred because of such person’s knowledge of and familiarity with the particular subject and who shall have direct responsibility for the administration of this Indenture.

“ Securities Act ” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder by the Commission.

“ Security ” has the meaning stated in the first recital of this Indenture and, more particularly, means any Security or Securities authenticated and delivered under this Indenture; provided, however, that if at any time there is more than one Person acting as Trustee under this Indenture, “ Securities ” with respect to the Indenture as to which such Person is Trustee shall have the meaning stated in the first recital of this Indenture and shall more particularly mean Securities authenticated and delivered under this Indenture, exclusive, however, of Securities of or within any series as to which such Person is not Trustee.

“ Security Register ” and “ Security Registrar ” have the respective meanings specified in Section 305.

“ Significant Subsidiary ” means any Subsidiary which is a “ significant subsidiary ” (within the meaning of Regulation S-X, promulgated under the Securities Act) of the Company.

“ Special Record Date ” for the payment of any Defaulted Interest on the Registered Securities of or within any series means a date fixed by the Trustee pursuant to Section 307.

“ Stated Maturity ” means, when used with respect to any Security or any installment of principal thereof or interest thereon, the date specified in such Security or a coupon representing such installment of interest as the fixed date on which the principal of such Security or such installment of principal or interest is due and payable.

“ Subsidiary ” means, with respect to any Person, any corporation or other entity of which a majority of (i) the voting power of the voting equity securities or (ii) the outstanding equity interests of which are owned, directly or indirectly, by such Person. For the purposes of this definition, “ voting equity securities ” means equity securities having voting power for the election of directors, whether at all times or only so long as no senior class of security has such voting power by reason of any contingency.

“ Trust Indenture Act ” or “ TIA ” means the U.S. Trust Indenture Act of 1939, as amended and as in force at the date as of which this Indenture was executed, except as provided in Section 905.

“ Trustee ” means the Person named as the “ Trustee ” in the first paragraph of this Indenture until a successor Trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “ Trustee ” shall mean or include each Person who is then a Trustee hereunder; provided, however, that if at any time there is more than one such Person, “ Trustee ” as used with respect to the Securities of or within any series shall mean only the Trustee with respect to the Securities of that series.

9

“ United States ” means, unless otherwise specified with respect to any Securities pursuant to Section 301, the United States of America (including the states and the District of Columbia), its territories, its possessions and other areas subject to its jurisdiction.

“ United States person ” means, unless otherwise specified with respect to any Securities pursuant to Section 301, an individual who is a citizen or resident of the United States, a corporation, partnership or other entity created or organized in or under the laws of the United States or of any state or the District of Columbia or an estate or trust the income of which is subject to United States federal income taxation regardless of its source.

“ Yield to Maturity ” means the yield to maturity, computed at the time of issuance of a Security (or, if applicable, at the most recent predetermination of interest on such Security) and as set forth in such Security in accordance with generally accepted United States bond yield computation principles.

Section 102 Compliance Certificates and Opinions.

Upon any application or request by the Company to the Trustee to take any action under any provision of this Indenture, the Company shall furnish to the Trustee an Officers’ Certificate stating that all conditions precedent, if any, provided for in this Indenture (including covenants, compliance with which constitute conditions precedent) relating to the proposed action have been complied with and an Opinion of Counsel stating that in the opinion of such counsel all such conditions precedent, if any, have been complied with, except that in the case of any such application or request as to which the furnishing of such documents is specifically required by any provision of this Indenture relating to such particular application or request, no additional certificate or opinion need be furnished.

Every certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture (excluding certificates delivered pursuant to Section 1006) shall include:

(1) a statement that each individual signing such certificate or opinion has read such condition or covenant and the definitions herein relating thereto;

(2) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based;

(3) a statement that, in the opinion of each such individual, he has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not such condition or covenant has been complied with; and

(4) a statement as to whether, in the opinion of each such individual, such condition or covenant has been complied with.

10

Section 103 Form of Documents Delivered to Trustee.

In any case where several matters are required to be certified by, or covered by an opinion of, any specified Person, it is not necessary that all such matters be certified by, or covered by the opinion of, only one such Person, or that they be so certified or covered by only one document, but one such Person may certify or give an opinion as to some matters and one or more other such Persons as to other matters, and any such Person may certify or give an opinion as to such matters in one or several documents.

Any certificate or opinion of an officer of the Company may be based, insofar as it relates to legal matters, upon an Opinion of Counsel, or a certificate or representations by counsel, unless such officer knows, or in the exercise of reasonable care should know, that the opinion, certificate or representations with respect to the matters upon which his certificate or opinion is based are erroneous. Any such Opinion of Counsel or certificate or representations may be based, insofar as it relates to factual matters, upon a certificate or opinion of, or representations by, an officer or officers of the Company stating that the information as to such factual matters is in the possession of the Company, unless such counsel knows that the certificate or opinion or representations as to such matters are erroneous.

Where any Person is required to make, give or execute two or more applications, requests, consents, certificates, statements, opinions or other instruments under this Indenture, they may, but need not, be consolidated and form one instrument.

Section 104 Acts of Holders.

(a) Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be given or taken by Holders of the Outstanding Securities of all series or one or more series, as the case may be, may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Holders in person or by agents duly appointed in writing. If Securities of a series are issuable as Bearer Securities, any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be given or taken by Holders of Securities of such series may, alternatively, be embodied in and evidenced by the record of Holders of Securities of such series voting in favor thereof, whether in person or by proxies duly appointed in writing, at any meeting of Holders of Securities of such series duly called and held in accordance with the provisions of Article Fifteen, or a combination of such instruments and any such record. Except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments or record or both are delivered to the Trustee and, where it is hereby expressly required, to the Company. Such instrument or instruments and any such record (and the action embodied therein and evidenced thereby) are herein sometimes referred to as the “ Act ” of the Holders signing such instrument or instruments or so voting at any such meeting. Proof of execution of any such instrument or of a writing appointing any such agent, or of the holding by any Person of a Security, shall be sufficient for any purpose of this Indenture and conclusive in favor of the Trustee and the Company and any agent of the Trustee or the Company, if made in the manner provided in this Section. The record of any meeting of Holders of Securities shall be proved in the manner provided in Section 1506.

11

(b) The fact and date of the execution by any Person of any such instrument or writing may be proved by the affidavit of a witness of such execution or by a certificate of a notary public or other officer authorized by law to take acknowledgments of deeds, certifying that the individual signing such instrument or writing acknowledged to him the execution thereof. Where such execution is by a signer acting in a capacity other than his individual capacity, such certificate or affidavit shall also constitute sufficient proof of his authority. The fact and date of the execution of any such instrument or writing, or the authority of the Person executing the same, may also be proved in any other reasonable manner which the Trustee deems sufficient.

(c) The ownership of Registered Securities shall be proved by the Security Register or by a certificate of the Security Registrar.

(d) The ownership of Bearer Securities may be proved by the production of such Bearer Securities or by a certificate executed, as depository, by any trust company, bank, banker or other depository, wherever situated, if such certificate shall be deemed by the Trustee to be satisfactory, showing that at the date therein mentioned such person had on deposit with such depository, or exhibited to it, the Bearer Securities therein described; or such facts may be proved by the certificate or affidavit of the Person holding such Bearer Securities, if such certificate or affidavit is deemed by the Trustee to be satisfactory. The Trustee and the Company may assume that such ownership of any Bearer Security continues until (1) another certificate or affidavit bearing a later date issued in respect of the same Bearer Security is produced, or (2) such Bearer Security is produced to the Trustee by some other Person, or (3) such Bearer Security is surrendered in exchange for a Registered Security, or (4) such Bearer Security is no longer Outstanding. The ownership of Bearer Securities may also be proved in any other manner which the Trustee deems sufficient.

(e) If the Company shall solicit from the Holders of Registered Securities any request, demand, authorization, direction, notice, consent, waiver or other Act, the Company may, at its option, in or pursuant to a Board Resolution, fix in advance a record date for the determination of Holders entitled to give such request, demand, authorization, direction, notice, consent, waiver or other Act, but the Company shall have no obligation to do so. Notwithstanding TIA Section 316(c), such record date shall be the record date specified in or pursuant to such Board Resolution, which shall be a date not earlier than the date 30 days prior to the first solicitation of Holders generally in connection therewith and not later than the date such solicitation is completed. If such a record date is fixed, such request, demand, authorization, direction, notice, consent, waiver or other Act may be given before or after such record date, but only the Holders of record at the close of business on such record date shall be deemed to be Holders for the purposes of determining whether Holders of the requisite proportion of Outstanding Securities have authorized or agreed or consented to such request, demand, authorization, direction, notice, consent, waiver or other Act, and for that purpose the Outstanding Securities shall be computed as of such record date; provided that no such authorization, agreement or consent by the Holders on such record date shall be deemed effective unless it shall become effective pursuant to the provisions of this Indenture not later than eleven months after the record date.

12

(f) Any request, demand, authorization, direction, notice, consent, waiver or other Act of the Holder of any Security shall bind every future Holder of the same Security and the Holder of every Security issued upon the registration of transfer thereof or in exchange therefor or in lieu thereof in respect of anything done, omitted or suffered to be done by the Trustee, any Security Registrar, any Paying Agent, any Authenticating Agent or the Company in reliance thereon, whether or not notation of such Act is made upon such Security.

Section 105 Notices, etc., to the Trustee and Company.

Any request, demand, authorization, direction, notice, consent, waiver or Act of Holders or other document provided or permitted by this Indenture to be made upon, given or furnished to or filed with,

(1) the Trustee by any Holder or by the Company shall be sufficient for every purpose hereunder if made, given, furnished or filed in writing to or with the Trustee at its Corporate Trust Office, or

(2) the Company by the Trustee or by any Holder shall be sufficient for every purpose hereunder (unless otherwise herein expressly provided) if in writing and mailed, first-class postage prepaid, to the Company addressed to it at the address of its principal office specified in the first paragraph of this Indenture or at any other address previously furnished in writing to the Trustee by the Company.

Section 106 Notice to Holders; Waiver.

Where this Indenture provides for notice of any event to Holders of Registered Securities by the Company or the Trustee, such notice shall be sufficiently given (unless otherwise herein expressly provided or otherwise specified with respect to any series of Securities pursuant to Section 301) if in writing and mailed, first-class postage prepaid, to each such Holder affected by such event, at his address as it appears in the Security Register, not later than the latest date, and not earlier than the earliest date, prescribed for the giving of such notice. In any case where notice to Holders of Registered Securities is given by mail, neither the failure to mail such notice, nor any defect in any notice so mailed, to any particular Holder shall affect the sufficiency of such notice with respect to other Holders of Registered Securities or the sufficiency of any notice to Holders of Bearer Securities given as provided herein. Any notice mailed to a Holder in the manner herein prescribed shall be conclusively deemed to have been received by such Holder, whether or not such Holder actually receives such notice.

If by reason of the suspension of or irregularities in regular mail service or by reason of any other cause it shall be impracticable to give such notice by mail, then such notification to Holders of Registered Securities as shall be made with the approval of the Trustee shall constitute a sufficient notification to such Holders for every purpose hereunder.

Except as otherwise expressly provided herein or otherwise specified with respect to any series of Securities pursuant to Section 301, where this Indenture provides for notice to Holders of Bearer Securities of any event, such notice shall be sufficiently given if published in an Authorized Newspaper in The City of New York and in such other city or cities as may be

13

specified in such Securities, and if the Securities of such series are listed on any stock exchange outside the United States, in any place at which such Securities are listed on a securities exchange to the extent that such securities exchange so requires, on a Business Day, such publication to be not later than the latest date, and not earlier than the earliest date, prescribed for the giving of such notice. Any such notice shall be deemed to have been given on the date of such publication or, if published more than once, on the date of the first such publication.

If by reason of the suspension of publication of any Authorized Newspaper or Authorized Newspapers or by reason of any other cause it shall be impracticable to publish any notice to Holders of Bearer Securities as provided above, then such notification to Holders of Bearer Securities as shall be given with the approval of the Trustee shall constitute sufficient notice to such Holders for every purpose hereunder. Neither the failure to give notice by publication to any particular Holder of Bearer Securities as provided above, nor any defect in any notice so published, shall affect the sufficiency of such notice with respect to other Holders of Bearer Securities or the sufficiency of any notice to Holders of Registered Securities given as provided herein.

Any request, demand, authorization, direction, notice, consent or waiver required or permitted under this Indenture shall be in the English language, except that any published notice may be in an official language of the country of publication.

Where this Indenture provides for notice in any manner, such notice may be waived in writing by the Person entitled to receive such notice, either before or after the event, and such waiver shall be the equivalent of such notice. Waivers of notice by Holders shall be filed with the Trustee, but such filing shall not be a condition precedent to the validity of any action taken in reliance upon such waiver.

Section 107 Effect of Headings and Table of Contents.

The Article and Section headings herein and the Table of Contents are for convenience only and shall not affect the construction hereof.

Section 108 Successors and Assigns.

All covenants and agreements in this Indenture by the Company shall bind its successors and assigns, whether so expressed or not.

Section 109 Separability Clause.

In case any provision in this Indenture or in any Security or coupon shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

Section 110 Benefits of Indenture.

Nothing in this Indenture or in the Securities or coupons appertaining thereto, express or implied, shall give to any Person, other than the parties hereto, any Security Registrar, any Paying Agent, any Authenticating Agent and their successors hereunder and the Holders any benefit or any legal or equitable right, remedy or claim under this Indenture.

14

Section 111 No Personal Liability.

No recourse under or upon any obligation, covenant or agreement contained in this Indenture or any supplemental indenture, in any Security or coupon appertaining thereto, or because of any indebtedness evidenced thereby, shall be had against any promoter, as such, or against any past, present or future shareholder, officer, director or employee, as such, of the Company or of any successor, either directly or through the Company or any successor, under any rule of law, statute or constitutional provision or by the enforcement of any assessment or by any legal or equitable proceeding or otherwise, all such liability being expressly waived and released by the acceptance of the Securities by the Holders thereof and as part of the consideration for the execution of this Indenture and the issue of the Securities.

Section 112 Governing Law.

This Indenture and the Securities and coupons shall be governed by and construed in accordance with the laws of the State of New York without regard to conflict of laws principles of such state other than New York General Obligations Law Section 5-1401. This Indenture is subject to the provisions of the TIA that are required to be part of this Indenture and shall, to the extent applicable, be governed by such provisions.

Section 113 Legal Holidays.

In any case where any Interest Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated Maturity or Maturity of any Security shall not be a Business Day at any Place of Payment, then (notwithstanding any other provision of this Indenture or any Security or coupon other than a provision in the Securities of any series which specifically states that such provision shall apply in lieu hereof), payment of interest, if any, or any Additional Amounts or principal (and premium or Make-Whole Amount, if any) need not be made at such Place of Payment on such date, but may be made on the next succeeding Business Day at such Place of Payment with the same force and effect as if made on such Interest Payment Date, Redemption Date, Repayment Date or sinking fund payment date, or at the Stated Maturity or Maturity, as the case may be, provided that no interest shall accrue on the amount so payable for the period from and after such Interest Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated Maturity or Maturity, as the case may be, to such next succeeding Business Day.

Section 114 Waiver of Jury Trial.

EACH OF THE COMPANY AND THE TRUSTEE HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTION CONTEMPLATED HEREBY.

15

Section 115 Counterparts.

This Indenture may be executed and delivered in any number of counterparts, each of which when so executed and delivered shall be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument.

Section 116 Force Majeure.

In no event shall the Trustee be responsible or liable for any failure or delay in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities, communications or computer (software and hardware) services; it being understood that the Trustee shall use reasonable efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable under the circumstances.

ARTICLE TWO

SECURITIES FORMS

Section 201 Forms of Securities.

The Registered Securities, if any, of each series and the Bearer Securities, if any, and related coupons of each series, shall be in substantially the forms as shall be established in or pursuant to one or more indentures supplemental hereto or Board Resolutions, shall have such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Indenture or any indenture supplemental hereto, and may have such letters, numbers or other marks of identification or designation and such legends or endorsements placed thereon as the Company may deem appropriate and as are not inconsistent with the provisions of this Indenture, or as may be required to comply with any law or with any rule or regulation made pursuant thereto or with any rule or regulation of any stock exchange on which the Securities may be listed, or to conform to usage.

Unless otherwise specified as contemplated by Section 301, Bearer Securities shall have interest coupons attached.

The definitive Securities and coupons shall be printed, lithographed or engraved or produced by any combination of these methods on a steel engraved border or steel engraved borders or may be produced in any other manner, all as determined by the officers of the Company executing such Securities or coupons, as evidenced by their execution of such Securities or coupons.

16

Section 202 Form of Trustee’s Certificate of Authentication.

Subject to Section 611, the Trustee’s certificate of authentication shall be in substantially the following form:

This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture.

Section 203 Securities Issuable in Global Form.

If Securities of or within a series are issuable in global form, as specified as contemplated by Section 301, then, notwithstanding clause (8) of Section 301 and the provisions of Section 302, any such Security shall represent such of the Outstanding Securities of such series as shall be specified therein and may provide that it shall represent the aggregate amount of Outstanding Securities of such series from time to time endorsed thereon and that the aggregate amount of Outstanding Securities of such series represented thereby may from time to time be increased or decreased to reflect exchanges. Any endorsement of a Security in global form to reflect the amount, or any increase or decrease in the amount, of Outstanding Securities represented thereby shall be made by the Trustee in such manner and upon written instruction given by such Person or Persons as shall be specified therein or in the Company Order to be delivered to the Trustee pursuant to Section 303 or Section 304. Subject to the provisions of Section 303 and, if applicable, Section 304, the Trustee shall deliver and redeliver any Security in permanent global form in the manner and upon instructions given by the Person or Persons specified therein or in the applicable Company Order. If a Company Order pursuant to Section 303 or Section 304 has been, or simultaneously is, delivered, any instructions by the Company with respect to endorsement or delivery or redelivery of a Security in global form shall be in writing but need not comply with Section 102 and need not be accompanied by an Opinion of Counsel.

The provisions of the last sentence of Section 303 shall apply to any Security represented by a Security in global form if such Security was never issued and sold by the Company and the Company delivers to the Trustee the Security in global form together with written instructions (which need not comply with Section 102 and need not be accompanied by an Opinion of Counsel) with regard to the reduction in the principal amount of Securities represented thereby, together with the written statement contemplated by the last sentence of Section 303.

Notwithstanding any provision of Section 307, unless otherwise specified as contemplated by Section 301, payment of principal of and any premium or Make-Whole Amount and interest, if any, on any Security in permanent global form shall be made to the Person or Persons specified therein.

Notwithstanding the provisions of Section 308 and except as provided in the preceding paragraph, the Company, the Trustee and any agent of the Company and the Trustee shall treat as the Holder of such principal amount of Outstanding Securities represented by a permanent global Security (i) in the case of a permanent global Security in registered form, the Holder of such permanent global Security in registered form, or (ii) in the case of a permanent global Security in bearer form, Euroclear or Clearstream.

17

Section 204 CUSIP, CINS or ISIN Numbers.

The Company in issuing any series of Securities may use “CUSIP”, “CINS” or “ISIN” numbers (if then generally in use), and, if so, the Trustee shall use “CUSIP”, “CINS” or “ISIN” numbers in notices as a convenience to Holders; provided that any such notice may state that no representation is made as to the correctness of such numbers either as printed on such Securities or as contained in any notice and that reliance may be placed only on the other identification numbers printed on such Securities, and any such action relating to such notice shall not be affected by any defect in or omission of such numbers in such notice. The Company shall promptly notify the Trustee, in writing, of any change in the “CUSIP”, “CINS” or “ISIN” numbers.

ARTICLE THREE

THE SECURITIES

Section 301 Amount Unlimited; Issuable in Series.

The aggregate principal amount of Securities which may be authenticated and delivered under this Indenture is unlimited.

The Securities may be issued in one or more series. There shall be established in or pursuant to authority granted by one or more Board Resolutions, and, subject to Section 303, set forth in, or determined in the manner provided in, an Officers’ Certificate, or established in one or more indentures supplemental hereto, prior to the issuance of Securities of any series, any or all of the following, as applicable (each of which (except for the matters set forth in clauses (1), (2) and (15) below), if so provided, may be determined from time to time by the Company with respect to unissued Securities of or within the series when issued from time to time):

(1) the title of the Securities of or within the series (which shall distinguish the Securities of such series from all other series of Securities);

(2) any limit upon the aggregate principal amount of the Securities of or within the series that may be authenticated and delivered under this Indenture (except for Securities authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Securities of or within the series pursuant to Section 304, Section 305, Section 306, Section 906, Section 1107, or Section 1305);

(3) the date or dates, or the method by which such date or dates will be determined, on which the principal of the Securities of or within the series shall be payable and the amount of principal payable thereon;

(4) the rate or rates (which may be fixed or variable) at which the Securities of or within the series shall bear interest, if any, or the method by which such rate or rates shall be determined, the date or dates from which any such interest shall accrue or the method by which

18

such date or dates shall be determined, the Interest Payment Dates on which such interest will be payable and the Regular Record Date, if any, for the interest payable on any Registered Security on any Interest Payment Date, or the method by which such date shall be determined, and the basis upon which interest shall be calculated if other than that of a 360-day year consisting of twelve 30-day months;

(5) the place or places, if any, other than or in addition to the Borough of Manhattan, The City of New York, where the principal of (and premium or Make-Whole Amount, if any), interest, if any, on, and Additional Amounts, if any, payable in respect of, Securities of or within the series shall be payable (which, in the case of Bearer Securities, shall be payable outside the United States), where, any Registered Securities of or within the series may be surrendered for registration of transfer, exchange or conversion and notices or demands to or upon the Company in respect of the Securities of or within the series and this Indenture may be served;

(6) the period or periods within which, the price or prices (including the premium or Make-Whole Amount, if any) at which, the currency or currencies, currency unit or units or composite currency or currencies (each of which currency shall be acceptable to the Trustee) in which and other terms and conditions upon which Securities of or within the series may be redeemed in whole or in part, at the option of the Company, if the Company is to have the option;

(7) the obligation, if any, of the Company to redeem, repay or purchase Securities of or within the series pursuant to any sinking fund or analogous provision or at the option of a Holder thereof, and the period or periods within which or the date or dates on which, the price or prices at which, the currency or currencies, currency unit or units or composite currency or currencies (each of which currency shall be acceptable to the Trustee) in which, and other terms and conditions upon which Securities of or within the series shall be redeemed, repaid or purchased, in whole or in part, pursuant to such obligation;

(8) if other than denominations of $1,000 and any integral multiple thereof, the denominations in which any Registered Securities of or within the series shall be issuable and, if other than the denomination of $5,000, the denomination or denominations in which any Bearer Securities of or within the series shall be issuable;

(9) if other than the Trustee, the identity of each Security Registrar and/or Paying Agent;

(10) if other than the principal amount thereof, the portion of the principal amount of Securities of or within the series that shall be payable upon declaration of acceleration of the Maturity thereof pursuant to Section 502 or, if applicable, the portion of the principal amount of Securities of or within the series that is convertible in accordance with the provisions of this Indenture, or the method by which such portion shall be determined;

(11) if other than Dollars, the Foreign Currency or Currencies in which payment of the principal of (and premium or Make-Whole Amount, if any) or interest, if any, or Additional Amounts, if any, on the Securities of or within the series shall be payable or in which the Securities of or within the series shall be denominated, each of which Foreign Currencies shall be acceptable to the Trustee;

19

(12) whether the amount of payments of principal of (and premium or Make-Whole Amount, if any) or interest, if any, on the Securities of or within the series may be determined with reference to an index, formula or other method (which index, formula or method may be based, without limitation, on one or more currencies, currency units, composite currencies, commodities, equity indices or other indices), and the manner in which such amounts shall be determined;

(13) whether the principal of (and premium or Make Whole Amount, if any) or interest, if any, or Additional Amounts, if any, on the Securities of or within the series are to be payable, at the election of the Company or a Holder thereof, in a currency or currencies, currency unit or units or composite currency or currencies (each of which currency shall be acceptable to the Trustee) other than that in which such Securities are denominated or stated to be payable, the period or periods within which, and the terms and conditions upon which, such election may be made, and the time and manner of, and identity of the exchange rate agent with responsibility for, determining the exchange rate between the currency or currencies, currency unit or units or composite currency or currencies in which such Securities are denominated or stated to be payable and the currency or currencies, currency unit or units or composite currency or currencies in which such Securities are to be so payable;

(14) the designation of the initial exchange rate agent, if any, or any depositaries;

(15) provisions, if any, granting special rights to the Holders of Securities of or within the series upon the occurrence of such events as may be specified;

(16) any deletions from, modifications of or additions to the Events of Default or covenants of the Company with respect to Securities of or within the series, whether or not such Events of Default or covenants are consistent with the Events of Default or covenants set forth herein;

(17) whether Securities of or within the series are to be issuable as Registered Securities, Bearer Securities (with or without coupons) or both, any restrictions applicable to the offer, sale or delivery of Bearer Securities and the terms upon which Bearer Securities of or within the series may be exchanged for Registered Securities of or within the series and vice versa (if permitted by applicable laws and regulations), whether any Securities of or within the series are to be issuable initially in temporary global form and whether any Securities of or within the series are to be issuable in permanent global form (with or without coupons) and, if so, whether beneficial owners of interests in any such permanent global Security may exchange such interests for Securities of such series and of like tenor of any authorized form and denomination and the circumstances under which any such exchanges may occur, if other than in the manner provided in Section 305, and, if Registered Securities of or within the series are to be issuable as a global Security, the identity of the depository for such series;

20

(18) the date as of which any Bearer Securities of or within the series and any temporary global Security representing Outstanding Securities of or within the series shall be dated if other than the date of original issuance of the first Security of the series to be issued;

(19) the Person to whom any interest on any Registered Security of the series shall be payable, if other than the Person in whose name that Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, the manner in which, or the Person to whom, any interest on any Bearer Security of the series shall be payable, if otherwise than upon presentation and surrender of the coupons appertaining thereto as they severally mature, and the extent to which, or the manner in which, any interest payable on a temporary global Security on an Interest Payment Date will be paid if other than in the manner provided in Section 304;

(20) the applicability, if any, of Section 1402 and/or Section 1403 to the Securities of or within the series and any provisions in modification of, in addition to or in lieu of any of the provisions of Article Fourteen;

(21) if the Securities of such series are to be issuable in definitive form (whether upon original issue or upon exchange of a temporary Security of such series) only upon receipt of certain certificates or other documents or satisfaction of other conditions, then the form and/or terms of such certificates, documents or conditions;

(22) if the Securities of or within the series are to be issued upon the exercise of debt warrants, the time, manner and place for such Securities to be authenticated and delivered;

(23) whether and under what circumstances the Company will pay Additional Amounts as contemplated by Section 1007 on the Securities of or within the series to any Holder who is not a United States person (including any modification to the definition of such term) in respect of any tax, assessment or governmental charge and, if so, whether the Company will have the option to redeem such Securities rather than pay such Additional Amounts (and the terms of any such option);

(24) the obligation, if any, of the Company to permit the conversion of the Securities of such series into shares of Capital Stock of the Company and the terms and conditions upon which such conversion shall be effected (including, without limitation, the initial conversion price or rate, the conversion period, any adjustment of the applicable conversion price or rate and any requirements relative to the reservation of such shares for purposes of conversion);

(25) if convertible, any applicable limitations on the ownership or transferability of the Capital Stock into which such Securities are convertible; and

(26) any other terms of the series (which terms shall not be inconsistent with the provisions of this Indenture except as permitted by Section 905).

21

All Securities of any one series and the coupons appertaining to any Bearer Securities of such series, if any, shall be substantially identical except, in the case of Registered or Bearer Securities issued in global form, as to denomination and except as may otherwise be provided in or pursuant to such Board Resolution or in any indenture supplemental hereto. All Securities of any one series need not be issued at the same time and, unless otherwise provided, a series may be reopened, without the consent of the Holders, for issuances of additional Securities of such series.

If any of the terms of the Securities of any series are established by action taken pursuant to one or more Board Resolutions, a copy of an appropriate record of such action(s) shall be certified by the Secretary or an Assistant Secretary or Attorney-in-Fact of the Company and delivered to the Trustee at or prior to the delivery of the Company Order for authentication and delivery of such Securities.

Section 302 Denominations.

The Securities of each series shall be issuable in such denominations as shall be specified as contemplated by Section 301. With respect to Securities of any series denominated in Dollars, in the absence of any such provisions with respect to the Securities of any series, the Registered Securities of such series, other than Registered Securities issued in global form (which may be of any denomination), shall be issuable in denominations of $1,000 and any integral multiple thereof and the Bearer Securities of such series other than Bearer Securities issued in global form (which may be of any denomination), shall be issuable in denominations of $5,000.

Section 303 Execution, Authentication, Delivery and Dating.

The Securities and any coupons appertaining thereto shall be executed on behalf of the Company by its Chief Executive Officer, President, Chief Operating Officer, Chief Financial Officer, a Vice President or Attorney-in-Fact. The signature of any of these officers on the Securities and coupons may be manual or facsimile signatures of the present or any future such authorized officer and may be imprinted or otherwise reproduced on the Securities.

Securities or coupons appertaining thereto bearing the manual or facsimile signatures of individuals who were at any time the proper officers of the Company shall bind the Company, notwithstanding that such individuals or any of them have ceased to hold such offices prior to the authentication and delivery of such Securities or did not hold such offices at the date of such Securities or coupons.

At any time and from time to time after the execution and delivery of this Indenture, the Company may deliver Securities of any series, together with any coupon appertaining thereto, executed by the Company to the Trustee for authentication, together with a Company Order for the authentication and delivery of such Securities, and the Trustee in accordance with the Company Order shall authenticate and deliver such Securities; provided, however, that, in connection with its original issuance, no Bearer Security shall be mailed or otherwise delivered to any location in the United States; and provided further that, unless otherwise specified with respect to any series of Securities pursuant to Section 301 a Bearer Security may be delivered in connection with its original issuance only if the Person entitled to receive such Bearer Security

22

shall have furnished a certificate to Euroclear or Clearstream, as the case may be, in the form set forth in Exhibit A-1 to this Indenture or such other certificate as may be specified with respect to any series of Securities pursuant to Section 301, dated no earlier than 15 days prior to the earlier of the date on which such Bearer Security is delivered and the date on which any temporary Security first becomes exchangeable for such Bearer Security in accordance with the terms of such temporary Security and this Indenture. Except as permitted by Section 306, the Trustee shall not authenticate and deliver any Bearer Security unless all appurtenant coupons for interest then matured have been detached and canceled.

If all of the Securities of any series are not to be issued at one time and if the Board Resolution, Officers’ Certificate pursuant to a Board Resolution or supplemental indenture establishing such series shall so permit, such Company Order may set forth procedures acceptable to the Trustee for the issuance of such Securities and determining the terms of particular Securities of such series, such as interest rate or formula, maturity date, date of issuance and date from which interest shall accrue. In authenticating such Securities, and accepting the additional responsibilities under this Indenture in relation to such Securities, the Trustee shall be entitled to receive, and (subject to TIA Section 315(a) through 315(d)) shall be fully protected in relying upon:

(i) an Opinion of Counsel complying with Section 102 and stating that:

(a) the form or forms of such Securities and any coupons have been, or will have been upon compliance with such procedures as may be specified therein, established in conformity with the provisions of this Indenture;

(b) the terms of such Securities and any coupons have been, or will have been upon compliance with such procedures as may be specified therein, established in conformity with the provisions of this Indenture; and

(c) such Securities, together with any coupons appertaining thereto, when completed pursuant to such procedures as may be specified therein, and executed and delivered by the Company to the Trustee for authentication in accordance with this Indenture, authenticated and delivered by the Trustee in accordance with this Indenture and issued by the Company in the manner and subject to any conditions specified in such Opinion of Counsel, will constitute legal, valid and binding obligations of the Company, enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency, reorganization and other similar laws of general applicability relating to or affecting the enforcement of creditors’ rights generally and to general equitable principles and to such other matters as may be specified therein; and

(ii) an Officers’ Certificate complying with Section 102 and stating that all conditions precedent provided for in this Indenture relating to the issuance of such Securities have been, or will have been upon compliance with such procedures as may be specified therein, complied with and that, to the best of the knowledge of the signers of such certificate, no Event of Default with respect to such Securities shall have occurred and be continuing.

23

Notwithstanding the provisions of Section 301 and of the preceding paragraph, if all the Securities of any series are not to be issued at one time, it shall not be necessary to deliver a Company Order, an Opinion of Counsel or an Officers’ Certificate otherwise required pursuant to the preceding paragraph at the time of issuance of each Security of such series, but such order, opinion and certificate, with appropriate modifications to cover such future issuances, shall be delivered at or before the time of issuance of the first Security of such series.

The Trustee shall not be required to authenticate such Securities if the issue of such Securities pursuant to this Indenture will affect the Trustee’s own rights, duties, obligations or immunities under the Securities and this Indenture or otherwise in a manner which is not reasonably acceptable to the Trustee.

Each Registered Security shall be dated the date of its authentication and each Bearer Security shall be dated as of the date specified as contemplated by Section 301.

No Security or coupon appertaining thereto shall be entitled to any benefit under this Indenture or be valid or obligatory for any purpose unless there appears on such Security or the Security to which such coupon appertains a certificate of authentication substantially in the form provided for herein duly executed by the Trustee by manual signature of a Responsible Officer, and such certificate upon any Security shall be conclusive evidence, and the only evidence, that such Security has been duly authenticated and delivered hereunder and is entitled to the benefits of this Indenture. Notwithstanding the foregoing, if any Security shall have been authenticated and delivered hereunder but never issued and sold by the Company, and the Company shall deliver such Security to the Trustee for cancellation as provided in Section 309 together with a written statement (which need not comply with Section 102 and need not be accompanied by an Opinion of Counsel) stating that such Security has never been issued or sold by the Company, for all purposes of this Indenture such Security shall be deemed never to have been authenticated and delivered hereunder and shall never be entitled to the benefits of this Indenture.

Section 304 Temporary Securities.

(a) Pending the preparation of definitive Securities of any series, the Company may execute, and upon Company Order the Trustee shall authenticate and deliver, temporary Securities which are printed, lithographed, typewritten, mimeographed or otherwise produced, in any authorized denomination, substantially of the tenor of the definitive Securities in lieu of which they are issued, in registered form, or, if authorized, in bearer form with one or more coupons or without coupons, and with such appropriate insertions, omissions, substitutions and other variations as the officers of the Company executing such Securities may determine, as conclusively evidenced by their execution of such Securities. In the case of Securities of any series, such temporary Securities may be in global form.

Except in the case of temporary Securities in global form (which shall be exchanged in accordance with Section 304(b) or as otherwise provided in or pursuant to a Board Resolution), if temporary Securities of any series are issued, the Company will cause definitive Securities of that series to be prepared without unreasonable delay. After the preparation of definitive Securities of such series, the temporary Securities of such series shall be exchangeable for definitive Securities of such series upon surrender of the temporary Securities of such series at

24

the office or agency of the Company in a Place of Payment for that series, without charge to the Holder. Upon surrender for cancellation of any one or more temporary Securities of any series (accompanied by any non-matured coupons appertaining thereto), the Company shall execute and the Trustee shall authenticate and deliver in exchange therefor a like principal amount of definitive Securities of the same series and of like tenor of authorized denominations; provided, however, that no definitive Bearer Security shall be delivered in exchange for a temporary Registered Security; and provided further that a definitive Bearer Security shall be delivered in exchange for a temporary Bearer Security only in compliance with the conditions set forth in Section 303. Until so exchanged, the temporary Securities of any series shall in all respects be entitled to the same benefits under this Indenture as definitive Securities of such series.

(b) Unless otherwise provided as contemplated in Section 301, this Section 304(b) shall govern the exchange of temporary Securities issued in global form other than through the facilities of DTC. If any such temporary Security is issued in global form, then such temporary global Security shall, unless otherwise provided therein, be delivered to the London office of a depository or common depository (the “ Common Depository ”), for the benefit of Euroclear and Clearstream.

Without unnecessary delay but in any event not later than the date specified in, or determined pursuant to the terms of, any such temporary global Security (the “ Exchange Date ”), the Company shall deliver to the Trustee definitive Securities, in an aggregate principal amount equal to the principal amount of such temporary global Security, executed by the Company. On or after the Exchange Date, such temporary global Security shall be surrendered by the Common Depository to the Trustee, as the Company’s agent for such purpose, to be exchanged, in whole or from time to time in part, for definitive Securities without charge, and the Trustee shall authenticate and deliver, in exchange for each portion of such temporary global Security, an equal aggregate principal amount of definitive Securities of or within the same series of authorized denominations and of like tenor as the portion of such temporary global Security to be exchanged. The definitive Securities to be delivered in exchange for any such temporary global Security shall be in bearer form, registered form, permanent global bearer form or permanent global registered form, or any combination thereof, as specified as contemplated by Section 301, and, if any combination thereof is so specified, as requested by the beneficial owner thereof; provided, however, that, unless otherwise specified in such temporary global Security, upon such presentation by the Common Depository, such temporary global Security is accompanied by a certificate dated the Exchange Date or a subsequent date and signed by Euroclear as to the portion of such temporary global Security, if any, held for its account then to be exchanged and a certificate dated the Exchange Date or a subsequent date and signed by Clearstream as to the portion of such temporary global Security, if any, held for its account then to be exchanged, each in the form set forth in Exhibit A-2 to this Indenture or in such other form as may be established pursuant to Section 301; and provided further that definitive Bearer Securities shall be delivered in exchange for a portion of a temporary global Security only in compliance with the requirements of Section 303.

Unless otherwise specified in such temporary global Security, the interest of a beneficial owner of Securities of a series in a temporary global Security shall be exchanged for definitive Securities of the same series and of like tenor following the Exchange Date when the account holder instructs Euroclear or Clearstream, as the case may be, to request such exchange on his

25

behalf and delivers to Euroclear or Clearstream, as the case may be, a certificate in the form set forth in Exhibit A-1 to this Indenture (or in such other form as may be established pursuant to Section 301), dated no earlier than 15 days prior to the Exchange Date, copies of which certificate shall be available from the offices of Euroclear or Clearstream, the Trustee, any Authenticating Agent appointed for such series of Securities and each Paying Agent. Unless otherwise specified in such temporary global Security, any such exchange shall be made free of charge to the beneficial owners of such temporary global Security, except that a Person receiving definitive Securities must bear the cost of insurance, postage, transportation and the like unless such Person takes delivery of such definitive Securities in person at the offices of Euroclear or Clearstream. Definitive Securities in bearer form to be delivered in exchange for any portion of a temporary global Security shall be delivered only outside the United States.

Until exchanged in full as hereinabove provided, the temporary Securities of any series shall in all respects be entitled to the same benefits under this Indenture as definitive Securities of the same series and of like tenor authenticated and delivered hereunder, except that, unless otherwise specified as contemplated by Section 301, interest payable on a temporary global Security on an Interest Payment Date for Securities of such series occurring prior to the applicable Exchange Date shall be payable to Euroclear or Clearstream or the applicable Paying Agent on such Interest Payment Date upon delivery by Euroclear or Clearstream to the Trustee of a certificate or certificates in the form set forth in Exhibit A-2 to this Indenture (or in such other forms as may be established pursuant to Section 301), for credit without further interest on or after such Interest Payment Date to the respective accounts of Persons who are the beneficial owners of such temporary global Security on such Interest Payment Date and who have each delivered to Euroclear or Clearstream, as the case may be, a certificate dated no earlier than 15 days prior to the Interest Payment Date occurring prior to such Exchange Date in the form set forth as Exhibit A-1 to this Indenture (or in such other forms as may be established pursuant to Section 301). Notwithstanding anything to the contrary herein contained, the certifications made pursuant to this paragraph shall satisfy the certification requirements of the preceding two paragraphs of this Section 304(b) and of the third paragraph of Section 303 of this Indenture and the interests of the Persons who are the beneficial owners of the temporary global Security with respect to which such certification was made will be exchanged for definitive Securities of the same series and of like tenor on the Exchange Date or the date of certification if such date occurs after the Exchange Date, without further act or deed by such beneficial owners. Except as otherwise provided in this paragraph, no payments of principal or interest, if any, owing with respect to a beneficial interest in a temporary global Security will be made unless and until such interest in such temporary global Security shall have been exchanged for an interest in a definitive Security. Any interest so received by Euroclear or Clearstream and not paid as herein provided shall be returned to the Trustee or the applicable Paying Agent prior to the expiration of two years after such Interest Payment Date in order to be repaid to the Company.

Section 305 Registration, Registration of Transfer and Exchange.

The Company shall cause to be kept at the Corporate Trust Office of the Trustee or in any office or agency of the Company in a Place of Payment a register for each series of Securities (the registers maintained in such office or in any such office or agency of the Company in a Place of Payment being herein sometimes referred to collectively as the “ Security Register ”) in which, subject to such reasonable regulations as it or the Security Registrar may prescribe, the

26

Company shall provide for the registration of Registered Securities and of transfers of Registered Securities; provided, however, that there shall be only one Security Register per series of Securities. The Security Register shall be in written form or any other form capable of being converted into written form within a reasonable time. The Trustee, at its Corporate Trust Office, is hereby initially appointed “ Security Registrar ” for the purpose of registering Registered Securities and transfers of Registered Securities on such Security Register as herein provided. In the event that the Trustee shall cease to be Security Registrar, it shall have the right to examine the Security Register at all reasonable times and to require that a copy of the Security Register in written form be delivered to it from time to time as reasonably requested.

Subject to the provisions of this Section 305, upon surrender for registration of transfer of any Registered Security of any series at any office or agency of the Company in a Place of Payment for that series, the Company shall execute, and the Trustee shall authenticate and deliver, in the name of the designated transferee or transferees, one or more new Registered Securities of the same series, of any authorized denominations and of a like aggregate principal amount and tenor, bearing a number not contemporaneously outstanding, and containing identical terms and provisions.

Subject to the provisions of this Section 305, at the option of the Holder, Registered Securities of any series may be exchanged for other Registered Securities of the same series, of any authorized denomination or denominations and of a like aggregate principal amount, containing identical terms and provisions, upon surrender of the Registered Securities to be exchanged at any such office or agency. Whenever any such Registered Securities are so surrendered for exchange, the Company shall execute, and the Trustee shall authenticate and deliver, the Registered Securities which the Holder making the exchange is entitled to receive. Unless otherwise specified with respect to any series of Securities as contemplated by Section 301, Bearer Securities may not be issued in exchange for Registered Securities.

If (but only if) permitted as contemplated by Section 301, at the option of the Holder, Bearer Securities of any series may be exchanged for Registered Securities of the same series of any authorized denominations and of a like aggregate principal amount and tenor, upon surrender of the Bearer Securities to be exchanged at any such office or agency, with all unmatured coupons and all matured coupons in default thereto appertaining. If the Holder of a Bearer Security is unable to produce any such unmatured coupon or coupons or matured coupon or coupons in default, any such permitted exchange may be effected if the Bearer Securities are accompanied by payment in funds acceptable to the Company in an amount equal to the face amount of such missing coupon or coupons, or the surrender of such missing coupon or coupons may be waived by the Company and the Trustee if there is furnished to them such security or indemnity as they may require to save each of them and any Paying Agent harmless. If thereafter the Holder of such Security shall surrender to any Paying Agent any such missing coupon in respect of which such a payment shall have been made, such Holder shall be entitled to receive the amount of such payment; provided, however, that, except as otherwise provided in Section 1002, interest represented by coupons shall be payable only upon presentation and surrender of those coupons at an office or agency located outside the United States. Notwithstanding the foregoing, in case a Bearer Security of any series is surrendered at any such office or agency in a permitted exchange for a Registered Security of the same series and like tenor after the close of business at such office or agency on (i) any Regular Record Date and before the opening of

27

business at such office or agency on the relevant Interest Payment Date, or (ii) any Special Record Date and before the opening of business at such office or agency on the related proposed date for payment of Defaulted Interest, such Bearer Security shall be surrendered without the coupon relating to such Interest Payment Date or proposed date for payment, as the case may be, and interest or Defaulted Interest, as the case may be, will not be payable on such Interest Payment Date or proposed date for payment, as the case may be, in respect of the Registered Security issued in exchange for such Bearer Security, but will be payable only to the Holder of such coupon when due in accordance with the provisions of this Indenture. Whenever any Securities are so surrendered for exchange, the Company shall execute, and the Trustee shall authenticate and deliver, the Securities which the holder making the exchange is entitled to receive.

Notwithstanding the foregoing, except as otherwise specified as contemplated by Section 301, any permanent global Security shall be exchangeable only as provided in this paragraph. If the depository for any permanent global Security is DTC, then, unless the terms of such global Security expressly permit such global Security to be exchanged in whole or in part for definitive Securities, a global Security may be transferred, in whole but not in part, only to a nominee of DTC, or by a nominee of DTC to DTC, or to a successor to DTC for such global Security selected or approved by the Company or to a nominee of such successor to DTC. If at any time DTC notifies the Company that it is unwilling or unable to continue as depository for the applicable global Security or Securities or if at any time DTC ceases to be a clearing agency registered under the Exchange Act if so required by applicable law or regulation, the Company shall appoint a successor depository with respect to such global Security or Securities. If (x) a successor depository for such global Security or Securities is not appointed by the Company within 90 days after the Company receives such notice or becomes aware of such unwillingness, inability or ineligibility, (y) an Event of Default has occurred and is continuing and the beneficial owners representing a majority in principal amount of the applicable series of Securities represented by such global Security or Securities advise DTC to cease acting as depository for such global Security or Securities or (z) the Company, in its sole discretion, determines at any time that all Outstanding Securities (but not less than all) of any series issued or issuable in the form of one or more global Securities shall no longer be represented by such global Security or Securities (provided, however, the Company may not make such determination during the 40-day restricted period provided by Regulation S under the Securities Act or during any other similar period during which the Securities must be held in global form as may be required by the Securities Act), then the Company shall execute, and the Trustee shall authenticate and deliver definitive Securities of like series, rank, tenor and terms in definitive form in an aggregate principal amount equal to the principal amount of such global Security or Securities. If any beneficial owner of an interest in a permanent global Security is otherwise entitled to exchange such an interest for Securities of such series and of like tenor and principal amount of another authorized form and denomination, as specified as contemplated by Section 301 and provided that any applicable notice provided in the permanent global Security shall have been given, then without unnecessary delay but in any event not later than the earliest date on which such interest may be so exchanged, the Company shall execute, and the Trustee shall authenticate and deliver definitive Securities in aggregate principal amount equal to the principal amount of such beneficial owner’s interest in such permanent global Security. On or after the earliest date on which such interests may be so exchanged, such permanent global Security shall be surrendered

28

for exchange by DTC or such other depository as shall be specified in the Company Order with respect thereto to the Trustee, as the Company’s agent for such purpose; provided, however, that no such exchanges may occur during a period beginning at the opening of business 15 days before any selection of Securities to be redeemed and ending on the relevant Redemption Date if the Security for which exchange is requested may be among those selected for redemption; and provided further that no Bearer Security delivered in exchange for a portion of a permanent global Security shall be mailed or otherwise delivered to any location in the United States. If a Registered Security is issued in exchange for any portion of a permanent global Security after the close of business at the office or agency where such exchange occurs on (i) any Regular Record Date and before the opening of business at such office or agency on the relevant Interest Payment Date, or (ii) any Special Record Date and before the opening of business at such office or agency on the related proposed date for payment of Defaulted Interest, interest or Defaulted Interest, as the case may be, will not be payable on such Interest Payment Date or proposed date for payment, as the case may be, in respect of such Registered Security, but will be payable on such Interest Payment Date or proposed date for payment, as the case may be, only to the Person to whom interest in respect of such portion of such permanent global Security is payable in accordance with the provisions of this Indenture.

All Securities issued upon any registration of transfer or exchange of Securities shall be the valid obligations of the Company, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Securities surrendered upon such registration of transfer or exchange.

Every Registered Security presented or surrendered for registration of transfer or for exchange or redemption shall (if so required by the Company or the Security Registrar) be duly endorsed, or be accompanied by a written instrument of transfer in form satisfactory to the Security Registrar, duly executed by the Holder thereof or his attorney duly authorized in writing.

No service charge shall be made for any registration of transfer or exchange of Securities, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any registration of transfer or exchange of Securities, other than exchanges pursuant to Section 304, Section 906, Section 1107 or Section 1305 not involving any transfer.

The Company or the Trustee, as applicable, shall not be required (i) to issue, register the transfer of or exchange any Security if such Security may be among those selected for redemption during a period beginning at the opening of business 15 days before selection of the Securities to be redeemed under Section 1103 and ending at the close of business on (A) if such Securities are issuable only as Registered Securities, the day of the mailing of the relevant notice of redemption and (B) if such Securities are issuable as Bearer Securities, the day of the first publication of the relevant notice of redemption or, if such Securities are also issuable as Registered Securities and there is no publication, the mailing of the relevant notice of redemption, or (ii) to register the transfer of or exchange any Registered Security so selected for redemption in whole or in part, except, in the case of any Registered Security to be redeemed in part, the portion thereof not to be redeemed, or (iii) to exchange any Bearer Security so selected for redemption except that such a Bearer Security may be exchanged for a Registered Security of that series and like tenor, provided that such Registered Security shall be simultaneously

29

surrendered for redemption, or (iv) to issue or to register the transfer or exchange of any Security which has been surrendered for repayment at the option of the Holder, except the portion, if any, of such Security not to be so repaid.

Section 306 Mutilated, Destroyed, Lost and Stolen Securities.

If any mutilated Security or a Security with a mutilated coupon appertaining to it is surrendered to the Trustee or the Company, together with such security or indemnity as may be required by the Company or the Trustee to save each of them or any agent of either of them harmless, the Company shall execute and the Trustee shall authenticate and deliver in exchange therefor a new Security of the same series and principal amount, containing identical terms and provisions and bearing a number not contemporaneously outstanding, with coupons corresponding to the coupons, if any, appertaining to the surrendered Security.

If there shall be delivered to the Company and to the Trustee (i) evidence to their satisfaction of the destruction, loss or theft of any Security or coupon, and (ii) such security or indemnity as may be required by them to save each of them and any agent of either of them harmless, then, in the absence of actual notice to the Company or the Trustee that such Security or coupon has been acquired by a bona fide purchaser, the Company shall execute and upon its written request the Trustee shall authenticate and deliver, in lieu of any such destroyed, lost or stolen Security or in exchange for the Security to which a destroyed, lost or stolen coupon appertains (with all appurtenant coupons not destroyed, lost or stolen), a new Security of the same series and principal amount, containing identical terms and provisions and bearing a number not contemporaneously outstanding, with coupons corresponding to the coupons, if any, appertaining to such destroyed, lost or stolen Security or to the Security to which such destroyed, lost or stolen coupon appertains.

Notwithstanding the provisions of the previous two paragraphs, in case any such mutilated, destroyed, lost or stolen Security or coupon has become or is about to become due and payable, the Company in its discretion may, instead of issuing a new Security, with coupons corresponding to coupons, if any, appertaining to such mutilated, destroyed, lost or stolen Security or to the Security to which such mutilated, destroyed, lost or stolen coupon appertains, pay such Security or coupon; provided, however, that payment of principal of (and premium or Make-Whole Amount, if any), any interest on and any Additional Amounts with respect to Bearer Securities shall, except as otherwise provided in Section 1002, be payable only at an office or agency located outside the United States and, unless otherwise specified as contemplated by Section 301, any interest on Bearer Securities shall be payable only upon presentation and surrender of the coupons appertaining thereto.

Upon the issuance of any new Security under this Section, the Company may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Trustee) connected therewith.

Every new Security of any series with its coupons, if any, issued pursuant to this Section in lieu of any mutilated, destroyed, lost or stolen Security, or in exchange for a Security to which a mutilated, destroyed, lost or stolen coupon appertains, shall constitute an original additional

30

contractual obligation of the Company, whether or not the mutilated, destroyed, lost or stolen Security and its coupons, if any, or the destroyed, lost or stolen coupon shall be at any time enforceable by anyone, and shall be entitled to all the benefits of this Indenture equally and proportionately with any and all other Securities of that series and their coupons, if any, duly issued hereunder.

The provisions of this Section are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities or coupons.

Section 307 Payment of Interest; Interest Rights Preserved.

Except as otherwise specified with respect to a series of Securities in accordance with the provisions of Section 301, interest, if any, on any Registered Security that is payable, and is punctually paid or duly provided for, on any Interest Payment Date shall be paid to the Person in whose name that Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest at the office or agency of the Company maintained for such purpose pursuant to Section 1002; provided, however, that each installment of interest, if any, on any Registered Security may at the Company’s option be paid by (i) mailing a check for such interest, payable to or upon the written order of the Person entitled thereto pursuant to Section 308, to the address of such Person as it appears on the Security Register or (ii) transfer to an account maintained by the payee located inside the United States.

Unless otherwise provided as contemplated by Section 301 with respect to the Securities of any series, payment of interest, if any, may be made, in the case of a Bearer Security, by transfer to an account maintained by the payee with a bank located outside the United States.

Unless otherwise provided as contemplated by Section 301, every permanent global Security will provide that interest, if any, payable on any Interest Payment Date will be paid to DTC, Euroclear and/or Clearstream, as the case may be, with respect to that portion of such permanent global Security held for its account by DTC, Euroclear or Clearstream, as the case may be, for the purpose of permitting such party to credit the interest, if any, received by it in respect of such permanent global Security to the accounts of the beneficial owners thereof.

In case a Bearer Security of any series is surrendered in exchange for a Registered Security of such series after the close of business (at an office or agency in a Place of Payment for such series) on any Regular Record Date and before the opening of business (at such office or agency) on the next succeeding Interest Payment Date, such Bearer Security shall be surrendered without the coupon relating to such Interest Payment Date and interest will not be payable on such Interest Payment Date in respect of the Registered Security issued in exchange for such Bearer Security, but will be payable only to the Holder of such coupon when due in accordance with the provisions of this Indenture.

Except as otherwise specified with respect to a series of Securities in accordance with the provisions of Section 301, any interest on any Registered Security of any series that is payable, but is not punctually paid or duly provided for, on any Interest Payment Date shall forthwith cease to be payable to the registered Holder thereof on the relevant Regular Record Date by

31

virtue of having been such Holder, and such defaulted interest and, if applicable, interest on such defaulted interest (to the extent lawful) at the rate or formula specified in the Securities of such series (such defaulted interest and, if applicable, interest thereon herein collectively called “ Defaulted Interest ”) may be paid by the Company, at its election in each case, as provided in clause (1) or (2) below:

(1) The Company may elect to make payment of any Defaulted Interest to the Persons in whose names the Registered Securities of such series (or their respective Predecessor Securities) are registered at the close of business on a Special Record Date for the payment of such Defaulted Interest, which shall be fixed in the following manner. The Company shall notify the Trustee in writing of the amount of Defaulted Interest proposed to be paid on each Registered Security of such series and the date of the proposed payment (which shall not be less than 20 days after such notice is received by the Trustee), and at the same time the Company shall deposit with the Trustee an amount of money in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) equal to the aggregate amount proposed to be paid in respect of such Defaulted Interest or shall make arrangements satisfactory to the Trustee for such deposit on or prior to the date of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons entitled to such Defaulted Interest as in this clause provided. Thereupon the Trustee shall fix a Special Record Date for the payment of such Defaulted Interest which shall be not more than 15 days and not less than 10 days prior to the date of the proposed payment and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment. The Trustee shall promptly notify the Company of such Special Record Date and, in the name and at the expense of the Company, shall cause notice (which notice shall be prepared by the Company) of the proposed payment of such Defaulted Interest and the Special Record Date therefor to be mailed, first-class postage prepaid, to each Holder of Registered Securities of such series at his address as it appears in the Security Register not less than 10 days prior to such Special Record Date. Notice of the proposed payment of such Defaulted Interest and the Special Record Date therefor having been mailed as aforesaid, such Defaulted Interest shall be paid to the Persons in whose names the Registered Securities of such series (or their respective Predecessor Securities) are registered at the close of business on such Special Record Date and shall no longer be payable pursuant to the following clause (2). In case a Bearer Security of any series is surrendered at the office or agency in a Place of Payment for such series in exchange for a Registered Security of such series after the close of business at such office or agency on any Special Record Date and before the opening of business at such office or agency on the related proposed date for payment of Defaulted Interest, such Bearer Security shall be surrendered without the coupon relating to such proposed date of payment and Defaulted Interest will not be payable on such proposed date of payment in respect of the Registered Security issued in exchange for such Bearer Security, but will be payable only to the Holder of such coupon when due in accordance with the provisions of this Indenture.

(2) The Company may make payment of any Defaulted Interest on the Registered Securities of any series in any other lawful manner not inconsistent with the requirements of any securities exchange on which such Securities may be listed, and upon such notice as may be required by such exchange, if, after notice given by the Company, in writing, to the Trustee of the proposed payment pursuant to this clause, such manner of payment shall be deemed practicable by the Trustee.

32

Subject to the foregoing provisions of this Section and Section 305, each Security delivered under this Indenture upon registration of transfer of or in exchange for or in lieu of any other Security shall carry the rights to interest accrued and unpaid, and to accrue, which were carried by such other Security.

Section 308 Persons Deemed Owners.

Prior to due presentment of a Registered Security for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name such Registered Security is registered as the owner of such Security for the purpose of receiving payment of principal of (and premium or Make-Whole Amount, if any), and (subject to Section 305 and Section 307) interest on, such Registered Security and for all other purposes whatsoever, whether or not such Registered Security be overdue, and neither the Company, the Trustee nor any agent of the Company or the Trustee shall be affected by notice to the contrary.

Title to any Bearer Security and any coupons appertaining thereto shall pass by delivery. The Company, the Trustee and any agent of the Company or the Trustee may treat the Holder of any Bearer Security and the Holder of any coupon as the absolute owner of such Security or coupon for the purpose of receiving payment thereof or on account thereof and for all other purposes whatsoever, whether or not such Security or coupon be overdue, and neither the Company, the Trustee nor any agent of the Company or the Trustee shall be affected by notice to the contrary.

None of the Company, the Trustee, any Paying Agent or the Security Registrar will have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests of a Security in global form or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests.

Notwithstanding the foregoing, with respect to any global Security, nothing herein shall prevent the Company, the Trustee, or any agent of the Company or the Trustee, from giving effect to any written certification, proxy or other authorization furnished by any depository, as a Holder, with respect to such global Security or impair, as between such depository and owners of beneficial interests in such global Security, the operation of customary practices governing the exercise of the rights of such depository (or its nominee) as Holder of such global Security.

Section 309 Cancellation.

All Securities and coupons surrendered for payment, redemption, repayment at the option of the Holder, registration of transfer or exchange or for credit against any sinking fund payment shall, if surrendered to any Person other than the Trustee, be delivered to the Trustee, and any such Securities and coupons and Securities and coupons surrendered directly to the Trustee for any such purpose shall be promptly canceled by it. The Company may at any time deliver to the Trustee for cancellation any Securities previously authenticated and delivered hereunder which the Company may have acquired in any manner whatsoever, and may deliver to the Trustee (or

33

to any other Person for delivery to the Trustee) for cancellation any Securities previously authenticated hereunder which the Company has not issued and sold, and all Securities so delivered shall be promptly canceled by the Trustee. If the Company shall so acquire any of the Securities, however, such acquisition shall not operate as a redemption or satisfaction of the indebtedness represented by such Securities unless and until the same are surrendered to the Trustee for cancellation. No Securities shall be authenticated in lieu of or in exchange for any Securities canceled as provided in this Section, except as expressly permitted by this Indenture. Cancelled Securities and coupons held by the Trustee shall be destroyed by the Trustee and, if requested in writing by the Company, the Trustee shall deliver a certificate of such destruction to the Company, unless by a Company Order the Company directs their return to it.

Section 310 Computation of Interest.

Except as otherwise specified as contemplated by Section 301 with respect to Securities of any series, interest, if any, on the Securities of each series shall be computed on the basis of a 360-day year consisting of twelve 30-day months.

ARTICLE FOUR

SATISFACTION AND DISCHARGE

Section 401 Satisfaction and Discharge of Indenture.

This Indenture shall upon Company Request cease to be of further effect with respect to any series of Securities specified in such Company Request (except as to any surviving rights of registration of transfer or exchange of Securities of such series herein expressly provided for and any right to receive Additional Amounts, as provided in Section 1007), and the Trustee, upon receipt of a Company Order, and at the expense of the Company, shall execute proper instruments acknowledging satisfaction and discharge of this Indenture as to such series when

(1) either

(A) all Securities of such series theretofore authenticated and delivered and all coupons, if any, appertaining thereto (other than (i) coupons appertaining to Bearer Securities surrendered for exchange for Registered Securities and maturing after such exchange, whose surrender is not required or has been waived as provided in Section 305, (ii) Securities and coupons of such series which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 306, (iii) coupons appertaining to Securities called for redemption and maturing after the relevant Redemption Date, whose surrender has been waived as provided in Section 1106, and (iv) Securities and coupons of such series for whose payment money has theretofore been deposited in trust or segregated and held in trust by the Company and thereafter repaid to the Company or discharged from such trust, as provided in Section 1003) have been delivered to the Trustee for cancellation; or

(B) all Securities of such series and, in the case of (i) or (ii) below, any coupons appertaining thereto not theretofore delivered to the Trustee for cancellation

(i) have become due and payable, or

34

(ii) will become due and payable at their Stated Maturity within one year, or

(iii) if redeemable at the option of the Company, are to be called for redemption within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Company, and the Company, in the case of (i), (ii) or (iii) above, has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust for the purpose an amount in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable, sufficient to pay and discharge the entire indebtedness on such Securities and such coupons not theretofore delivered to the Trustee for cancellation, for principal (and premium or Make-Whole Amount, if any) and interest, and any Additional Amounts with respect thereto, to the date of such deposit (in the case of Securities which have become due and payable) or the Stated Maturity or Redemption Date, as the case may be;

(2) The Company has paid or caused to be paid all or other sums payable hereunder by the Company; and

(3) The Company has delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Indenture as to such series have been complied with.

Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the Company to the Trustee and any predecessor Trustee under Section 606, the obligations of the Company to any Authenticating Agent under Section 611 and, if money shall have been deposited with and held by the Trustee pursuant to subclause (B) of clause (1) of this Section, the obligations of the Trustee under Section 402 and the last paragraph of Section 1003, shall survive.

In the event that there are Securities of two or more series outstanding hereunder, the Trustee shall be required to execute an instrument acknowledging satisfaction and discharge of this Indenture only if requested to do so with respect to Securities of a particular series as to which it is Trustee and if the other conditions thereto are met.

Section 402 Application of Trust Fund.

Subject to the provisions of the last paragraph of Section 1003, all money deposited with the Trustee pursuant to Section 401 shall be held in trust and applied by it, in accordance with the provisions of the Securities, the coupons and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as its own Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the principal (and premium or Make-Whole Amount, if any), and any interest and Additional Amounts for whose payment such money has been deposited with or received by the Trustee, but such money need not be segregated from other funds except to the extent required by law.

35

ARTICLE FIVE

REMEDIES

Section 501 Events of Default.

Subject to any modifications, additions or deletions relating to any series of Securities as contemplated pursuant to Section 301, “ Event of Default, ” wherever used herein with respect to any particular series of Securities, means any one of the following events (whatever the reason for such Event of Default and whether or not it shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body):

(1) default in the payment of any interest upon or any Additional Amounts payable in respect of any Security of or within that series or of any coupon appertaining thereto, when such interest, Additional Amounts or coupon becomes due and payable, and continuance of such default for a period of 30 days; or

(2) default in the payment of the principal of (or premium or Make-Whole Amount, if any, on) any Security of that series when it becomes due and payable at its Maturity; or

(3) default in the deposit of any sinking fund payment, when and as due by the terms of any Security of that series; or

(4) default in the performance, or breach, of any covenant or warranty of the Company in this Indenture with respect to any Security of that series (other than a covenant or warranty a default in whose performance or whose breach is elsewhere in this Section specifically dealt with), and continuance of such default or breach for a period of 60 days after there has been given, by registered or certified mail, to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount of the Outstanding Securities of that series a written notice specifying such default or breach and requiring it to be remedied and stating that such notice is a “ Notice of Default ” hereunder; or

(5) default under a bond, debenture, note, mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any indebtedness for money borrowed by the Company (or by any Subsidiary, the repayment of which the Company has guaranteed or for which the Company is directly responsible or liable as obligor or guarantor), having a principal amount outstanding in excess of $20,000,000 (other than indebtedness which is non-recourse to the Company or the Subsidiaries), whether such indebtedness now exists or shall hereafter be created, which default shall have resulted in such indebtedness being declared due and payable prior to the date on which it would otherwise have become due and payable, without such indebtedness having been discharged, or such acceleration having been rescinded or annulled, within a period of 30 days after there shall have been given, by registered or certified mail, to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount of the Outstanding Securities of that series a written notice specifying such default and requiring the Company to cause such indebtedness to be discharged or cause such acceleration to be rescinded or annulled and stating that such notice is a “ Notice of Default ” hereunder; or

36

(6) the entry by a court of competent jurisdiction of one or more judgments, orders or decrees against the Company or any of its Subsidiaries in an aggregate amount (excluding amounts covered by insurance) in excess of $20,000,000 and such judgments, orders or decrees remain undischarged, unstayed and unsatisfied in an aggregate amount (excluding amounts covered by insurance) in excess of $20,000,000 for a period of 60 consecutive days; or

(7) the Company or any Significant Subsidiary pursuant to or within the meaning of any Bankruptcy Law:

(A) commences a voluntary case,

(B) consents to the entry of an order for relief against it in an involuntary case,

(C) consents to the appointment of a Custodian of it or for all or substantially all of its property, or

(D) makes a general assignment for the benefit of its creditors; or

(8) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that:

(A) is for relief against the Company or any Significant Subsidiary in an involuntary case,

(B) appoints a Custodian of the Company or any Significant Subsidiary or for all or substantially all of either of its property, or

(C) orders the liquidation of the Company or any Significant Subsidiary, and the order or decree remains unstayed and in effect for 90 days; or

(9) any other Event of Default provided with respect to Securities of that series.

As used in this Section 501, the term “ Bankruptcy Law ” means Title 11, U.S. Code or any similar Federal or state law for the relief of debtors and the term “ Custodian ” means any receiver, trustee, assignee, liquidator or other similar official under any Bankruptcy Law.

Section 502 Acceleration of Maturity; Rescission and Annulment.

If an Event of Default discussed in clause (1), (2), (3), (4), (5), (6) or (9) of Section 501 with respect to Securities of any series at the time Outstanding occurs and is continuing, then and in every such case the Trustee or the Holders of not less than 25% in principal amount of the Outstanding Securities of that series may declare the principal (or, if any Securities are Original Issue Discount Securities or Indexed Securities, such portion of the principal as may be specified

37

in the terms thereof) of, and the Make-Whole Amount, if any, on, all the Outstanding Securities of that series and any accrued and unpaid cash interest through the date of such declaration to be due and payable immediately, by a notice in writing to the Company (and to the Trustee if given by the Holders), and upon any such declaration such principal or specified portion thereof shall become immediately due and payable.

At any time after such a declaration of acceleration with respect to Securities of any series has been made and before a judgment or decree for payment of the money due has been obtained by the Trustee as hereinafter in this Article provided, the Holders of a majority in principal amount of the Outstanding Securities of that series, by written notice to the Company and the Trustee, may rescind and annul such declaration and its consequences if:

(1) the Company has paid or deposited with the Trustee a sum sufficient to pay in the currency, currency unit or composite currency in which the Securities of such series is payable (except as otherwise specified pursuant to Section 301 for the Securities of such series):

(A) all overdue installments of interest on and any Additional Amounts payable in respect of all Outstanding Securities of that series and any related coupons;

(B) the principal of (and premium or Make-Whole Amount, if any, on) any Outstanding Securities of that series which have become due otherwise than by such declaration of acceleration and interest thereon at the rate or rates borne by or provided for in such Securities;

(C) to the extent that payment of such interest is lawful, interest upon overdue installments of interest and any Additional Amounts at the rate or rates borne by or provided for in such Securities; and

(D) all sums paid or advanced by the Trustee hereunder and the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel; and

(2) all Events of Default with respect to Securities of that series, other than the nonpayment of the principal of (or premium or Make-Whole Amount, if any) or interest, if any, on Securities of that series which have become due solely by such declaration of acceleration, have been cured or waived as provided in Section 513.

No such rescission shall affect any subsequent default or impair any right consequent thereon.

If an Event of Default described in clause (7) or (8) of Section 501 occurs and is continuing, then the principal (or, if any Securities are Original Issue Discount Securities or Indexed Securities, such portion of the principal as may be specified in the terms thereof) of, and the Make-Whole Amount, if any, on, all the Outstanding Securities of that series and any accrued interest through the occurrence of such Event of Default, shall become due and payable immediately, without any declaration or other act by the Trustee or any other Holder.

38

Section 503 Collection of Indebtedness and Suits for Enforcement by Trustee.

The Company covenants that if:

(1) default is made in the payment of any installment of interest or Additional Amounts, if any, on any Security of any series and any related coupon when such interest or Additional Amount becomes due and payable and such default continues for a period of 30 days, or

(2) default is made in the payment of the principal of (or premium or Make-Whole Amount, if any, on) any Security of any series at its Maturity, then the Company will, upon demand of the Trustee, pay to the Trustee, for the benefit of the Holders of such Securities of such series and coupons, the whole amount then due and payable on such Securities and coupons for principal (and premium or Make-Whole Amount, if any) and interest and Additional Amounts, with interest upon any overdue principal (and premium or Make-Whole Amount, if any) and, to the extent that payment of such interest shall be legally enforceable, upon any overdue installments of interest or Additional Amounts, if any, at the rate or rates borne by or provided for in such Securities, and, in addition thereto, such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel.

If the Company fails to pay such amounts forthwith upon such demand, the Trustee, in its own name and as trustee of an express trust, may institute a judicial proceeding for the collection of the sums so due and unpaid, and may prosecute such proceeding to judgment or final decree, and may enforce the same against the Company or any other obligor upon such Securities of such series and collect the moneys adjudged or decreed to be payable in the manner provided by law out of the property of the Company or any other obligor upon such Securities of such series, wherever situated.

If an Event of Default with respect to Securities of any series occurs and is continuing, the Trustee may in its discretion proceed to protect and enforce its rights and the rights of the Holders of Securities of such series and any related coupons by such appropriate judicial proceedings as the Trustee shall deem most effectual to protect and enforce any such rights, whether for the specific enforcement of any covenant or agreement in this Indenture or in aid of the exercise of any power granted herein, or to enforce any other proper remedy.

Section 504 Trustee May File Proofs of Claim.

In case of the pendency of any receivership, insolvency, liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or other judicial proceeding relative to the Company or any other obligor upon the Securities or the property of the Company or of such other obligor or their creditors, the Trustee (irrespective of whether the principal of the Securities of any series shall then be due and payable as therein expressed or by declaration or otherwise and irrespective of whether the Trustee shall have made any demand on the Company for the payment of overdue principal, premium or Make-Whole Amount, if any, or interest) shall be entitled and empowered, by intervention in such proceeding or otherwise:

(i) to file and prove a claim for the whole amount, or such lesser amount as may be provided for in the Securities of such series, of principal (and premium or Make-Whole Amount, if any) and interest and Additional Amounts, if any, owing and unpaid in respect of the Securities and to file such other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and of the Holders allowed in such judicial proceeding, and

39

(ii) to collect and receive any moneys or other property payable or deliverable on any such claims and to distribute the same; and any custodian, receiver, assignee, trustee, liquidator, sequestrator (or other similar official) in any such judicial proceeding is hereby authorized by each Holder of Securities of such series and coupons to make such payments to the Trustee, and in the event that the Trustee shall consent, in writing, to the making of such payments directly to the Holders, to pay to the Trustee any amount due to it for the reasonable compensation, expenses, disbursements and advances of the Trustee and any predecessor Trustee, their agents and counsel, and any other amounts due the Trustee or any predecessor Trustee under Section 606.

Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder of a Security or coupon any plan of reorganization, arrangement, adjustment or composition affecting the Securities or coupons or the rights of any Holder thereof, or to authorize the Trustee to vote in respect of the claim of any Holder of a Security or coupon in any such proceeding.

Section 505 Trustee May Enforce Claims Without Possession of Securities or Coupons.

All rights of action and claims under this Indenture or any of the Securities or coupons may be prosecuted and enforced by the Trustee without the possession of any of the Securities or coupons or the production thereof in any proceeding relating thereto, and any such proceeding instituted by the Trustee shall be brought in its own name as trustee of an express trust, and any recovery of judgment shall, after provision for the payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable benefit of the Holders of the Securities and coupons in respect of which such judgment has been recovered.

Section 506 Application of Money Collected.

Any money collected by the Trustee pursuant to this Article shall be applied in the following order, at the date or dates fixed by the Trustee and, in case of the distribution of such money on account of principal (or premium or Make-Whole Amount, if any) or any interest and any Additional Amounts, upon presentation of the Securities or coupons, or both, as the case may be (such presentation, in the case of Bearer Securities or coupons, to occur only outside the United States), and the notation thereon of the payment if only partially paid and upon surrender thereof if fully paid:

FIRST: To the payment (such payment, in the case of Bearer Securities or coupons, to occur only outside the United States) of all amounts due the Trustee and any predecessor Trustee under Section 606,

40

SECOND: To the payment of the amounts then due and unpaid upon the Securities and coupons for principal (and premium or Make-Whole Amount, if any) and interest and any Additional Amounts payable, in respect of which or for the benefit of which such money has been collected, ratably, without preference or priority of any kind, according to the aggregate amounts due and payable on such Securities and coupons for principal (and premium or Make-Whole Amount, if any), interest and Additional Amounts, respectively, and

THIRD: To the payment of the remainder, if any, to the Company.

Section 507 Limitation on Suits.

No Holder of any Security of any series or any related coupon shall have any right to institute any proceeding, judicial or otherwise, with respect to this Indenture, or for the appointment of a receiver or trustee, or for any other remedy hereunder, unless:

(1) such Holder has previously given written notice to the Trustee of a continuing Event of Default with respect to the Securities of that series;

(2) the Holders of not less than 25% in principal amount of the Outstanding Securities of that series in the case of any Event of Default described in clause (1), (2), (3), (4), (5), (6) or (9) of Section 501, or, in the case of any Event of Default described in clause (7) or (8) of Section 501, the Holders of not less than 25% in principal amount of all Outstanding Securities, shall have made written request to the Trustee to institute proceedings in respect of such Event of Default in its own name as Trustee hereunder;

(3) such Holder or Holders have offered to the Trustee indemnity satisfactory to the Trustee against the costs, expenses and liabilities to be incurred in compliance with such request;

(4) the Trustee for 60 days after its receipt of such notice, request and offer of indemnity has failed to institute any such proceeding; and

(5) no direction inconsistent with such written request has been given to the Trustee during such 60-day period by the Holders of a majority in principal amount of the Outstanding Securities of that series in the case of any Event of Default described in clause (1), (2), (3), (4), (5), (6) or (9) of Section 501, or, in the case of any Event of Default described in clause (7) or (8) of Section 501, the Holders of not less than 25% in principal amount of all Outstanding Securities; it being understood and intended that no one or more of such Holders shall have any right in any manner whatever by virtue of, or by availing of, any provision of this Indenture to affect, disturb or prejudice the rights of any other of such Holders in the case of any Event of Default described in clause (1), (2), (3), (4), (5), (6) or (9) of Section 501, or, in the case of any Event of Default described in clause (7) or (8) of Section 501, the Holders of not less than 25% in principal amount of all Outstanding Securities (it being understood that the Trustee does

41

not have an affirmative duty to ascertain whether or not such actions or forebearance are unduly prejudicial to such Holders), or to obtain or to seek to obtain priority or preference over any other of such Holders or to enforce any right under this Indenture, except in the manner herein provided and for the equal and ratable benefit of all such Holders of Securities of the same series, in the case of any Event of Default described in clause (1), (2), (3), (4), (5), (6) or (9) of Section 501, or, of Holders of all Securities in the case of any Event of Default described in clause (7) or (8) of Section 501.

Section 508 Unconditional Right of Holders to Receive Principal, Premium or Make-Whole Amount, if any, Interest and Additional Amounts.

Notwithstanding any other provision in this Indenture, the Holder of any Security or coupon shall have the right which is absolute and unconditional to receive payment of the principal of (and premium or Make-Whole Amount, if any) and (subject to Section 305 and Section 307) interest on, and any Additional Amounts in respect of, such Security or payment of such coupon on the respective due dates expressed in such Security or coupon (or, in the case of redemption, on the Redemption Date) and to convert or exchange such Securities in accordance with Article Sixteen to institute suit for the enforcement of any such payment, conversion or exchange and such rights shall not be impaired without the consent of such Holder.

Section 509 Restoration of Rights and Remedies.

If the Trustee or any Holder of a Security or coupon has instituted any proceeding to enforce any right or remedy under this Indenture and such proceeding has been discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in every such case the Company, the Trustee and the Holders of Securities and coupons shall, subject to any determination in such proceeding, be restored severally and respectively to their former positions hereunder and thereafter all rights and remedies of the Trustee and the Holders shall continue as though no such proceeding has been instituted.

Section 510 Rights and Remedies Cumulative.

Except as otherwise provided with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities or coupons in the last paragraph of Section 306, no right or remedy herein conferred upon or reserved to the Trustee or to the Holders of Securities or coupons is intended to be exclusive of any other right or remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other appropriate right or remedy.

Section 511 Delay or Omission Not Waiver.

No delay or omission of the Trustee or of any Holder of any Security or coupon to exercise any right or remedy accruing upon any Event of Default shall impair any such right or remedy or constitute a waiver of any such Event of Default or any acquiescence therein. Every right and remedy given by this Article or by law to the Trustee or to the Holders may be exercised from time to time, and as often as may be deemed expedient, by the Trustee or by the Holders of Securities or coupons, as the case may be.

42

Section 512 Control by Holders of Securities.

With respect to the Securities of any series, the Holders of not less than a majority in principal amount of the Outstanding Securities of such series shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or exercising any trust or power conferred on the Trustee relating to or arising under clause (1), (2), (3), (4), (5), (6) or (9) of Section 501; and, with respect to all Securities, the Holders of a majority in principal amount of all Outstanding Securities shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred on the Trustee, not relating to or arising under clause (1), (2), (3), (4), (5), (6) or (9) of Section 501; provided that

(1) such direction shall not be in conflict with any rule of law or with this Indenture,

(2) the Trustee may take any other action deemed proper by the Trustee which is not inconsistent with such direction, and

(3) the Trustee need not take any action which might involve it in personal liability or be unduly prejudicial to the Holders of Securities of such series not joining therein (but the Trustee shall have no obligation as to the determination of such undue prejudice).

Section 513 Waiver of Past Defaults.

The Holders of not less than a majority in principal amount of the Outstanding Securities of any series may on behalf of the Holders of all the Securities of such series and any related coupons consent to the waiver of any past default hereunder with respect to such series described in clause (1), (2), (3), (4), (5), (6) or (9) of Section 501 (or, in the case of a default described in clause (7) or (8) of Section 501, the Holders of a majority in principal amount of all Outstanding Securities may waive any such past default with respect to all series) and its consequences, except, in each case, a default

(1) in the payment of the principal of (or premium or Make-Whole Amount, if any) or interest on or Additional Amounts payable in respect of any Security of such series or any related coupons, or

(2) in respect of a covenant or provision hereof which under Article Nine cannot be modified or amended without the consent of the Holder of each Outstanding Security of such series affected.

Upon any such waiver, such default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured, for every purpose of this Indenture; but no such waiver shall extend to any subsequent or other default or Event of Default or impair any right consequent thereon.

43

Section 514 Waiver of Stay or Extension Laws.

The Company covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, or plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay or extension law wherever enacted, now or at any time hereafter in force, which may affect the covenants or the performance of this Indenture; and the Company (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it will not hinder, delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power as though no such law had been enacted.

Section 515 Undertaking for Costs.

All parties to this Indenture agree, and each Holder of any Security by his acceptance thereof shall be deemed to have agreed, that any court may in its discretion require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the Trustee for any action taken or omitted by it as Trustee, the filing by any party litigant in such suit of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys’ fees, against any party litigant in such suit having due regard to the merits and good faith of the claims or defenses made by such party litigant; but the provisions of this Section shall not apply to any suit instituted by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal amount of the Outstanding Securities, or to any suit instituted by any Holder for the enforcement of the payment of the principal of (or premium or Make-Whole Amount, if any) or interest on or Additional Amounts payable with respect to any Security on or after the respective Stated Maturities expressed in such Security (or in the case of redemption, on or after the Redemption Date).

ARTICLE SIX

THE TRUSTEE

Section 601 Notice of Defaults.

Within 90 days after the occurrence of any default hereunder with respect to the Securities of any series, the Trustee shall transmit in the manner and to the extent provided in TIA Section 313(c), notice of such default hereunder known to the Trustee, unless such default shall have been cured or waived; provided, however, that, except in the case of a default in the payment of the principal of (or premium or Make-Whole Amount, if any) or interest on or any Additional Amounts with respect to any Security of such series, or in the payment of any sinking fund installment with respect to the Securities of such series, the Trustee shall be protected in withholding such notice if and so long as Responsible Officers of the Trustee in good faith determine that the withholding of such notice is in the interests of the Holders of the Securities and coupons of such series; and provided further that in the case of any default or breach of the character specified in Section 501(4) with respect to the Securities and coupons of such series, no such notice to Holders shall be given until at least 60 days after the occurrence thereof. For the purpose of this Section, the term “ default ” means any event which is, or after notice or lapse of time or both would become, an Event of Default with respect to the Securities of such series.

44

Section 602 Certain Rights of Trustee.

Subject to the provisions of TIA Section 315(a) through 315(d):

(1) the Trustee shall perform only such duties as are expressly undertaken by it to perform under this Indenture and no implied covenants or obligations shall be read into this Indenture against the Trustee;

(2) the Trustee may conclusively rely and shall be protected in acting or refraining from acting upon any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, coupon or other paper or document believed by it to be genuine and to have been signed or presented by the proper party or parties;

(3) any request or direction of the Company mentioned herein shall be sufficiently evidenced by a Company Request or Company Order (other than delivery of any Security, together with any coupons appertaining thereto, to the Trustee for authentication and delivery pursuant to Section 303 which shall be sufficiently evidenced as provided therein) and any resolution of the Board of Directors may be sufficiently evidenced by a Board Resolution;

(4) whenever in the administration of this Indenture the Trustee shall deem it desirable that a matter be proved or established prior to taking, suffering or omitting any action hereunder, the Trustee (unless other evidence be herein specifically prescribed) may, in the absence of bad faith on its part, conclusively rely upon an Officers’ Certificate;

(5) the Trustee may consult with counsel of its choice and as a condition to the taking, suffering or omission of any action hereunder may demand an Opinion of Counsel, and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization and protection in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon;

(6) the Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction of any of the Holders of Securities of any series or any related coupons pursuant to this Indenture, unless such Holders shall have offered to the Trustee security or indemnity satisfactory to it against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction;

(7) the Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, coupon or other paper or document, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or matters as it may see fit, and, if the Trustee shall determine to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the Company, personally or by agent or attorney at the sole cost of the Company and shall incur no liability or additional liability of any kind by reason of such inquiry or investigation;

45

(8) the Trustee may execute any of the trusts or powers hereunder or perform any duties hereunder either directly or by or through agents or attorneys and the Trustee shall not be responsible for any misconduct or negligence on the part of any agent or attorney appointed with due care by it hereunder;

(9) the Trustee shall not be liable for any action taken, suffered or omitted by it in good faith and reasonably believed by it to be authorized or within the discretion or rights or powers conferred upon it by this Indenture. The Trustee shall not be required to expend or risk its own funds or otherwise incur any financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers, if it shall have reasonable grounds for believing that repayment of such funds or adequate indemnity against such risk or liability is not reasonably assured to it;

(10) in no event shall the Trustee be responsible or liable for special, indirect, or consequential loss or damage of any kind whatsoever (including, but not limited to, loss of profit) irrespective of whether the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action;

(11) the Trustee shall not be deemed to have notice of any Default or Event of Default unless a Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any event which is in fact such a default is received by the Trustee at the Corporate Trust Office of the Trustee, and such notice references the Securities and this Indenture;

(12) the rights, privileges, protections, immunities and benefits given to the Trustee, including, without limitation, its right to be indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and other Person employed to act hereunder; and

(13) the Trustee may request that the Company deliver a certificate setting forth the names of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture.

Section 603 Not Responsible for Recitals or Issuance of Securities.

The recitals contained herein and in the Securities, except the Trustee’s certificate of authentication, and in any coupons shall be taken as the statements of the Company, and neither the Trustee nor any Authenticating Agent assumes any responsibility for their correctness. The Trustee makes no representations as to the validity or sufficiency of this Indenture or of the Securities or coupons, except that the Trustee represents that it is duly authorized to execute and deliver this Indenture, authenticate the Securities and perform its obligations hereunder and that the statements made by it in a Statement of Eligibility on Form T-1 supplied to the Company are true and accurate, subject to the qualifications set forth therein. Neither the Trustee nor any Authenticating Agent shall be accountable for the use or application by the Company of Securities or the proceeds thereof.

46

Section 604  May Hold Securities.

The Trustee, any Paying Agent, Security Registrar, Authenticating Agent or any other agent of the Company, in its individual or any other capacity, may become the owner or pledgee of Securities and coupons and, subject to TIA Sections 310(b) and 311, may otherwise deal with the Company with the same rights it would have if it were not Trustee, Paying Agent, Security Registrar, Authenticating Agent or such other agent.

Section 605 Money Held in Trust.

Money held by the Trustee in trust hereunder need not be segregated from other funds except to the extent required by law. The Trustee shall be under no liability for interest on, or investment of, any money received by it hereunder.

Section 606 Compensation and Reimbursement.

The Company agrees:

(1) to pay to the Trustee from time to time reasonable compensation for all services rendered by it hereunder, including extraordinary services rendered in connection with or during the continuation of a default hereunder (which compensation shall not be limited by any provision of law in regard to the compensation of a trustee of an express trust);

(2) except as otherwise expressly provided herein, to reimburse each of the Trustee and any predecessor Trustee upon its request for all reasonable expenses, disbursements and advances incurred or made by it in accordance with any provision of this Indenture (including the reasonable compensation and the expenses and disbursements of its agents and counsel), except to the extent any such expense, disbursement or advance may be attributable to its gross negligence or bad faith; and

(3) to indemnify each of the Trustee and any predecessor Trustee and each of their respective directors, officers, agents and employees for, and to hold each of them harmless against, any loss, damage, claim, liability or expense, arising out of or in connection with the acceptance or administration of the trust or trusts or the performance of its duties hereunder, including the costs and expenses of defending itself against any claim or liability in connection with the exercise or performance of any of its powers or duties hereunder, or in connection with the provisions of this Section, except to the extent any such loss, liability or expense may be attributable to its own gross negligence or bad faith.

As security for the performance of the obligations of the Company under this Section, the Trustee shall have a lien prior to the Securities upon all property and funds held or collected by the Trustee as such, except funds held in trust for the payment of principal of (or premium or Make-Whole Amount, if any) or interest on particular Securities or any coupons.

When the Trustee incurs expenses or renders services in connection with an Event of Default specified in Section 501(7) or (8), the expenses (including the reasonable charges and expenses of its counsel) and the compensation for the services are intended to constitute expenses of administration under any applicable Federal or state bankruptcy, insolvency or other similar law.

47

The provisions of this Section shall survive the termination of this Indenture or the resignation or removal of the Trustee.

Section 607 Corporate Trustee Required; Eligibility; Conflicting Interests.

There shall at all times be a Trustee hereunder which shall be eligible to act as Trustee under TIA Section 310(a)(1) and shall have a combined capital and surplus of at least $50,000,000 or is a subsidiary of a corporation which shall be a Person that has a combined capital and surplus of at least $50,000,000 and which unconditionally guarantees the obligations of the Trustee hereunder. If such Trustee or Person publishes reports of condition at least annually, pursuant to law or the requirements of Federal, State, Territorial or District of Columbia supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such Trustee or Person shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. If at any time the Trustee shall cease to be eligible in accordance with the provisions of this Section, it shall resign immediately in the manner and with the effect hereinafter specified in this Article.

Section 608 Resignation and Removal; Appointment of Successor.

(a) No resignation or removal of the Trustee and no appointment of a successor Trustee pursuant to this Article shall become effective until the acceptance of appointment by the successor Trustee in accordance with the applicable requirements of Section 609.

(b) The Trustee may resign at any time with respect to the Securities of one or more series by giving written notice thereof to the Company. If an instrument of acceptance by a successor Trustee shall not have been delivered to the Trustee within 30 days after the giving of such notice of resignation, the resigning Trustee may petition any court of competent jurisdiction for the appointment of a successor Trustee.

(c) The Trustee may be removed at any time with respect to the Securities of any series by Act of the Holders of a majority in principal amount of the Outstanding Securities of such series delivered to the Trustee and to the Company if at any time:

(i) the Trustee shall fail to comply with the provisions of TIA Section 310(b) after written request therefor by the Company or by any Holder of a Security who has been a bona fide Holder of a Security for at least six months, or

(ii) the Trustee shall cease to be eligible under Section 607 and shall fail to resign after written request therefor by the Company or by any Holder of a Security who has been a bona fide Holder of a Security for at least six months, or

(iii) the Trustee shall become incapable of acting or shall be adjudged a bankrupt or insolvent or a receiver of the Trustee or of its property shall be appointed or any public officer shall take charge or control of the Trustee or of its property or affairs for the

48

purpose of rehabilitation, conservation or liquidation, then, in any such case, (i) the Company by or pursuant to a Board Resolution may remove the Trustee and appoint a successor Trustee with respect to all Securities, or (ii) subject to TIA Section 315(e), any Holder of a Security who has been a bona fide Holder of a Security for at least six months may, on behalf of himself and all others similarly situated, petition any court of competent jurisdiction for the removal of the Trustee with respect to all Securities and the appointment of a successor Trustee or Trustees.

(d) If the Trustee shall resign, be removed or become incapable of acting, or if a vacancy shall occur in the office of Trustee for any cause with respect to the Securities of one or more series, the Company, by or pursuant to a Board Resolution, shall promptly appoint a successor Trustee or Trustees with respect to the Securities of that or those series (it being understood that any such successor Trustee may be appointed with respect to the Securities of one or more or all of such series and that at any time there shall be only one Trustee with respect to the Securities of any particular series). If, within one year after such resignation, removal or incapability, or the occurrence of such vacancy, a successor Trustee with respect to the Securities of any series shall be appointed by Act of the Holders of a majority in principal amount of the Outstanding Securities of such series delivered to the Company and the retiring Trustee, the successor Trustee so appointed shall, forthwith upon its acceptance of such appointment, become the successor Trustee with respect to the Securities of such series and to that extent supersede the successor Trustee appointed by the Company. If no successor Trustee with respect to the Securities of any series shall have been so appointed by the Company or the Holders of Securities and accepted appointment in the manner hereinafter provided, any Holder of a Security who has been a bona fide Holder of a Security of such series for at least six months may, on behalf of himself and all others similarly situated, petition any court of competent jurisdiction for the appointment of a successor Trustee with respect to Securities of such series.

(e) The Company shall give notice of each resignation and each removal of the Trustee with respect to the Securities of any series and each appointment of a successor Trustee with respect to the Securities of any series in the manner provided for notices to the Holders of Securities in Section 106. Each notice shall include the name of the successor Trustee with respect to the Securities of such series and the address of its Corporate Trust Office.

Section 609 Acceptance of Appointment By Successor.

(a) In case of the appointment hereunder of a successor Trustee with respect to all Securities, every such successor Trustee shall execute, acknowledge and deliver to the Company and to the retiring Trustee an instrument accepting such appointment, and thereupon the resignation or removal of the retiring Trustee shall become effective and such successor Trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties of the retiring Trustee; but, on request of the Company or the successor Trustee, such retiring Trustee shall, upon payment of any amounts due and owing to it, its agents or counsel hereunder, execute and deliver an instrument transferring to such successor Trustee all the rights, powers and trusts of the retiring Trustee, and shall duly assign, transfer and deliver to such successor Trustee all property and money held by such retiring Trustee hereunder, subject nevertheless to its claim, if any, provided for in Section 606.

49

(b) In case of the appointment hereunder of a successor Trustee with respect to the Securities of one or more (but not all) series, the Company, the retiring Trustee and each successor Trustee with respect to the Securities of one or more series shall execute and deliver an indenture supplemental hereto, pursuant to Article Nine hereof, wherein each successor Trustee shall accept such appointment and which (1) shall contain such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, each successor Trustee all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those series to which the appointment of such successor Trustee relates, (2) if the retiring Trustee is not retiring with respect to all Securities, shall contain such provisions as shall be deemed necessary or desirable to confirm that all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those series as to which the retiring Trustee is not retiring shall continue to be vested in the retiring Trustee, and (3) shall add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee, it being understood that nothing herein or in such supplemental indenture shall constitute such Trustees co-trustees of the same trust and that each such Trustee shall be trustee of a trust or trusts hereunder separate and apart from any trust or trusts hereunder administered by any other such Trustee; and upon the execution and delivery of such supplemental indenture the resignation or removal of the retiring Trustee shall become effective to the extent provided therein and each such successor Trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those series to which the appointment of such successor Trustee relates; but, on request of the Company or any successor Trustee, such retiring Trustee shall, upon payment of any amounts due and owing to it, its agents or counsel hereunder duly assign, transfer and deliver to such successor Trustee all property and money held by such retiring Trustee hereunder with respect to the Securities of that or those series to which the appointment of such successor Trustee relates.

(c) Upon request of any such successor Trustee, the Company shall execute any and all instruments for more fully and certainly vesting in and confirming to such successor Trustee all such rights, powers and trusts referred to in paragraph (a) or (b) of this Section, as the case may be.

(d) No successor Trustee shall accept its appointment unless at the time of such acceptance such successor Trustee shall be qualified and eligible under this Article.

Section 610 Merger, Conversion, Consolidation or Succession to Business.

Any corporation into which the Trustee may be merged or converted or with which it may be consolidated, or any corporation resulting from any merger, conversion or consolidation to which the Trustee shall be a party, or any corporation succeeding to all or substantially all of the corporate trust business of the Trustee, shall be the successor of the Trustee hereunder, provided such corporation shall be otherwise qualified and eligible under this Article, without the execution or filing of any paper or any further act on the part of any of the parties hereto. In case any Securities or coupons shall have been authenticated, but not delivered, by the Trustee then in office, any successor by merger, conversion or consolidation to such authenticating Trustee may adopt such authentication and deliver the Securities or coupons so authenticated with the same effect as if such successor Trustee had itself authenticated such Securities or coupons. In case

50

any Securities or coupons shall not have been authenticated by such predecessor Trustee, any such successor Trustee may authenticate and deliver such Securities or coupons, in either its own name or that of its predecessor Trustee, with the full force and effect which this Indenture provides for the certificate of authentication of the Trustee.

Section 611 Appointment of Authenticating Agent.

At any time when any of the Securities remain Outstanding, the Trustee may appoint an Authenticating Agent or Agents with respect to one or more series of Securities which shall be authorized to act on behalf of the Trustee to authenticate Securities of such series issued upon exchange, registration of transfer or partial redemption or repayment thereof or pursuant to Section 306, and Securities so authenticated shall be entitled to the benefits of this Indenture and shall be valid and obligatory for all purposes as if authenticated by the Trustee hereunder. Any such appointment shall be evidenced by an instrument in writing signed by a Responsible Officer of the Trustee, a copy of which instrument shall be promptly furnished to the Company. Wherever reference is made in this Indenture to the authentication and delivery of Securities by the Trustee or the Trustee’s certificate of authentication, such reference shall be deemed to include authentication and delivery on behalf of the Trustee by an Authenticating Agent and a certificate of authentication executed on behalf of the Trustee by an Authenticating Agent. Each Authenticating Agent shall be reasonably acceptable to the Company and, except as may otherwise be provided pursuant to Section 301, shall at all times be a bank or trust company or corporation organized and doing business and in good standing under the laws of the United States of America or of any State or the District of Columbia, authorized under such laws to act as Authenticating Agent, having a combined capital and surplus of not less than $25,000,000 and subject to supervision or examination by Federal or State authorities. If such Authenticating Agent publishes reports of condition at least annually, pursuant to law or the requirements of the aforesaid supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such Authenticating Agent shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. In case at any time an Authenticating Agent shall cease to be eligible in accordance with the provisions of this Section, such Authenticating Agent shall resign immediately in the manner and with the effect specified in this Section.

Any corporation into which an Authenticating Agent may be merged or converted or with which it may be consolidated, or any corporation resulting from any merger, conversion or consolidation to which such Authenticating Agent shall be a party, or any corporation succeeding to the corporate agency or corporate trust business of an Authenticating Agent, shall continue to be an Authenticating Agent, provided such corporation shall be otherwise eligible under this Section, without the execution or filing of any paper or further act on the part of the Trustee or the Authenticating Agent.

An Authenticating Agent for any series of Securities may at any time resign by giving written notice of resignation to the Trustee for such series and to the Company. The Trustee for any series of Securities may at any time terminate the agency of an Authenticating Agent by giving written notice of termination to such Authenticating Agent and to the Company. Upon receiving such a notice of resignation or upon such a termination, or in case at any time such Authenticating Agent shall cease to be eligible in accordance with the provisions of this Section,

51

the Trustee for such series may appoint a successor Authenticating Agent which shall be reasonably acceptable to the Company and shall give notice of such appointment to all Holders of Securities of or within the series with respect to which such Authenticating Agent will serve in the manner set forth in Section 106. Any successor Authenticating Agent upon acceptance of its appointment hereunder shall become vested with all the rights, powers and duties of its predecessor hereunder, with like effect as if originally named as an Authenticating Agent herein. No successor Authenticating Agent shall be appointed unless eligible under the provisions of this Section.

The Company agrees to pay to each Authenticating Agent from time to time reasonable compensation including reimbursement of its reasonable expenses for its services under this Section.

52

If an appointment with respect to one or more series is made pursuant to this Section, the Securities of such series may have endorsed thereon, in addition to or in lieu of the Trustee’s certificate of authentication, an alternate certificate of authentication substantially in the following form:

This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture.

ARTICLE SEVEN

HOLDERS’ LISTS AND REPORTS BY TRUSTEE AND COMPANY

Section 701 Disclosure of Names and Addresses of Holders.

Every Holder of Securities or coupons, by receiving and holding the same, agrees with the Company and the Trustee that neither the Company nor the Trustee nor any Authenticating Agent nor any Paying Agent nor any Security Registrar nor any director, officer, agent or employee of any of them shall be held accountable by reason of the disclosure of any information as to the names and addresses of the Holders of Securities or coupons in accordance with TIA Section 312, regardless of the source from which such information was derived, and that the Trustee shall not be held accountable by reason of mailing any material pursuant to a request made under TIA Section 312(b).

Section 702 Reports by Trustee.

Within 60 days after March 15 of each year commencing with the first March 15 after the first issuance of Securities pursuant to this Indenture, the Trustee shall transmit by mail to all Holders of Securities as provided in TIA Section 313(c) a brief report dated as of such March 15 if and to the extent required by TIA Section 313(a).

Section 703 Reports by Company.

(a) The Company will:

(1) file with the Trustee, within 15 days after the Company is required to file the same with the Commission, copies of the annual reports and of the information, documents and other reports (or copies of such portions of any of the foregoing as the Commission may from time to time by rules and regulations prescribe) which the Company may be required to file with the Commission pursuant to Section 13 or Section 15(d) of the Exchange Act; or, if the Company is not required to file information, documents or reports pursuant to either of such Sections, then it will file with the Trustee and the Commission, in accordance with rules and

53

regulations prescribed from time to time by the Commission, such of the supplementary and periodic information, documents and reports which may be required pursuant to Section 13 of the Exchange Act in respect of a security listed and registered on a national securities exchange as may be prescribed from time to time in such rules and regulations;

(2) file with the Trustee and the Commission, in accordance with rules and regulations prescribed from time to time by the Commission, such additional information, documents and reports with respect to compliance by the Company with the conditions and covenants of this Indenture as may be required from time to time by such rules and regulations; and

(3) transmit by mail to the Holders of Securities, within 30 days after the filing thereof with the Trustee, in the manner and to the extent provided in TIA Section 313(c), such summaries of any information, documents and reports required to be filed by the Company pursuant to paragraphs (1) or (2) of this Section as may be required by rules and regulations prescribed from time to time by the Commission.

(b) Delivery of such reports, information and documents to the Trustee in accordance with Section 703(a) is for informational purposes only, and the Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on Officers’ Certificates). The Trustee is under no duty to examine such reports, information or documents to ensure compliance with the provisions of this Indenture or to ascertain the correctness or otherwise of the information or the statements contained therein. The Trustee is entitled to assume such compliance and correctness unless a Responsible Officer of the Trustee is informed otherwise.

Section 704 Company to Furnish Trustee Names and Addresses of Holders.

The Company will furnish or cause to be furnished to the Trustee:

(a) semi-annually, not later than 15 days after the Regular Record Date for interest for each series of Securities, a list, in such form as the Trustee may reasonably require, of the names and addresses of the Holders of Registered Securities of such series as of such Regular Record Date, or if there is no Regular Record Date for interest for such series of Securities, semi-annually, upon such dates as are set forth in the Board Resolution or indenture supplemental hereto authorizing such series, and

(b) at such other times as the Trustee may request in writing, within 30 days after the receipt by the Company of any such request, a list of similar form and content as of a date not more than 15 days prior to the time such list is furnished, provided, however, that, so long as the Trustee is the Security Registrar, no such lists shall be required to be furnished.

54

ARTICLE EIGHT

CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

Section 801 Consolidations and Mergers of Company and Sales, Leases and Conveyances Permitted Subject to Certain Conditions.

The Company may consolidate with, or sell, lease or convey all or substantially all of its assets to, or merge with or into any other Person, provided that in any such case, (i) either the Company shall be the continuing entity, or the successor (if other than the Company) entity shall be a Person organized and existing under the laws of the United States or a State thereof and such successor entity shall expressly assume the due and punctual payment of the principal of (and premium or Make-Whole Amount, if any) and any interest (including all Additional Amounts, if any, payable pursuant to Section 1007) on all of the Securities, according to their tenor, and the due and punctual performance and observance of all of the covenants and conditions of this Indenture to be performed by the Company by supplemental indenture, complying with Article Nine hereof, satisfactory to the Trustee, executed and delivered to the Trustee by such Person and (ii) immediately after giving effect to such transaction and treating any indebtedness which becomes an obligation of the Company or any Subsidiary as a result thereof as having been incurred by the Company or such Subsidiary at the time of such transaction, no Event of Default, and no event which, after notice or the lapse of time, or both, would become an Event of Default, shall have occurred and be continuing.

Section 802 Rights and Duties of Successor Corporation.

In case of any such consolidation, merger, sale, lease or conveyance and upon any such assumption by the successor entity, such successor entity shall succeed to and be substituted for the Company, with the same effect as if it had been named herein as the party of the first part, and the predecessor entity, except in the event of a lease, shall be relieved of any further obligation under this Indenture and the Securities. Such successor entity thereupon may cause to be signed, and may issue either in its own name or in the name of the Company, any or all of the Securities issuable hereunder which theretofore shall not have been signed by the Company and delivered to the Trustee; and, upon the order of such successor entity, instead of the Company, and subject to all the terms, conditions and limitations in this Indenture prescribed, the Trustee shall authenticate and shall deliver any Securities which previously shall have been signed and delivered by the officers of the Company to the Trustee for authentication, and any Securities which such successor entity thereafter shall cause to be signed and delivered to the Trustee for that purpose. All the Securities so issued shall in all respects have the same legal rank and benefit under this Indenture as the Securities theretofore or thereafter issued in accordance with the terms of this Indenture as though all of such Securities had been issued at the date of the execution hereof.

In case of any such consolidation, merger, sale, lease or conveyance, such changes in phraseology and form (but not in substance) may be made in the Securities thereafter to be issued as may be appropriate.

55

Section 803 Officers’ Certificate and Opinion of Counsel.

Any consolidation, merger, sale, lease or conveyance permitted under Section 801 is also subject to the condition that the Trustee receive an Officers’ Certificate and an Opinion of Counsel to the effect that any such consolidation, merger, sale, lease or conveyance, and the assumption by any successor entity, complies with the provisions of this Article and that all conditions precedent herein provided for relating to such transaction have been complied with.

ARTICLE NINE

SUPPLEMENTAL INDENTURES

Section 901 Supplemental Indentures Without Consent of Holders.

Without the consent of any Holders of Securities or coupons, the Company, when authorized by or pursuant to a Board Resolution, and the Trustee, at any time and from time to time, may enter into one or more indentures supplemental hereto, in form satisfactory to the Trustee, for any of the following purposes:

(1) to evidence the succession of another Person to the Company and the assumption by any such successor of the covenants of the Company herein and in the Securities contained; or

(2) to add to the covenants of the Company for the benefit of the Holders of all or any series of Securities (and, if such covenants are to be for the benefit of less than all series of Securities, stating that such covenants are expressly being included solely for the benefit of such series) or to surrender any right or power herein conferred upon the Company; or

(3) to add any additional Events of Default for the benefit of the Holders of all or any series of Securities (and if such Events of Default are to be for the benefit of less than all series of Securities, stating that such Events of Default are expressly being included solely for the benefit of such series); provided, however, that in respect of any such additional Events of Default such supplemental indenture may provide for a particular period of grace after default (which period may be shorter or longer than that allowed in the case of other defaults) or may provide for an immediate enforcement upon such default or may limit the remedies available to the Trustee upon such default or may limit the right of the Holders of a majority in aggregate principal amount of that or those series of Securities to which such additional Events of Default apply to waive such default; or

(4) to add to or change any of the provisions of this Indenture to provide that Bearer Securities may be registrable as to principal, to change or eliminate any restrictions on the payment of principal of or any premium, Make-Whole Amount or Interest on Bearer Securities, to permit Bearer Securities to be issued in exchange for Registered Securities, to permit Bearer Securities to be issued in exchange for Bearer Securities of other authorized denominations or to permit or facilitate the issuance of Securities in uncertificated form, provided that any such action shall not adversely affect the interests of the Holders of Securities of any series or any related coupons in any material respect; or

56

(5) to add to, change or eliminate any of the provisions of this Indenture in respect of any series of Securities, provided that any such addition, change or elimination shall (i) neither (A) apply to any Security of any series created prior to the execution of such supplemental indenture and entitled to the benefit of such provision, nor (B) modify the rights of the Holder of any such Security with respect to such provision; or (ii) become effective only when there is no Security Outstanding; or

(6) to secure the Securities; or

(7) to establish the form or terms of Securities of any series and any related coupons as permitted by Section 201 and Section 301, including (i) the provisions and procedures relating to Securities convertible into or exchangeable for other securities or property of the Company or (ii) the addition or modification of any of the provisions of this Indenture as shall be necessary or desirable to provide for or facilitate the guarantee of such Securities by one or more Guarantors; or

(8) to evidence and provide for the acceptance of appointment hereunder by a successor Trustee with respect to the Securities of one or more series and to add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee; or

(9) to make provision for the subordination of Securities of a series or to make provision with respect to the conversion or exchange rights of Holders pursuant to the requirements of Article Sixteen, including providing for the conversion or exchange of the Securities into any security or property of the Company or any other issuer; or

(10) to cure any ambiguity, to correct or supplement any provision herein which may be defective or inconsistent with any other provision herein, or to make any other provisions with respect to matters or questions arising under this Indenture which shall not be inconsistent with the provisions of this Indenture or to make any other changes, provided that in each case, such provisions shall not adversely affect the interests of the Holders of Securities of any series or any related coupons in any material respect; or

(11) to close this Indenture with respect to the authentication and delivery of additional series of Securities or to qualify, or maintain qualification of, this Indenture under the TIA; or

(12) to add and/or remove one or more Guarantors; provided, that no such amendment shall remove any Guarantor that has guaranteed any Securities Outstanding hereunder; or

(13) to supplement any of the provisions of this Indenture to such extent as shall be necessary to permit or facilitate the defeasance and discharge of any series of Securities pursuant to Section 401, Section 1402 and Section 1403; provided in each case that any such action shall not adversely affect the interests of the Holders of Securities of such series and any related coupons or any other series of Securities in any material respect.

57

Section 902 Supplemental Indentures With Consent of Holders.

With the consent of the Holders of not less than a majority in principal amount of all Outstanding Securities affected by such supplemental indenture, by Act of said Holders delivered to the Company and the Trustee, the Company, when authorized by or pursuant to a Board Resolution, and the Trustee may enter into an indenture or indentures supplemental hereto for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of this Indenture or of modifying in any manner the rights of the Holders of Securities and any related coupons under this Indenture; provided, however, that no such supplemental indenture shall, without the consent of the Holder of each Outstanding Security affected thereby:

(1) change the Stated Maturity of the principal of (or premium or Make-Whole Amount, if any, on) or any installment of principal of or interest on, any Security; or reduce the principal amount thereof or the rate or amount of interest thereon or any Additional Amounts payable in respect thereof, or any premium or Make-Whole Amount payable upon the redemption thereof, or change any obligation of the Company to pay Additional Amounts pursuant to Section 1007 (except as contemplated by Section 801(1) and permitted by Section 901(1)), or reduce the amount of the principal of an Original Issue Discount Security or Make-Whole Amount, if any, that would be due and payable upon a declaration of acceleration of the Maturity thereof pursuant to Section 502 or the amount thereof provable in bankruptcy pursuant to Section 504, or adversely affect any right of repayment at the option of the Holder of any Security, or change any Place of Payment where, or the currency or currencies, currency unit or units or composite currency or currencies in which, the principal of any Security or any premium or Make-Whole Amount or any Additional Amounts payable in respect thereof or the interest thereon is payable, or impair the right to institute suit for the enforcement of any such payment on or after the Stated Maturity thereof (or, in the case of redemption or repayment at the option of the Holder, on or after the Redemption Date or the Repayment Date, as the case may be);

(2) reduce the percentage in principal amount of the Outstanding Securities of any series, the consent of whose Holders is required for any such supplemental indenture, or the consent of whose Holders is required for any waiver with respect to such series (or compliance with certain provisions of this Indenture or certain defaults hereunder and their consequences) provided for in this Indenture, or reduce the requirements of Section 1504 for quorum or voting;

(3) modify any of the provisions of this Section, Section 513 or Section 1008, except to increase the required percentage to effect such action or to provide that certain other provisions of this Indenture cannot be modified or waived without the consent of the Holder of each Outstanding Security affected thereby;

(4) make any change that adversely affects the right to convert or exchange any Security as provided in Article Sixteen or pursuant to Section 301 (except as permitted by Section 901(9)) or decrease the conversion or exchange rate or increase the conversion or exchange price of any such Security; or

(5) modify the Guarantees in any manner adverse to the Holders or make any amendment referred to in the proviso to Section 901(12).

58

It shall not be necessary for any Act of Holders under this Section to approve the particular form of any proposed supplemental indenture, but it shall be sufficient if such Act shall approve the substance thereof.

A supplemental indenture which changes or eliminates any covenant or other provision of this Indenture which has expressly been included for the benefit of one or more particular series of Securities, or which modifies the rights of the Holders of Securities of such series with respect to such covenant or other provision, shall be deemed not to affect the rights under this Indenture of the Holders of Securities of any other series.

Section 903 Execution of Supplemental Indentures.

In executing, or accepting the additional trusts created by, any supplemental indenture permitted by this Article or the modification thereby of the trusts created by this Indenture, the Trustee shall be entitled to receive, and shall be fully protected in relying upon, an Officers’ Certificate and Opinion of Counsel stating that the execution of such supplemental indenture is authorized or permitted by this Indenture and that all conditions precedent to the execution of such supplemental indenture have been complied with. The Trustee may, but shall not be obligated to, enter into any such supplemental indenture which affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise.

Section 904 Effect of Supplemental Indentures.

Upon the execution of any supplemental indenture under this Article, this Indenture shall be modified in accordance therewith, and such supplemental indenture shall form a part of this Indenture for all purposes; and every Holder of Securities theretofore or thereafter authenticated and delivered hereunder and of any coupon appertaining thereto shall be bound thereby.

Section 905 Conformity with Trust Indenture Act.

Every supplemental indenture executed pursuant to this Article shall conform to the requirements of the Trust Indenture Act as then in effect.

Section 906 Reference in Securities to Supplemental Indentures.

Securities of any series authenticated and delivered after the execution of any supplemental indenture pursuant to this Article may, and shall if required by the Trustee, bear a notation in form approved by the Trustee as to any matter provided for in such supplemental indenture. If the Company shall so determine, new Securities of any series so modified as to conform, in the opinion of the Trustee and the Company, to any such supplemental indenture may be prepared and executed by the Company and authenticated and delivered (which delivery, in the case of Bearer Securities, shall occur only outside the United States) by the Trustee in exchange for Outstanding Securities of such series.

Section 907 Notice of Supplemental Indentures.

Promptly after the execution by the Company and the Trustee of any supplemental indenture pursuant to the provisions of Section 902, the Company shall give notice thereof to the Holders of each Outstanding Security affected, in the manner provided for in Section 106, setting forth in general terms the substance of such supplemental indenture.

59

ARTICLE TEN

COVENANTS

Section 1001 Payment of Principal, Premium or Make-Whole Amount, if any, Interest and Additional Amounts.

The Company covenants and agrees for the benefit of the Holders of each series of Securities that it will duly and punctually pay the principal of (and premium or Make-Whole Amount, if any) and interest on and any Additional Amounts payable in respect of the Securities of that series in accordance with the terms of such series of Securities, any coupons appertaining thereto and this Indenture. Unless otherwise specified as contemplated by Section 301 with respect to any series of Securities, any interest due on and any Additional Amounts payable in respect of Bearer Securities on or before Maturity, other than Additional Amounts, if any, payable as provided in Section 1007 in respect of principal of (or premium or Make-Whole Amount, if any, on) such a Security, shall be payable only upon presentation and surrender of the several coupons for such interest installments as are evidenced thereby as they severally mature. Unless otherwise specified with respect to Securities of any series pursuant to Section 301, at the option of the Company, all payments of principal may be paid by check to the registered Holder of the Registered Security or other person entitled thereto against surrender of such Security.

Section 1002 Maintenance of Office or Agency.

If Securities of a series are issuable only as Registered Securities, the Company shall maintain in each Place of Payment for any series of Securities an office or agency where Securities of that series may be presented or surrendered for payment or conversion, where Securities of that series may be surrendered for registration of transfer or exchange , where Securities of that series may be converted or exchanged in accordance with Article Sixteen and where notices and demands to or upon the Company in respect of the Securities of that series and this Indenture may be served. If Securities of a series are issuable as Bearer Securities, the Company will maintain: (A) in the Borough of Manhattan, The City of New York, an office or agency where any Registered Securities of that series may be presented or surrendered for payment or conversion, where any Registered Securities of that series may be surrendered for exchange, where notices and demands to or upon the Company in respect of the Securities of that series and this Indenture may be served and where Bearer Securities of that series and related coupons may be presented or surrendered for payment or conversion in the circumstances described in the following paragraph (and not otherwise); (B) subject to any laws or regulations applicable thereto, in a Place of Payment for that series which is located outside the United States, an office or agency where Securities of that series and related coupons may be presented and surrendered for payment (including payment of any Additional Amounts payable on Securities of that series pursuant to Section 1007) or conversion; provided, however, that if the Securities of that series are listed on the Luxembourg Stock Exchange, The International Stock Exchange or any other stock exchange located outside the United States and such stock exchange shall so require, the Company will maintain a Paying Agent for the Securities of that series in Luxembourg, London or any other required city located outside the United States, as the case

60

may be, so long as the Securities of that series are listed on such exchange; and (C) subject to any laws or regulations applicable thereto, in each Place of Payment for that series located outside the United States an office or agency where any Securities of that series may be surrendered for registration of transfer, where Securities of that series may be surrendered for exchange and where notices and demands to or upon the Company in respect of the Securities of that series and this Indenture may be served. The Company will give prompt written notice to the Trustee of the location, and any change in the location, of each such office or agency. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee, except that Bearer Securities of that series and the related coupons may be presented and surrendered for payment (including payment of any Additional Amounts payable on Bearer Securities of that series pursuant to Section 1007) at the offices specified in the Security, in London, England, and the Company hereby appoints the same as its agent to receive such respective presentations, surrenders, notices and demands.

Unless otherwise specified with respect to any Securities pursuant to Section 301, no payment of principal, premium, Make-Whole Amount or interest on or Additional Amounts in respect of Bearer Securities shall be made at any office or agency of the Company in the United States or by check mailed to any address in the United States or by transfer to an account maintained with a bank located in the United States; provided, however, that, if the Securities of a series are payable in Dollars, payment of principal of and any premium and interest on any Bearer Security (including any Additional Amounts or Make-Whole Amount payable on Securities of such series pursuant to Section 1007) shall be made at the office of the Company’s Paying Agent in the Borough of Manhattan, The City of New York, if (but only if) payment in Dollars of the full amount of such principal, premium, interest, Additional Amounts or Make-Whole Amount, as the case may be, at all offices or agencies outside the United States maintained for the purpose by the Company in accordance with this Indenture, is illegal or effectively precluded by exchange controls or other similar restrictions.

The Company may from time to time designate one or more other offices or agencies where the Securities of one or more series and related coupons, if any, may be presented or surrendered for any or all of such purposes, and may from time to time rescind such designations; provided, however, that no such designation or rescission shall in any manner relieve the Company of its obligation to maintain an office or agency in accordance with the requirements set forth above for Securities of any series for such purposes. The Company will give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.

Unless otherwise specified with respect to any Securities pursuant to Section 301, if and so long as the Securities of any series (i) are denominated in a Foreign Currency or (ii) may be payable in a Foreign Currency, or so long as it is required under any other provision of the Indenture, then the Company will maintain with respect to each such series of Securities, or as so required, at least one exchange rate agent.

61

Section 1003 Money for Securities Payments to Be Held in Trust.

If the Company shall at any time act as its own Paying Agent with respect to any series of any Securities and any related coupons, it will, on or before each due date of the principal of (and premium or Make-Whole Amount, if any), or interest on or Additional Amounts in respect of, any of the Securities of that series, segregate and hold in trust for the benefit of the Persons entitled thereto a sum in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) sufficient to pay the principal (and premium or Make-Whole Amount, if any) or interest or Additional Amounts so becoming due until such sums shall be paid to such Persons or otherwise disposed of as herein provided, and will promptly notify the Trustee, in writing, of its action or failure so to act.

Whenever the Company shall have one or more Paying Agents for any series of Securities and any related coupons, it will, on or before each due date of the principal of (and premium or Make-Whole Amount, if any), or interest on or Additional Amounts in respect of, any Securities of that series, deposit with a Paying Agent a sum (in the currency or currencies, currency unit or units or composite currency or currencies described in the preceding paragraph) sufficient to pay the principal (and premium or Make-Whole Amount, if any) or interest or Additional Amounts, so becoming due, such sum to be held in trust for the benefit of the Persons entitled to such principal, premium, Make-Whole Amount or interest or Additional Amounts and (unless such Paying Agent is the Trustee) the Company will promptly notify the Trustee, in writing, of its action or failure so to act.

The Company will cause each Paying Agent other than the Trustee to execute and deliver to the Trustee an instrument in which such Paying Agent shall agree with the Trustee, subject to the provisions of this Section, that such Paying Agent will:

(1) hold all sums held by it for the payment of principal of (and premium or Make-Whole Amount, if any) or interest on Securities or Additional Amounts in trust for the benefit of the Persons entitled thereto until such sums shall be paid to such Persons or otherwise disposed of as herein provided;

(2) give the Trustee notice of any default by the Company (or any other obligor upon the Securities) in the making of any such payment of principal (and premium or Make-Whole Amount, if any) or interest or Additional Amounts; and

(3) at any time during the continuance of any such default upon the written request of the Trustee, forthwith pay to the Trustee all sums so held in trust by such Paying Agent.

The Company may at any time, for the purpose of obtaining the satisfaction and discharge of this Indenture or for any other purpose, pay, or by Company Order direct any Paying Agent to pay, to the Trustee all sums held in trust by the Company or such Paying Agent, such sums to be held by the Trustee upon the same trusts as those upon which such sums were held by the Company or such Paying Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying Agent shall be released from all further liability with respect to such sums.

62

Except as otherwise provided in the Securities of any series, any money deposited with the Trustee or any Paying Agent, or then held by the Company, in trust for the payment of the principal of (and premium or Make-Whole Amount, if any) or interest on, or any Additional Amounts in respect of, any Security of any series and remaining unclaimed for two years after such principal (and premium or Make-Whole Amount, if any), interest or Additional Amounts has become due and payable shall be paid to the Company upon Company Request or (if then held by the Company) shall be discharged from such trust; and the Holder of such Security shall thereafter, as an unsecured general creditor, look only to the Company for payment of such principal of (and premium or Make-Whole Amount, if any) or interest on, or any Additional Amounts in respect of, any Security, without interest thereon, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Company as trustee thereof, shall thereupon cease; provided, however, that the Trustee or such Paying Agent, before being required to make any such repayment, may at the expense of the Company cause to be published once, in an Authorized Newspaper, notice that such money remains unclaimed and that, after a date specified therein, which shall not be less than 30 days from the date of such publication, any unclaimed balance of such money then remaining will be repaid to the Company.

Section 1004 (Omitted)

Section 1005 Provision of Financial Information.

Whether or not the Company is subject to Section 13 or 15(d) of the Exchange Act, the Company will, to the extent permitted under the Exchange Act, file with the Commission the annual reports, quarterly reports and other documents which the Company would have been required to file with the Commission pursuant to such Section 13 or 15(d) (the “ Financial Statements ”) if the Company were so subject, such documents to be filed with the Commission on or prior to the respective dates (the “ Required Filing Dates ”) by which the Company would have been required so to file such documents if the Company were so subject.

The Company will also in any event (x) within 15 days of each Required Filing Date (i) transmit by mail to all Holders, as their names and addresses appear in the Security Register, without cost to such Holders, copies of the annual reports and quarterly reports which the Company would have been required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act if the Company were subject to such Sections, and (ii) file with the Trustee copies of annual reports, quarterly reports and other documents which the Company would have been required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act if the Company were subject to such Sections, and (y) if filing such documents by the Company with the Commission is not permitted under the Exchange Act, promptly upon written request and payment of the reasonable cost of duplication and delivery, supply copies of such documents to any prospective Holder.

Section 1006 Statement as to Compliance.

The Company and the Guarantors will deliver to the Trustee within 120 days after the end of each fiscal year, a brief certificate from the principal executive officer, principal financial officer or principal accounting officer of each of the Company and each Guarantor as to his or

63

her knowledge of the Company’s and each Guarantor’s compliance with all conditions and covenants under this Indenture and, in the event of any noncompliance, specifying such noncompliance and the nature and status thereof. For purposes of this Section 1006, such compliance shall be determined without regard to any period of grace or requirement of notice under this Indenture.

Section 1007 Additional Amounts.

If any Securities of a series provide for the payment of Additional Amounts, the Company will pay to the Holder of any Security of such series or any coupon appertaining thereto Additional Amounts as may be specified as contemplated by Section 301. Whenever in this Indenture there is mentioned, in any context except in the case of Section 502(1), the payment of the principal of or any premium, Make-Whole Amount or interest on, or in respect of, any Security of any series or payment of any related coupon or the net proceeds received on the sale or exchange of any Security of any series, such mention shall be deemed to include mention of the payment of Additional Amounts provided by the terms of such series established pursuant to Section 301 to the extent that, in such context, Additional Amounts are, were or would be payable in respect thereof pursuant to such terms and express mention of the payment of Additional Amounts (if applicable) in any provisions hereof shall not be construed as excluding Additional Amounts in those provisions hereof where such express mention is not made.

Except as otherwise specified as contemplated by Section 301, if the Securities of a series provide for the payment of Additional Amounts, at least 10 days prior to the first Interest Payment Date with respect to that series of Securities (or if the Securities of that series will not bear interest prior to Maturity, the first day on which a payment of principal and any premium is made), and at least 10 days prior to each date of payment of principal and any premium or Make-Whole Amount or interest if there has been any change with respect to the matters set forth in the below-mentioned Officers’ Certificate, the Company will furnish the Trustee and the Company’s principal Paying Agent or Paying Agents, if other than the Trustee, with an Officers’ Certificate instructing the Trustee and such Paying Agent or Paying Agents whether such payment of principal of and any premium or interest on the Securities of that series shall be made to Holders of Securities of that series or any related coupons who are not United States persons without withholding for or on account of any tax, assessment or other governmental charge described in the Securities of or within the series. If any such withholding shall be required, then such Officers’ Certificate shall specify by country the amount, if any, required to be withheld on such payments to such Holders of Securities of that series or related coupons and the Company will pay to the Trustee or such Paying Agent the Additional Amounts, if any, required by the terms of such Securities. In the event that the Trustee or any Paying Agent, as the case may be, shall not so receive the abovementioned certificate, then the Trustee or such Paying Agent shall be entitled (i) to assume that no such withholding or deduction is required with respect to any payment of principal or interest with respect to any Securities of a series or related coupons until it shall have received a certificate advising otherwise and (ii) to make all payments of principal and interest with respect to the Securities of a series or related coupons without withholding or deductions until otherwise advised. The Company covenants to indemnify the Trustee and any Paying Agent for, and to hold them harmless against, any loss, liability or expense reasonably incurred without gross negligence or bad faith on their part arising out of or in connection with actions taken or omitted by any of them in reliance on any Officers’ Certificate furnished pursuant to this Section or in reliance on the Company’s not furnishing such an Officers’ Certificate.

64

Section 1008 Waiver of Certain Covenants.

The Company and the Guarantors may omit in any particular instance to comply with any term, provision or condition set forth in Section 1005 and with any other term, provision or condition with respect to the Securities of any series specified in accordance with Section 301 (except any such term, provision or condition which could not be amended without the consent of all Holders of Securities of such series pursuant to Section 902), if before or after the time for such compliance the Holders of at least a majority in principal amount of all Outstanding Securities of such series, by Act of such Holders, either waive such compliance in such instance or generally waive compliance with such covenant or condition, but no such waiver shall extend to or affect such covenant or condition except to the extent so expressly waived, and, until such waiver shall become effective, the obligations of the Company , the Guarantors and the duties of the Trustee in respect of any such term, provision or condition shall remain in full force and effect.

ARTICLE ELEVEN

REDEMPTION OF SECURITIES

Section 1101 Applicability of Article.

Securities of any series which are redeemable before their Stated Maturity shall be redeemable in accordance with their terms and (except as otherwise specified as contemplated by Section 301 for Securities of any series) in accordance with this Article.

Section 1102 Election to Redeem; Notice to Trustee.

The election of the Company to redeem any Securities shall be evidenced by or pursuant to a Board Resolution. In case of any redemption at the election of the Company of less than all of the Securities of any series, the Company shall, at least 60 days prior to the giving of the notice of redemption in Section 1104 (unless a shorter notice shall be satisfactory to the Trustee), notify the Trustee of such Redemption Date and of the principal amount of Securities of such series to be redeemed. The Company shall deliver an Officers’ Certificate and Opinion of Counsel to the Trustee on or prior to each Redemption Date.

Section 1103 Selection by Trustee of Securities to Be Redeemed.

If less than all the Securities of any series issued on the same day with the same terms are to be redeemed, the particular Securities to be redeemed shall be selected not more than 60 days prior to the Redemption Date by the Trustee, from the Outstanding Securities of such series issued on such date with the same terms not previously called for redemption, by such method as the Trustee shall deem fair and appropriate, subject to applicable law, and which may provide for the selection for redemption of portions (equal to the minimum authorized denomination for Securities of that series or any integral multiple thereof) of the principal amount of Securities of such series of a denomination larger than the minimum authorized denomination for Securities of that series.

65

The Trustee shall promptly notify the Company and the Security Registrar (if other than itself) in writing of the Securities selected for redemption and, in the case of any Securities selected for partial redemption, the principal amount thereof to be redeemed.

For all purposes of this Indenture, unless the context otherwise requires, all provisions relating to the redemption of Securities shall relate, in the case of any Security redeemed or to be redeemed only in part, to the portion of the principal amount of such Security which has been or is to be redeemed.

Section 1104 Notice of Redemption.

Notice of redemption shall be given in the manner provided in Section 106, not less than 30 days nor more than 60 days prior to the Redemption Date, unless a shorter period is specified by the terms of such series established pursuant to Section 301, to each Holder of Securities to be redeemed, but failure to give such notice in the manner herein provided to the Holder of any Security designated for redemption as a whole or in part, or any defect in the notice to any such Holder, shall not affect the validity of the proceedings for the redemption of any other such Security or portion thereof.

Any notice that is mailed to the Holders of Registered Securities in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the Holder receives the notice.

All notices of redemption shall state:

(1) the Redemption Date;

(2) the Redemption Price, accrued interest to the Redemption Date payable as provided in Section 1106, if any, and Additional Amounts, if any;

(3) if less than all Outstanding Securities of any series are to be redeemed, the identification (and, in the case of partial redemption, the principal amount) of the particular Security or Securities to be redeemed;

(4) in case any Security is to be redeemed in part only, that on and after the Redemption Date, upon surrender of such Security, the holder will receive, without a charge, a new Security or Securities of authorized denominations for the principal amount thereof remaining unredeemed;

(5) that on the Redemption Date the Redemption Price and accrued interest to the Redemption Date payable as provided in Section 1106, if any, will become due and payable upon each such Security, or the portion thereof, to be redeemed and, if applicable, that interest thereon shall cease to accrue on and after said date;

66

(6) the Place or Places of Payment (which, in the case of Bearer Securities, shall be outside the United States) where such Securities, together in the case of Bearer Securities with all coupons appertaining thereto, if any, maturing after the Redemption Date, are to be surrendered for payment of the Redemption Price and accrued interest, if any, or for conversion;

(7) that the redemption is for a sinking fund, if such is the case;

(8) that, unless otherwise specified in such notice, Bearer Securities of any series, if any, surrendered for redemption must be accompanied by all coupons maturing subsequent to the date fixed for redemption or the amount of any such missing coupon or coupons will be deducted from the Redemption Price, unless security or indemnity satisfactory to the Company, the Trustee for such series and any Paying Agent is furnished;

(9) if Bearer Securities of any series are to be redeemed and any Registered Securities of such series are not to be redeemed, and if such Bearer Securities may be exchanged for Registered Securities not subject to the redemption on this Redemption Date pursuant to Section 305 or otherwise, the last date, as determined by the Company, on which such exchanges may be made;

(10) the CUSIP number of such Security, if any, provided that neither the Company nor the Trustee shall have any responsibility for any such CUSIP number; and

(11) if applicable, that a Holder of Securities who desires to convert Securities to be redeemed must satisfy the requirements for conversion contained in such Securities, the then existing conversion price or rate and the date and time when the option to convert shall expire.

Notice of redemption of Securities to be redeemed shall be prepared by the Company and shall be given by the Company or, at the Company’s request, by the Trustee in the name and at the expense of the Company.

Section 1105 Deposit of Redemption Price.

On or prior to any Redemption Date, the Company shall deposit with the Trustee or with a Paying Agent (or, if the Company is acting as its own Paying Agent, which it may not do in the case of a sinking fund payment under Article Twelve, segregate and hold in trust as provided in Section 1003) an amount of money in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) sufficient to pay on the Redemption Date the Redemption Price of, and (except if the Redemption Date shall be an Interest Payment Date) accrued interest on, all the Securities or portions thereof which are to be redeemed on that date.

67

Section 1106 Securities Payable on Redemption Date.

Notice of redemption having been given as aforesaid, the Securities so to be redeemed shall, on the Redemption Date, become due and payable at the Redemption Price therein specified in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) (together with accrued interest, if any, to the Redemption Date), and from and after such date (unless the Company shall default in the payment of the Redemption Price and accrued interest) such Securities shall, if the same were interest-bearing, cease to bear interest and the coupons for such interest appertaining to any Bearer Securities so to be redeemed, except to the extent provided below, shall be void. Upon surrender of any such Security for redemption in accordance with said notice, together with all coupons, if any, appertaining thereto maturing after the Redemption Date, such Security shall be paid by the Company at the Redemption Price, together with accrued interest, if any, to the Redemption Date; provided, however, that installments of interest on Bearer Securities whose Stated Maturity is on or prior to the Redemption Date shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 1002) and, unless otherwise specified as contemplated by Section 301, only upon presentation and surrender of coupons for such interest; and provided further that except as otherwise provided with respect to Securities convertible into Capital Stock, installments of interest on Registered Securities whose Stated Maturity is on or prior to the Redemption Date shall be payable to the Holders of such Securities, or one or more Predecessor Securities, registered as such at the close of business on the relevant record dates according to their terms and the provisions of Section 307.

If any Bearer Security surrendered for redemption shall not be accompanied by all appurtenant coupons maturing after the Redemption Date, such Security may be paid after deducting from the Redemption Price an amount equal to the face amount of all such missing coupons, or the surrender of such missing coupon or coupons may be waived by the Company and the Trustee if there be furnished to them such security or indemnity as they may require to save each of them and any Paying Agent harmless. If thereafter the Holder of such Security shall surrender to the Trustee or any Paying Agent any such missing coupon in respect of which a deduction shall have been made from the Redemption Price, such Holder shall be entitled to receive the amount so deducted; provided, however, that interest represented by coupons shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 1002) and, unless otherwise specified as contemplated by Section 301, only upon presentation and surrender of those coupons. If any Security called for redemption shall not be so paid upon surrender thereof for redemption, the principal, (and premium or Make-Whole Amount, if any) shall, until paid, bear interest from the Redemption Date at the rate borne by the Security.

Section 1107 Securities Redeemed in Part.

Any Security which is to be redeemed only in part (pursuant to the provisions of this Article or of Article Twelve) shall be surrendered at a Place of Payment therefor (with, if the Company or the Trustee so requires, due endorsement by, or a written instrument of transfer in form satisfactory to the Company and the Trustee duly executed by, the Holder thereof or his attorney duly authorized in writing) and the Company shall execute and the Trustee shall

68

authenticate and deliver to the Holder of such Security without service charge a new Security or Securities of the same series, of any authorized denomination as requested by such Holder in aggregate principal amount equal to and in exchange for the unredeemed portion of the principal of the Security so surrendered.

ARTICLE TWELVE

SINKING FUNDS

Section 1201 Applicability of Article.

The provisions of this Article shall be applicable to any sinking fund for the retirement of Securities of a series except as otherwise specified as contemplated by Section 301 for Securities of such series.

The minimum amount of any sinking fund payment provided for by the terms of Securities of any series is herein referred to as a “ mandatory sinking fund payment, ” and any payment in excess of such minimum amount provided for by the terms of such Securities of any series is herein referred to as an “ optional sinking fund payment. ” If provided for by the terms of any Securities of any series, the cash amount of any mandatory sinking fund payment may be subject to reduction as provided in Section 1202. Each sinking fund payment shall be applied to the redemption of Securities of any series as provided for by the terms of Securities of such series.

Section 1202 Satisfaction of Sinking Fund Payments with Securities.

The Company may, in satisfaction of all or any part of any mandatory sinking fund payment with respect to the Securities of a series, (1) deliver Outstanding Securities of such series (other than any previously called for redemption) together in the case of any Bearer Securities of such series with all unmatured coupons appertaining thereto and (2) apply as a credit Securities of such series which have been redeemed either at the election of the Company pursuant to the terms of such Securities or through the application of permitted optional sinking fund payments pursuant to the terms of such Securities, as provided for by the terms of such Securities, or which have otherwise been acquired by the Company; provided that such Securities so delivered or applied as a credit have not been previously so credited. Such Securities shall be received and credited for such purpose by the Trustee at the applicable Redemption Price specified in such Securities for redemption through operation of the sinking fund and the amount of such mandatory sinking fund payment shall be reduced accordingly.

Section 1203 Redemption of Securities for Sinking Fund.

Not less than 60 days prior to each sinking fund payment date for Securities of any series, the Company will deliver to the Trustee an Officers’ Certificate specifying the amount of the next ensuing mandatory sinking fund payment for that series pursuant to the terms of that series, the portion thereof, if any, which is to be satisfied by payment of cash in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) and the portion thereof, if any, which is to be satisfied by delivering and crediting

69

Securities of that series pursuant to Section 1202, and the optional amount, if any, to be added in cash to the next ensuing mandatory sinking fund payment, and will also deliver to the Trustee any Securities to be so delivered and credited. If such Officers’ Certificate shall specify an optional amount to be added in cash to the next ensuing mandatory sinking fund payment, the Company shall thereupon be obligated to pay the amount therein specified. Not less than 30 days before each such sinking fund payment date the Trustee shall select the Securities to be redeemed upon such sinking fund payment date in the manner specified in Section 1103 and cause notice of the redemption thereof, which shall be prepared by the Company, to be given in the name of and at the expense of the Company in the manner provided in Section 1104. Such notice having been duly given, the redemption of such Securities shall be made upon the terms and in the manner stated in Section 1106 and Section 1107.

ARTICLE THIRTEEN

REPAYMENT AT THE OPTION OF HOLDERS

Section 1301 Applicability of Article.

Repayment of Securities of any series before their Stated Maturity at the option of Holders thereof shall be made in accordance with the terms of such Securities, if any, and (except as otherwise specified by the terms of such series established pursuant to Section 301) in accordance with this Article.

Section 1302 Repayment of Securities.

Securities of any series subject to repayment in whole or in part at the option of the Holders thereof will, unless otherwise provided in the terms of such Securities, be repaid at a price equal to the principal amount thereon, together with interest, if any, thereof accrued to the Repayment Date specified in or pursuant to the terms of such Securities. The Company covenants that on or before the Repayment Date it will deposit with the Trustee or with a Paying Agent (or, if the Company is acting as its own Paying Agent, segregate and hold in trust as provided in Section 1003) an amount of money in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) sufficient to pay the principal (or, if so provided by the terms of the Securities of any series, a percentage of the principal) of, and (except if the Repayment Date shall be an Interest Payment Date) accrued interest on, all the Securities or portion thereof, as the case may be, to be repaid on such date.

Section 1303 Exercise of Option.

Securities of any series subject to repayment at the option of the Holders thereof will contain an “ Option to Elect Repayment ” form on the reverse of such Securities. In order for any Security to be repaid at the option of the Holder, the Trustee must receive at the Place of Payment therefor specified in the terms of such Security (or at such other place or places of which the Company shall from time to time notify the Holders of such Securities) not earlier than 60 days nor later than 30 days prior to the Repayment Date (1) the Security so providing for such repayment together with the “ Option to Elect Repayment ” form on the reverse thereof duly

70

completed by the Holder (or by the Holder’ attorney duly authorized in writing) or (2) a telex, facsimile transmission or a letter from a member of a national securities exchange, or the Financial Industry Regulatory Authority, or a commercial bank or trust company in the United States setting forth the name of the Holder of the Security, the principal amount of the Security, the principal amount of the Security to be repaid, the CUSIP number, if any, or a description of the tenor and terms of the Security, a statement that the option to elect repayment is being exercised thereby and a guarantee that the Security to be repaid, together with the duly completed form entitled “ Option to Elect Repayment ” on the reverse of the Security, will be received by the Trustee not later than the fifth Business Day after the date of such telex, facsimile transmission or letter; provided, however, that such telex, facsimile transmission or letter shall only be effective if such Security and form duly completed are received by the Trustee by such fifth Business Day. If less than the entire principal amount of such Security is to be repaid in accordance with the terms of such Security, the principal amount of such Security to be repaid, in increments of the minimum denomination for Securities of such series, and the denomination or denominations of the Security or Securities to be issued to the Holder for the portion of the principal amount of such Security surrendered that is not to be repaid, must be specified. The principal amount of any Security providing for repayment at the option of the Holder thereof may not be repaid in part if, following such repayment, the unpaid principal amount of such Security would be less than the minimum authorized denomination of Securities of or within the series of which such Security to be repaid is a part. Except as otherwise may be provided by the terms of any Security providing for repayment at the option of the Holder thereof, exercise of the repayment option by the Holder shall be irrevocable unless waived by the Company.

Section 1304 When Securities Presented for Repayment Become Due and Payable.

If Securities of any series providing for repayment at the option of the Holders thereof shall have been surrendered as provided in this Article and as provided by or pursuant to the terms of such Securities, such Securities or the portions thereof, as the case may be, to be repaid shall become due and payable and shall be paid by the Company on the Repayment Date therein specified, and on and after such Repayment Date (unless the Company shall default in the payment of such Securities on such Repayment Date) such Securities shall, if the same were interest bearing, cease to bear interest and the coupons for such interest appertaining to any Bearer Securities so to be repaid, except to the extent provided below, shall be void. Upon surrender of any such Security for repayment in accordance with such provisions, together with all coupons, if any, appertaining thereto maturing after the Repayment Date, the principal amount of such security so to be repaid shall be paid by the Company, together with accrued interest, if any, to the Repayment Date; provided, however, that coupons whose Stated Maturity is on or prior to the Repayment Date shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 1002) and, unless otherwise specified pursuant to Section 301, only upon presentation and surrender of such coupons; and provided further that, in the case of Registered Securities, installments of interest, if any, whose Stated Maturity is on or prior to the Repayment Date shall be payable (but without interest thereon, unless the Company shall default in the payment thereof) to the Holders of such Securities, or one or more Predecessor Securities, registered as such at the close of business on the relevant record dates according to their terms and the provisions of Section 307.

71

If any Bearer Security surrendered for repayment shall not be accompanied by all appurtenant coupons maturing after the Repayment Date, such Security may be paid after deducting from the amount payment therefor as provided in Section 1302 an amount equal to the face amount of all such missing coupons, or the surrender of such missing coupon or coupons may be waived by the Company and the Trustee if there be furnished to them such security or indemnity as they may require to save each of them and any Paying Agent harmless. If thereafter the Holder of such Security shall surrender to the Trustee or any Paying Agent any such missing coupon in respect of which a deduction shall have been made as provided in the preceding sentence, such Holder shall be entitled to receive the amount so deducted; provided, however, that interest represented by coupons shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 1002) and, unless otherwise specified as contemplated by Section 301, only upon presentation and surrender of those coupons. If the principal amount of any Security surrendered for repayment shall not be so repaid upon surrender thereof, such principal amount (together with interest, if any, thereon accrued to such Repayment Date) shall, until paid, bear interest from the Repayment Date at the rate of interest or Yield to Maturity (in the case of Original Issue Discount Securities) set forth in such Security.

Section 1305 Securities Repaid in Part.

Upon surrender of any Registered Security which is to be repaid in part only, the Company shall execute and the Trustee shall authenticate and deliver to the Holder of such Security, without service charge and at the expense of the Company, a new Registered Security or Securities of the same series, of any authorized denomination specified by the Holder, in an aggregate principal amount equal to and in exchange for the portion of the principal of such Security so surrendered which is not to be repaid.

ARTICLE FOURTEEN

DEFEASANCE AND COVENANT DEFEASANCE

Section 1401 Applicability of Article; Company’s Option to Effect Defeasance or Covenant Defeasance.

If, pursuant to Section 301, provision is made for either or both of (a) defeasance of the Securities of or within a series under Section 1402 or (b) covenant defeasance of the Securities of or within a series under Section 1403 to be applicable to the Securities of any series, then the provisions of such Section or Sections, as the case may be, together with the other provisions of this Article (with such modifications thereto as may be specified pursuant to Section 301 with respect to any Securities), shall be applicable to such Securities and any coupons appertaining thereto, and the Company may at its option by Board Resolution at any time, with respect to such Securities and any coupons appertaining thereto, elect to defease such Outstanding Securities and any coupons appertaining thereto pursuant to Section 1402 (if applicable) or Section 1403 (if applicable) upon compliance with the conditions set forth below in this Article.

Section 1402 Defeasance and Discharge.

Upon the Company’s exercise of the above option applicable to this Section with respect to any Securities of or within a series, the Company and the Guarantors shall be deemed to have

72

been discharged from its obligations with respect to such Outstanding Securities and any coupons appertaining thereto on the date the conditions set forth in Section 1404 are satisfied (hereinafter, “ defeasance ”). For this purpose, such defeasance means that the Company shall be deemed to have paid and discharged the entire indebtedness represented by such Outstanding Securities and any coupons appertaining thereto, which shall thereafter be deemed to be “ Outstanding ” only for the purposes of Section 1405 and the other Sections of this Indenture referred to in clauses (A) and (B) below, and to have satisfied all of its other obligations under such Securities and any coupons appertaining thereto and this Indenture insofar as such Securities and any coupons appertaining thereto are concerned (and the Trustee, at the expense of the Company, shall execute proper instruments acknowledging the same), except for the following which shall survive until otherwise terminated or discharged hereunder: (A) the rights of Holders of such Outstanding Securities and any coupons appertaining thereto to receive, solely from the trust fund described in Section 1404 and as more fully set forth in such Section, payments in respect of the principal of (and premium or Make-Whole Amount, if any) and interest, if any, on such Securities and any coupons appertaining thereto when such payments are due, (B) the Company’s obligations with respect to such Securities under Sections 305, 306, 1002 and 1003 and with respect to the payment of Additional Amounts, if any, on such Securities as contemplated by Section 1007, (C) the rights, powers, trusts, duties and immunities of the Trustee hereunder and (D) this Article. Subject to compliance with this Article Fourteen, the Company may exercise its option under this Section notwithstanding the prior exercise of its option under Section 1403 with respect to such Securities and any coupons appertaining thereto.

Section 1403 Covenant Defeasance.

Upon the Company’s exercise of the above option applicable to this Section with respect to any Securities of or within a series, the Company and the Guarantors shall be released from its obligations under Section 1005 and, if specified pursuant to Section 301, its obligations under any other covenant, with respect to such Outstanding Securities and any coupons appertaining thereto on and after the date the conditions set forth in Section 1404 are satisfied (hereinafter, “covenant defeasance”), and such Securities and any coupons appertaining thereto shall thereafter be deemed to be not “Outstanding” for the purposes of any direction, waiver, consent or declaration or Act of Holders (and the consequences of any thereof) in connection with Section 1005 or such other covenant, but shall continue to be deemed “Outstanding” for all other purposes hereunder. For this purpose, such covenant defeasance means that, with respect to such Outstanding Securities and any coupons appertaining thereto, the Company may omit to comply with and shall have no liability in respect of any term, condition or limitation set forth in any such Section or such other covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such Section or such other covenant or by reason of reference in any such Section or such other covenant to any other provision herein or in any other document and such omission to comply shall not constitute a default or an Event of Default under Section 501(4) or Section 501(9) or otherwise, as the case may be, but, except as specified above, the remainder of this Indenture and such Securities and any coupons appertaining thereto shall be unaffected thereby.

73

Section 1404 Conditions to Defeasance or Covenant Defeasance.

The following shall be the conditions to application of Section 1402 or Section 1403 to any Outstanding Securities of or within a series and any coupons appertaining thereto:

(a) The Company shall irrevocably have deposited or caused to be deposited with the Trustee (or another trustee satisfying the requirements of Section 607 who shall agree to comply with the provisions of this Article Fourteen applicable to it) as trust funds in trust for the purpose of making the following payments, specifically pledged as security for, and dedicated solely to, the benefit of the Holders of such Securities and any coupons appertaining thereto, (1) an amount in such currency, currencies or currency unit in which such Securities and any coupons appertaining thereto are then specified as payable at Stated Maturity, or (2) Government Obligations applicable to such Securities and coupons appertaining thereto (determined on the basis of the currency, currencies or currency unit in which such Securities and coupons appertaining thereto are then specified as payable at Stated Maturity) which through the scheduled payment of principal and interest in respect thereof in accordance with their terms will provide, not later than one day before the due date of any payment of principal of (and premium or Make-Whole Amount, if any) and interest, if any, on such Securities and any coupons appertaining thereto, money in an amount, or (3) a combination thereof in an amount, sufficient, without consideration of any reinvestment of such principal and interest, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, to pay and discharge, and which shall be applied by the Trustee (or other qualifying trustee) to pay and discharge, (i) the principal of (and premium or Make-Whole Amount, if any) and interest, if any, on such Outstanding Securities and any coupons appertaining thereto on the Stated Maturity of such principal or installment of principal or interest and (ii) any mandatory sinking fund payments or analogous payments applicable to such Outstanding Securities and any coupons appertaining thereto on the day on which such payments are due and payable in accordance with the terms of this Indenture and of such Securities and any coupons appertaining thereto; provided, that the Trustee shall have been irrevocably instructed to apply such money or the proceeds of such Government Obligations to said payments with respect to such Securities. Before such a deposit, the Company may give to the Trustee, in accordance with Section 1102 hereof, a notice of its election to redeem all or any portion of such Outstanding Securities at a future date in accordance with the terms of the Securities of such series and Article Eleven hereof, which notice shall be irrevocable. Such irrevocable redemption notice, if given, shall be given effect in applying the foregoing.

(b) Such defeasance or covenant defeasance shall not result in a breach or violation of, or constitute a default under, this Indenture or any other material agreement or instrument to which the Company is a party or by which it is bound (and shall not cause the Trustee to have a conflicting interest pursuant to Section 310(b) of the TIA with respect to any Security of the Company).

(c) No Event of Default or event which with notice or lapse of time or both would become an Event of Default with respect to such Securities and any coupons appertaining thereto shall have occurred and be continuing on the date of such deposit or, insofar as Section 501(7) and Section 501(8) are concerned, at any time during the period ending on the 91st day after the date of such deposit (it being understood that this condition shall not be deemed satisfied until the expiration of such period).

74

(d) In the case of an election under Section 1402, the Company shall have delivered to the Trustee an Opinion of Counsel stating that (i) the Company has received from, or there has been published by, the Internal Revenue Service a ruling, or (ii) since the date of execution of this Indenture, there has been a change in the applicable Federal income tax law, in either case to the effect that, and based thereon such opinion shall confirm that, the Holders of such Outstanding Securities and any coupons appertaining thereto will not recognize income, gain or loss for Federal income tax purposes as a result of such defeasance and will be subject to Federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such defeasance had not occurred.

(e) In the case of an election under Section 1403, the Company shall have delivered to the Trustee an Opinion of Counsel to the effect that the Holders of such Outstanding Securities and any coupons appertaining thereto will not recognize income, gain or loss for Federal income tax purposes as a result of such covenant defeasance and will be subject to Federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such covenant defeasance had not occurred.

(f) The Company shall have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent to the defeasance under Section 1402 or the covenant defeasance under Section 1403 (as the case may be) have been complied with and an Opinion of Counsel to the effect that either (i) as a result of a deposit pursuant to subsection (a) above and the related exercise of the Company’s option under Section 1402 or Section 1403 (as the case may be) registration is not required under the Investment Company Act of 1940, as amended, by the Company, with respect to the trust funds representing such deposit or by the Trustee for such trust funds or (ii) all necessary registrations under said Act have been effected.

(g) After the 91st day following the deposit, the trust funds will not be subject to the effect of any applicable bankruptcy, insolvency, reorganization or similar laws affecting creditors’ rights generally.

(h) Notwithstanding any other provisions of this Section, such defeasance or covenant defeasance shall be effected in compliance with any additional or substitute terms, conditions or limitations which may be imposed on the Company in connection therewith pursuant to Section 301.

Section 1405 Deposited Money and Government Obligations to Be Held in Trust; Other Miscellaneous Provisions.

Subject to the provisions of the last paragraph of Section 1003, all money and Government Obligations (or other property as may be provided pursuant to Section 301) (including the proceeds thereof) deposited with the Trustee (or other qualifying trustee, collectively for purposes of this Section 1405, the “ Trustee ”) pursuant to Section 1404 in respect of any Outstanding Securities of any series and any coupons appertaining thereto shall be held in

75

trust and applied by the Trustee, in accordance with the provisions of such Securities and any coupons appertaining thereto and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as its own Paying Agent) as the Trustee may determine, to the Holders of such Securities and any coupons appertaining thereto of all sums due and to become due thereon in respect of principal (and premium or Make-Whole Amount, if any) and interest and Additional Amounts, if any, but such money need not be segregated from other funds except to the extent required by law.

Unless otherwise specified with respect to any Security pursuant to Section 301, if, after a deposit referred to in Section 1404(a) has been made, (a) the Holder of a Security in respect of which such deposit was made is entitled to, and does, elect pursuant to Section 301 or the terms of such Security to receive payment in a currency or currency unit other than that in which the deposit pursuant to Section 1404(a) has been made in respect of such Security, or (b) a Conversion Event occurs in respect of the currency or currency unit in which the deposit pursuant to Section 1404(a) has been made, the indebtedness represented by such Security and any coupons appertaining thereto shall be deemed to have been, and will be, fully discharged and satisfied through the payment of the principal of (and premium or Make-Whole Amount, if any), and interest, if any, on such Security as the same becomes due out of the proceeds yielded by converting (from time to time as specified below in the case of any such election) the amount or other property deposited in respect of such Security into the currency or currency unit in which such Security becomes payable as a result of such election or Conversion Event based on the applicable market exchange rate for such currency or currency unit in effect on the second Business Day prior to each payment date, except, with respect to a Conversion Event, for such currency or currency unit in effect (as nearly as feasible) at the time of the Conversion Event.

The Company shall pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the Government Obligations deposited pursuant to Section 1404 or the principal and interest received in respect thereof other than any such tax, fee or other charge which by law is for the account of the Holders of such Outstanding Securities and any coupons appertaining thereto.

Anything in this Article to the contrary notwithstanding, the Trustee shall deliver or pay to the Company from time to time upon Company Request any money or Government Obligations (or other property and any proceeds therefrom) held by it as provided in Section 1404 which, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, are in excess of the amount thereof which would then be required to be deposited to effect a defeasance or covenant defeasance, as applicable, in accordance with this Article.

Section 1406 Reinstatement

If the Trustee or Paying Agent is unable to apply any money in accordance with 1405 with respect to any Securities by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, then the Company’s obligations under this Indenture and such Securities and any related coupons shall be revived and reinstated as though no deposit had occurred pursuant to Section 1402 or 1403, as the case may be, until such time as the Trustee or Paying Agent is permitted to apply all such money in

76

accordance with Section 1405; provided, however, that if the Company makes any payment of principal of (or premium, if any) or interest, if any, on any such Security or any related coupon following the reinstatement of its obligations, if any, on any such Security or any related coupon following the reinstatement of its obligations, the Company shall be subrogated to the rights of the Holders of such Securities and any related coupons to receive such payment from the money held by the Trustee or Paying Agent.

ARTICLE FIFTEEN

MEETINGS OF HOLDERS OF SECURITIES

Section 1501 Purposes for Which Meetings May Be Called.

A meeting of Holders of Securities of any series may be called at any time and from time to time pursuant to this Article to make, give or take any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be made, given or taken by Holders of Securities of such series.

Section 1502 Call, Notice and Place of Meetings.

(a) The Trustee may at any time call a meeting of Holders of Securities of any series for any purpose specified in Section 1501, to be held at such time and at such place in the Borough of Manhattan, The City of New York, or in London as the Trustee shall determine. Notice of every meeting of Holders of Securities of any series, setting forth the time and the place of such meeting and in general terms the action proposed to be taken at such meeting, shall be given, in the manner provided in Section 106, not less than 21 nor more than 180 days prior to the date fixed for the meeting.

(b) In case at any time the Company, pursuant to a Board Resolution, or the Holders of at least 10% in principal amount of the Outstanding Securities of any series shall have requested the Trustee to call a meeting of the Holders of Securities of such series for any purpose specified in Section 1501, by written request setting forth in reasonable detail the action proposed to be taken at the meeting, and the Trustee shall not have made the first publication of the notice of such meeting within 21 days after receipt of such request or shall not thereafter proceed to cause the meeting to be held as provided herein, then the Company or the Holders of Securities of such series in the amount above specified, as the case may be, may determine the time and the place in the Borough of Manhattan, The City of New York, or in London for such meeting and may call such meeting for such purposes by giving notice thereof as provided in subsection (a) of this Section.

Section 1503 Persons Entitled to Vote at Meetings.

To be entitled to vote at any meeting of Holders of Securities of any series, a Person shall be (1) a Holder of one or more Outstanding Securities of such series, or (2) a Person appointed by an instrument in writing as proxy for a Holder or Holders of one or more Outstanding Securities of such series by such Holder or Holders. The only Persons who shall be entitled to be present or to speak at any meeting of Holders of Securities of any series shall be the Persons entitled to vote at such meeting and their counsel, any representatives of the Trustee and its counsel and any representatives of the Company and its counsel.

77

Section 1504 Quorum; Action.

The Persons entitled to vote a majority in principal amount of the Outstanding Securities of a series shall constitute a quorum for a meeting of Holders of Securities of such series; provided, however, that if any action is to be taken at such meeting with respect to a consent or waiver which this Indenture expressly provides may be given by the Holders of not less than a specified percentage in principal amount of the Outstanding Securities of a series, the Persons entitled to vote such specified percentage in principal amount of the Outstanding Securities of such series shall constitute a quorum. In the absence of a quorum within 30 minutes after the time appointed for any such meeting, the meeting shall, if convened at the request of Holders of Securities of such series, be dissolved. In any other case the meeting may be adjourned for a period of not less than 10 days as determined by the chairman of the meeting prior to the adjournment of such meeting. In the absence of a quorum at any such adjourned meeting, such adjourned meeting may be further adjourned for a period of not less than 10 days as determined by the chairman of the meeting prior to the adjournment of such adjourned meeting. Notice of the reconvening of any adjourned meeting shall be given as provided in Section 1502(a), except that such notice need be given only once not less than five (5) days prior to the date on which the meeting is scheduled to be reconvened. Notice of the reconvening of any adjourned meeting shall state expressly the percentage, as provided above, of the principal amount of the Outstanding Securities of such series which shall constitute a quorum. Except as limited by the proviso to Section 902, any resolution presented to a meeting or adjourned meeting duly reconvened at which a quorum is present as aforesaid may be adopted by the affirmative vote of the Holders of a majority in principal amount of the Outstanding Securities of that series; provided, however, that, except as limited by the proviso to Section 902, any resolution with respect to any request, demand, authorization, direction, notice, consent, waiver or other action which this Indenture expressly provides may be made, given or taken by the Holders of a specified percentage, which is less than a majority, in principal amount of the Outstanding Securities of a series may be adopted at a meeting or an adjourned meeting duly reconvened and at which a quorum is present as aforesaid by the affirmative vote of the Holders of such specified percentage in principal amount of the Outstanding Securities of that series.

Any resolution passed or decision taken at any meeting of Holders of Securities of any series duly held in accordance with this Section shall be binding on all the Holders of Securities of such series and the related coupons, whether or not present or represented at the meeting.

Notwithstanding the foregoing provisions of this Section 1504, if any action is to be taken at a meeting of Holders of Securities of any series with respect to any request, demand, authorization, direction, notice, consent, waiver or other action that this Indenture expressly provides may be made, given or taken by the Holders of a specified percentage in principal amount of all Outstanding Securities affected thereby, or of the Holders of such series and one or more additional series:

(i) there shall be no minimum quorum requirement for such meeting; and

78

(ii) the principal amount of the Outstanding Securities of such series that vote in favor of such request, demand, authorization, direction, notice, consent, waiver or other action shall be taken into account in determining whether such request, demand, authorization, direction, notice, consent, waiver or other action has been made, given or taken under this Indenture.

Section 1505 Determination of Voting Rights; Conduct and Adjournment of Meetings.

(a) Notwithstanding any provisions of this Indenture, the Trustee may make such reasonable regulations as it may deem advisable for any meeting of Holders of Securities of a series in regard to proof of the holding of Securities of such series and of the appointment of proxies and in regard to the appointment and duties of inspectors of votes, the submission and examination of proxies, certificates and other evidence of the right to vote, and such other matters concerning the conduct of the meeting as it shall deem appropriate. Except as otherwise permitted or required by any such regulations, the holding of Securities shall be proved in the manner specified in Section 104 and the appointment of any proxy shall be proved in the manner specified in Section 104 or by having the signature of the Person executing the proxy witnessed or guaranteed by any trust company, bank or banker authorized by Section 104 to certify to the holding of Bearer Securities. Such regulations may provide that written instruments appointing proxies, regular on their face, may be presumed valid and genuine without the proof specified in Section 104 or other proof.

(b) The Trustee shall, by an instrument in writing, appoint a temporary chairman of the meeting, unless the meeting shall have been called by the Company or by Holders of Securities as provided in Section 1502(b), in which case the Company or the Holders of Securities of or within the series calling the meeting, as the case may be, shall in like manner appoint a temporary chairman. A permanent chairman and a permanent secretary of the meeting shall be elected by vote of the Persons entitled to vote a majority in principal amount of the Outstanding Securities of such series represented at the meeting.

(c) At any meeting each Holder of a Security of such series or proxy shall be entitled to one vote for each $1,000 principal amount of the Outstanding Securities of such series held or represented by him; provided, however, that no vote shall be cast or counted at any meeting in respect of any Security challenged as not Outstanding and ruled by the chairman of the meeting to be not Outstanding. The chairman of the meeting shall have no right to vote, except as a Holder of a Security of such series or proxy.

(d) Any meeting of Holders of Securities of any series duly called pursuant to Section 1502 at which a quorum is present may be adjourned from time to time by Persons entitled to vote a majority in principal amount of the Outstanding Securities of such series represented at the meeting, and the meeting may be held as so adjourned without further notice.

Section 1506 Counting Votes and Recording Action of Meetings.

The vote upon any resolution submitted to any meeting of Holders of Securities of any series shall be by written ballots on which shall be subscribed the signatures of the Holders of Securities of such series or of their representatives by proxy and the principal amounts and serial

79

numbers of the Outstanding Securities of such series held or represented by them. The permanent chairman of the meeting shall appoint two inspectors of votes who shall count all votes cast at the meeting for or against any resolution and who shall make and file with the secretary of the meeting their verified written reports in duplicate of all votes cast at the meeting. A record, at least in duplicate, of the proceedings of each meeting of Holders of Securities of any series shall be prepared by the secretary of the meeting and there shall be attached to said record the original reports of the inspectors of votes on any vote by ballot taken thereat and affidavits by one or more persons having knowledge of the fact, setting forth a copy of the notice of the meeting and showing that said notice was given as provided in Section 1502 and, if applicable, Section 1504. Each copy shall be signed and verified by the affidavits of the permanent chairman and secretary of the meeting and one such copy shall be delivered to the Company and another to the Trustee to be preserved by the Trustee, the latter to have attached thereto the ballots voted at the meeting. Any record so signed and verified shall be conclusive evidence of the matters therein stated.

Section 1507 Evidence of Action Taken by Holders.

Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be given or taken by a specified percentage in principal amount of the Holders of any or all series may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such specified percentage of Holders in person or by agent duly appointed in writing; and, except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments are delivered to the Trustee. Proof of execution of any instrument or of a writing appointing any such agent shall be sufficient for any purpose of this Indenture and (subject to Article Six) conclusive in favor of the Trustee and the Company, if made in the manner provided in this Article.

Section 1508 Proof of Execution of Instruments.

Subject to Article Six, the execution of any instrument by a Holder or his agent or proxy may be proved in accordance with such reasonable rules and regulations as may be prescribed by the Trustee or in such manner as shall be satisfactory to the Trustee.

ARTICLE SIXTEEN

CONVERSION OR EXCHANGE OF SECURITIES

Section 1601 Applicability of Article.

The provisions of this Article shall be applicable to the Securities of any series which are convertible or exchangeable for other securities or property (including securities of other issuers) of the Company, except as otherwise specified as contemplated by Section 301 for the Securities of such series.

Section 1602 Election to Exchange; Notice to Trustee and Holders.

The election of the Company to exchange any Securities shall be evidenced by a Board Resolution or in another manner specified as contemplated by Section 301 for such Securities. On or prior to the seventh Business Day prior to Maturity of the Securities, the Company shall provide written notice to the Holders of record of the Securities and to the Trustee and will publish a notice in an Authorized Newspaper stating whether the Company has made such election.

80

Section 1603 No Fractional Shares.

No fractional shares or fractional securities shall be delivered upon conversions or exchanges of Securities of any series. If more than one Security shall be surrendered for conversion or exchange at one time by the same Holder, the number of full shares or units which shall be delivered upon conversion or exchange shall be computed on the basis of the aggregate principal amount of the Securities (or specified portions thereof to the extent permitted hereby) so surrendered. If, except for the provisions of this Section 1603, any Holder of a Security or Securities would be entitled to a fractional share or unit of a security upon the conversion or exchange of such Security or Securities, or specified portions thereof, the Company shall pay to such Holder an amount in cash equal to the current market value of such fractional share or unit computed on the basis of the Closing Price of such security on the date preceding the date on which the conversion or exchange shall be effected in accordance with Section 1610. The “Closing Price” of any security on any date of determination means, (i) if such security is listed or admitted to unlisted trading privileges on a national securities exchange, the last reported sales price on the composite tape on such exchange, or (ii) if such security is not at the time so listed or admitted to unlisted trading privileges on a national securities exchange, the average of the bid and asked prices of such security in the over-the-counter market, as reported by the National Quotation Bureau, Incorporated or similar organization if the National Quotation Bureau, Incorporated is no longer reporting such information, or if not so available, the market price as determined by a nationally recognized independent investment banking firm retained for this purpose by the Company.

Section 1604 Adjustment of Conversion Rate or Exchange Rate.

The exchange rate or conversion rate of Securities of any series that are exchangeable for or convertible into other securities or property (including securities of other issuers) shall be adjusted for any stock dividends, stock splits, reclassification, combinations or similar transactions or any consolidation, merger or other reorganization event in accordance with the terms of the supplemental indenture or Board Resolution setting forth the terms of the Securities of such series.

Whenever the exchange rate or conversion rate is adjusted, the Company shall compute the adjusted exchange rate or conversion rate in accordance with terms of the applicable Board Resolution or supplemental indenture and shall prepare an Officers’ Certificate setting forth the adjusted exchange rate or conversion rate and showing in reasonable detail the facts upon which such adjustment is based, and such certificate shall forthwith be filed at each office or agency maintained for the purpose of exchange or conversion of Securities pursuant to Section 1002 and, if different, with the Trustee. The Company shall forthwith cause a notice setting forth the adjusted exchange rate or conversion rate to be mailed, first class postage prepaid, to each Holder of Securities of such series at its address appearing on the Security Register and to any exchange agent or conversion agent other than the Trustee.

81

Section 1605 Payment of Certain Taxes Upon Exchange.

The Company will pay any and all taxes that may be payable in respect of the transfer and delivery of shares of other securities or property (including securities of other issuers) of the Company on exchange or conversion of Securities pursuant hereto. The Company shall not, however, be required to pay any tax which may be payable in respect of any transfer involved in the delivery of shares of securities in a name other than that of the Holder of the Security or Securities to be exchanged or converted, and no such transfer or delivery shall be made unless and until the person requesting such transfer has paid to the Company the amount of any such tax, or has established, to the satisfaction of the Company, that such tax has been paid.

Section 1606 Shares Free and Clear.

The Company hereby warrants that upon exchange or conversion of Securities of any series, the Holder of a Security shall receive all rights held by the Company in such security for which such Security is at such time exchangeable or convertible under this Article Sixteen, free and clear of any and all liens, claims, charges and encumbrances other than any liens, claims, charges and encumbrances which may have been placed on any such security by the prior owner thereof, prior to the time such security was acquired by the Company. Except as provided in Section 1605, the Company will pay all taxes and charges with respect to the delivery of such security delivered in exchange or conversion for Securities hereunder.

Section 1607 Cancellation of Security.

Upon receipt by the Trustee of Securities of any series delivered to it for exchange or conversion under this Article Sixteen, the Trustee shall cancel and dispose of the same as provided in Section 309.

Section 1608 Duties of Trustee Regarding Exchange and Conversion.

Neither the Trustee nor any exchange agent or conversion agent shall at any time be under any duty or responsibility to any Holder of Securities of any series that is exchangeable or convertible into other securities or property (including securities of other issuers) of the Company to determine whether any facts exist which may require any adjustment of the exchange rate or conversion rate, or with respect to the nature or extent of any such adjustment when made, or with respect to the method employed, whether herein or in any supplemental indenture, any resolutions of the Board of Directors or written instrument executed by one or more officers of the Company provided to be employed in making the same. Neither the Trustee nor any exchange agent or conversion agent shall be accountable with respect to the validity or value (or the kind or amount) of any securities or property (including securities of other issuers, of the Company, or of any Securities and neither the Trustee nor any exchange agent or any conversion agent makes any representation with respect thereto. Subject to the provisions of TIA Sections 315(a) through 313(d), neither the Trustee nor any exchange agent or conversion agent shall be responsible for any failure of the Company to issue, transfer or deliver any stock certificates or other securities or property (including securities of other issuers) upon the surrender of any Security for the purpose of exchange or conversion or to comply with any of the covenants of the Company contained in this Article Sixteen or in the applicable supplemental

82

indenture, resolutions of the Board of Directors or written instrument executed by one or more duly authorized officers of the Company. The Trustee shall not be responsible for the Company’s failure to comply with this Article Sixteen.

Section 1609 Repayment of Certain Funds Upon Exchange or Conversion.

Any funds which at any time shall have been deposited by the Company or on its behalf with the Trustee or any other paying agent for the purpose of paying the principal of, and premium, if any, and interest, if any, on any of the Securities (including funds deposited for the sinking fund referred to in Article Twelve hereof) and which shall not be required for such purposes because of the exchange or conversion of such Securities as provided in this Article Sixteen shall after such exchange or conversion be repaid to the Company by the Trustee upon Company Request.

Section 1610 Exercise of Conversion or Exchange Privilege.

In order to exercise a conversion or exchange privilege, the Holder of a Security of a series with such a privilege shall surrender such Security to the Company at the office or agency maintained for that purpose pursuant to Section 1002, accompanied by written notice to the Company that the Holder elects to convert or exchange such Security or a specified portion thereof. In the case of Registered Securities, such notice shall also state, if different from the name or names (with address) in which the Securities are registered, the name or names in which the Securities or property (including securities of other issuers) of the Company which shall be issuable on such conversion or exchange shall be issued. Registered Securities surrendered for conversion or exchange shall (if so required by the Company or the Trustee) be duly endorsed by or accompanied by instruments of transfer in forms satisfactory to the Company and the Trustee duly executed by the registered Holder or its attorney duly authorized in writing; and Registered Securities so surrendered for conversion or exchange during the period from the close of business on any Regular Record Date to the opening of business on the next succeeding Interest Payment Date (excluding Securities or portions thereof called for redemption during such period) shall also be accompanied by payment in funds acceptable to the Company of an amount equal to the interest payable on such Interest Payment Date on the principal amount of such Security then being converted or exchanged, and such interest shall be payable to such registered Holder notwithstanding the conversion or exchange of such Security, subject to the provisions of Section 307 relating to the payment of Defaulted Interest by the Company. As promptly as practicable after the receipt of such notice and of any payment required pursuant to a Board Resolution and, subject to Section 303, set forth, or determined in the manner provided, in an Officers’ Certificate, or established in one or more indentures supplemental hereto setting forth the terms of such series of Security, and the surrender of such Security in accordance with such reasonable regulations as the Company may prescribe, the Company shall issue and shall deliver, at the office or agency at which such Security is surrendered, to such Holder or on its written order, securities or property (including securities of other issuers) of the Company issuable or deliverable upon the conversion or exchange of such Security (or specified portion thereof), in accordance with the provisions of such Board Resolution, Officers’ Certificate or supplemental indenture, and cash as provided therein in respect of any fractional share or unit otherwise issuable upon such conversion or exchange. Such conversion or exchange shall be deemed to have been effected immediately prior to the close of business on the date on which such notice

83

and such payment, if required, shall have been received in proper order for conversion or exchange by the Company and such Security shall have been surrendered as aforesaid (unless such Holder shall have so surrendered such Security and shall have instructed the Company to effect the conversion or exchange on a particular date following such surrender and such Holder shall be entitled to convert or exchange such Security on such date, in which case such conversion or exchange shall be deemed to be effected immediately prior to the close of business on such date) and at such time the rights of the Holder of such Security as such Security Holder shall cease and the person or persons in whose name or names any securities or property (including securities of other issuers) of the Company shall be issuable or deliverable upon such conversion or exchange shall be deemed to have become the Holder or Holders of record of the shares represented thereby. Except as set forth above and subject to the final paragraph of Section 307, no payment or adjustment shall be made upon any conversion or exchange on account of any interest accrued on the Securities surrendered for conversion or exchange or on account of any interest or dividends on the Securities or property (including securities of other issuers) of the Company issued or delivered upon such conversion or exchange.

In the case of any Security which is converted or exchanged in part only, upon such conversion or exchange the Company shall execute and the Trustee shall authenticate and deliver to or on the order of the Holder thereof, at the expense of the Company, a new Security or Securities of the same series, of authorized denominations, in aggregate principal amount equal to the unconverted or unexchanged portion of such Security.

Section 1611 Effect of Consolidation or Merger on Exchange or Conversion Privilege.

In case of any consolidation of the Company with, or merger of the Company into or with any other Person, or in case of any sale of all or substantially all of the assets of the Company, the Company or the Person formed by such consolidation or the Person into which the Company shall have been merged or the Person which shall have acquired such assets, as the case may be, shall execute and deliver to the Trustee a supplemental indenture providing that the Holder of each Security then Outstanding of any series that is exchangeable for or convertible into securities of the Company shall have the right, which right shall be the exclusive exchange or conversion right thereafter available to said Holder (until the expiration of the exchange or conversion right of such Security), to exchange or convert such Security into the kind and amount of shares of stock or other securities or property (including cash) receivable upon such consolidation, merger or sale by a holder of the number of shares or units of securities of the Company for which such Security might have been exchanged or converted immediately prior to such consolidation, merger or sale, subject to compliance with the other provisions of this Indenture, such Security and such supplemental indenture. Such supplemental indenture shall provide for adjustments which shall be as nearly equivalent as may be practicable to the adjustments provided for in such Security. The above provisions of this Section shall similarly apply to successive consolidations, mergers or sales. It is expressly agreed and understood that anything in this Indenture to the contrary notwithstanding, if, pursuant to such merger, consolidation or sale, holders of outstanding shares of Common Stock of the Company or other securities, into which the Security is exchangeable or convertible do not receive shares of common stock or corresponding other securities of the surviving corporation, but receive other securities, cash or other property or any combination thereof, Holders of Securities shall not have the right to thereafter exchange their Securities for or convert their Securities into common stock

84

or other securities having substantially identical terms as the Company securities, for which the Security was originally exchangeable or into which the Security was originally convertible, of the surviving corporation or the corporation which shall have acquired such assets, but rather, shall have the right upon such exchange or conversion to receive the other securities, cash or other property receivable by a holder of the number of shares of Common Stock or such or other securities of the Company for or into which the Securities held by such holder might have been exchanged or converted immediately prior to such consolidation, merger or sale, all as more fully provided in the first sentence of this Section 1611. Anything in this Section 1611 to the contrary notwithstanding, the provisions of this Section 1611 shall not apply to a merger or consolidation of another corporation with or into the Company pursuant to which both of the following conditions are applicable: (i) the Company is the surviving corporation and (ii) the outstanding shares of Company Common Stock or other securities of the Company for which the Security was originally exchangeable or into which the Security was originally convertible are not changed or converted into any other securities or property (including cash) or reclassified pursuant to the terms of such merger or consolidation.

As evidence of the kind and amount of shares of stock or other securities or property (including cash) into which Securities may properly be exchangeable or convertible after any such consolidation, merger or sale, or as to the appropriate adjustments of the conversion prices or exchange rates applicable with respect thereto, the Trustee shall be furnished with and may accept the certificate or opinion of an independent certified public accountant with respect thereto; and, in the absence of bad faith on the part of the Trustee, the Trustee may conclusively rely thereon, and shall not be responsible or accountable to any Holder of Securities for any provision in conformity therewith or approved by such independent certified accountant which may be contained in said supplemental indenture.

ARTICLE SEVENTEEN

GUARANTEES

Section 1701 Guarantee.

Any series of Securities may be guaranteed by one or more of the Guarantors. The terms and the form of any such Guarantee will be established in the manner contemplated by Section 301 for that particular series of Securities.

[Signatures to follow.]

85

IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed by their respective officers hereunto duly authorized, all as of the day and year first above written.

86

87

EXHIBIT A-1

FORM OF CERTIFICATE TO BE GIVEN BY PERSON ENTITLED TO RECEIVE

BEARER SECURITY OR TO OBTAIN INTEREST PAYABLE PRIOR TO THE

EXCHANGE DATE CERTIFICATE

[Insert title or sufficient description of Securities to be delivered]

This is to certify that, as of the date hereof, and except as set forth below, the above-captioned Securities held by you for our account (i) are owned by person(s) that are not citizens or residents of the United States, domestic partnerships, domestic corporations or any estate or trust the income of which is subject to United States federal income taxation regardless of its source (“ United States person(s) ”), (ii) are owned by United States person(s) that are (a) foreign branches of United States financial institutions (financial institutions, as defined in United States Treasury Regulations Section 1.165-12(c)(1)(v) are herein referred to as “ financial institutions ”) purchasing for their own account or for resale, or (b) United States person(s) who acquired the Securities through foreign branches of United States financial institutions and who hold the Securities through such United States financial institutions on the date hereof (and in either case (a) or (b), each such United States financial institution hereby agrees, on its own behalf or through its agent, that you may advise                      or its agent that such financial institution will provide a certificate within a reasonable time stating that it agrees to comply with the requirements of Section 165(j)(3)(A), (B) or (C) of the United States Internal Revenue Code of 1986, as amended, and the regulations thereunder), or (iii) are owned by a financial institution for purposes of resale during the restricted period (as defined in United States Treasury Regulations Section 1.1635(c)(2)(i)(D)(7)), and, such financial institution described in clause (iii) above (whether or not also described in clause (i) or (ii)), certifies that it has not acquired the Securities for purposes of resale directly or indirectly to a United States person or to a person within the United States or its possessions.

As used herein, “ United States ” means the United States of America (including the States and the District of Columbia); and its “ possessions ” include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the Northern Mariana Islands.

We undertake to advise you promptly by tested telex on or prior to the date on which you intend to submit your certification relating to the above-captioned Securities held by you for our account in accordance with your operating procedures if any applicable statement herein is not correct on such date, and in the absence of any such notification it may be assumed that this certification applies as of such date. This certificate excepts and does not relate to [U.S.$] of such interest in the above-captioned Securities in respect of which we are not able to certify and as to which we understand an exchange for an interest in a permanent global Security or an exchange for and delivery of definitive Securities (or, if relevant, collection of any interest) cannot be made until we do so certify.

We understand that this certificate may be required in connection with certain tax legislation in the United States. If administrative or legal proceedings are commenced or threatened in connection with which this certificate is or would be relevant, we irrevocably authorize you to produce this certificate or a copy thereof to any interested party in such proceedings.

Exhibit A-1, Page 1

Dated:            ,         .

[To be dated no earlier than the 15th day prior to the earlier of (i) the Exchange Date or (ii) the relevant Interest Payment Date occurring prior to the Exchange Date, as applicable.]

Exhibit A-1, Page 2

EXHIBIT A-2

FORM OF CERTIFICATE TO BE GIVEN BY EUROCLEAR

AND CLEARSTREAM BANKING S.A. IN CONNECTION WITH THE EXCHANGE OF

A PORTION OF A TEMPORARY GLOBAL SECURITY OR TO OBTAIN INTEREST

PAYABLE PRIOR TO THE EXCHANGE DATE CERTIFICATE

[Insert title or sufficient description of Securities to be delivered]

This is to certify that, based solely on written certifications that we have received in writing, by tested telex or by electronic transmission from each of the persons appearing in our records as persons entitled to a portion of the principal amount set forth below (our “ Member Organizations ”) substantially in the form attached hereto, as of the date hereof, (U.S.$) principal amount of the above-captioned Securities (i) is owned by persons(s) that are not citizens or residents of the United States, domestic partnerships, domestic corporations or any estate or trust the income of which is subject to United States Federal income taxation regardless of its source (“ United States person(s) ”), (ii) is owned by United States person(s) that are (a) foreign branches of United States financial institutions (financial institutions, as defined in United States Treasury Regulations Section 1.165-12(c)(1)(v) are herein referred to as “ financial institutions ”) purchasing for their own account or for resale, or (b) United States person(s) who acquired the Securities through foreign branches of United States financial institutions and who hold the Securities through such United States financial institutions on the date hereof (and in either case (a) or (b), each such financial institution has agreed, on its own behalf or through its agent, that we may advise                      or its agent that such financial institution will provide a certificate within a reasonable time stating that it agrees to comply with the requirements of Section 165(j)(3)(A), (B), or (C) of the Internal Revenue Code of 1986, as amended, and the regulations thereunder), or (iii) is owned by a financial institution for purposes of resale during the restricted period (as defined in United States Treasury Regulations Section 1.163-5(c)(2)(i)(D)(7)), and that such financial institutions described in clause (iii) above (whether or not also described in clause (i) or (ii)) have certified that they have not acquired the Securities for purposes of resale directly or indirectly to a United States person or to a person within the United States or its possessions.

As used herein, “ United States ” means the United States of America (including the States and the District of Columbia); and its “ possessions ” include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the Northern Mariana Islands.

We further certify that (i) we are not making available herewith for exchange (or, if relevant, collection of any interest) any portion of the temporary global Security representing the above-captioned Securities excepted in the above-referenced certificates of Member Organizations and (ii) as of the date hereof we have not received any notification from any of our Member Organizations to the effect that the statements made by such Member Organizations with respect to any portion of the part submitted herewith for exchange (or, if relevant, collection of any interest) are no longer true and cannot be relied upon as of the date hereof.

We understand that this certification is required in connection with certain tax legislation in the United States. If administrative or legal proceedings are commenced or threatened in connection with which this certificate is or would be relevant, we irrevocably authorize you to produce this certificate or a copy thereof to any interested party in such proceedings.

Exhibit A-2, Page 1

Dated:            ,         .

[To be dated no earlier than the earlier of the Exchange Date or the relevant Interest Payment Date occurring prior to the Exchange Date, as applicable.]

Exhibit A-2, Page 2

Exhibit 4.3

EXECUTION VERSION

MEDNAX, INC.

TO

U.S. BANK NATIONAL ASSOCIATION,

As Trustee

GUARANTEED TO THE EXTENT SET FORTH HEREIN BY THE GUARANTORS NAMED

HEREIN

FIRST SUPPLEMENTAL INDENTURE

Dated as of December 8, 2015

to the

INDENTURE

Dated as of December 8, 2015

5.25% SENIOR NOTES DUE 2023

TABLE OF CONTENTS

i

ii

iii

FIRST SUPPLEMENTAL INDENTURE

5.25% Senior Notes due 2023

THIS FIRST SUPPLEMENTAL INDENTURE, dated as of December 8, 2015 (this “ Supplemental Indenture ”), by and among MEDNAX, INC. , a Florida Corporation (the “ Company ”), the guarantors listed on Schedule A hereto, as such schedule may be amended form time to time (collectively, the “ Guarantors ” and each, a “ Guarantor ”), and U.S. BANK NATIONAL ASSOCIATION , a national banking association, as Trustee hereunder (the “ Trustee ”).

RECITALS OF THE COMPANY:

WHEREAS, the Company and the Trustee have heretofore entered into an Indenture dated as of December 8, 2015 (as it may be amended or supplemented, the “ Base Indenture ” and, together with this Supplemental Indenture, the “ Indenture ”) providing for (i) the issuance by the Company from time to time of its senior debt securities evidencing its unsecured and unsubordinated indebtedness, in an unlimited aggregate principal amount, in one or more series (collectively, the “ Securities ” and each, a “ Security ”) and (ii) the Guarantee of such Securities by the Guarantors;

WHEREAS, Section 901(7) of the Base Indenture provides for the Company, the Guarantors and the Trustee to enter into an indenture supplemental to the Base Indenture to establish the form and terms of Securities of any series as provided by Sections 201 and 301 of the Base Indenture and the form and terms of Guarantees as provided by Sections 1701 and 301 of the Base Indenture, without the consent of the Holders of any Securities;

WHEREAS, for its lawful corporate purposes, the Company has duly authorized the issue of up to $750,000,000 aggregate principal amount of its 5.25% Senior Notes due 2023 (together with the Guarantees thereof, the “ Notes ”);

WHEREAS, in order to provide the terms and conditions upon which the Notes are to be authenticated, issued and delivered, the Board of Directors of the Company and each of the Guarantors has duly authorized the execution and delivery of this Supplemental Indenture; and

WHEREAS, the Notes, the certificate of authentication to be borne by the Notes, and a form of assignment are to be substantially in the forms hereinafter provided for;

WHEREAS, all acts and things necessary to make this Supplemental Indenture a valid agreement of each of the Company and the Guarantors according to its terms have been done and performed; and

WHEREAS, all acts and things necessary to make the Notes, when executed by the Company and authenticated and delivered by the Trustee as provided in the Base Indenture and this Supplemental Indenture, the valid and binding obligations of the Company have been done and performed.

NOW THEREFORE, SUPPLEMENTAL INDENTURE WITNESSETH:

For and in consideration of the premises and of the covenants contained herein and in the Base Indenture, the Company, the Guarantors and the Trustee covenant and agree, for the equal and proportionate benefit of all Holders of the Notes issued on or after the date of this Supplemental Indenture, as follows:

ARTICLE I

RELATION TO BASE INDENTURE; DEFINITIONS

Section 1.01. Relation to Base Indenture . The changes, modifications and supplements to the Base Indenture effected by this Supplemental Indenture shall be applicable only with respect to, and shall only govern the terms of, the Notes, which may be issued from time to time, and shall not apply to any other Securities that may be issued under the Base Indenture unless a supplemental indenture with respect to such other Securities specifically incorporates such changes, modifications and supplements. The provisions of this Supplemental Indenture shall supersede any corresponding or conflicting provisions and definitions in the Base Indenture.

Section 1.02. Definitions . For all purposes of this Supplemental Indenture, except as otherwise expressly provided for or unless the context otherwise requires:

(a) Capitalized terms used but not defined herein shall have the respective meanings assigned to them in the Base Indenture;

(b) Terms defined both herein and in the Base Indenture shall have the meanings assigned to them herein;

(c) All references herein to Articles and Sections, unless otherwise specified, refer to the corresponding Articles and Sections of this Supplemental Indenture; and

(d) All other terms used in this Supplemental Indenture, which are defined in the Trust Indenture Act or which are by reference therein defined in the Securities Act (except as herein otherwise expressly provided or unless the context otherwise requires) shall have the meanings assigned to such terms in said Trust Indenture Act and in said Securities Act as in force at the date of the execution of this Supplemental Indenture. The words “herein,” “hereof,” “hereunder,” and words of similar import refer to this Supplemental Indenture as a whole and not to any particular Article, Section or other subdivision. The terms defined in this Article include the plural as well as the singular.

“ Additional Notes ” shall have the meaning specified in Section 2.07.

“ Affiliate ” of any specified Person means any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For purposes of this definition, “ control ,” as used with respect to any Person, means the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of such Person, whether through the ownership of voting securities, by agreement or otherwise. For purposes of this definition, the terms “ controlling ,” “ controlled by ” and “ under common control with ” have correlative meanings.

“ Agent Members ” shall have the meaning specified in Section 2.05(a).

“ Applicable Redemption Premium ” means, with respect to any Note on any redemption date, the excess of

(a) the present value at such redemption date of (x) the redemption price of such note if such Note were redeemed on December 1, 2018 plus (y) all required and unpaid interest payments due on such Note through December 1, 2018, in each case computed using a discount rate equal to the Treasury Rate at such redemption date plus 50 basis points, over

2

(b) the then-outstanding principal amount of the Note.

“ Attributable Indebtedness ” means, with respect to any Sale and Lease-Back Transaction, at the time of determination, the lesser of (1) the sale price of the property so leased multiplied by a fraction the numerator of which is the remaining portion of the base term of the lease included in such transaction and the denominator of which is the base term of such lease, and (2) the total obligation (discounted to the present value at the implicit interest factor, determined in accordance with GAAP, included in the rental payments) of the lessee for rental payments (other than amounts required to be paid on account of property taxes as well as maintenance, repairs, insurance, water rates and other items which do not constitute payments for property rights) during the remaining portion of the base term of the lease included in such transaction. Notwithstanding the foregoing, if such Sale and Lease-Back Transaction results in a Capital Lease Obligation, the amount of Indebtedness represented thereby will be determined in accordance with the definition of “Capital Lease Obligation.”

“ Authentication Order ” has the meaning set forth in Section 2.01.

“ Beneficial Owner ” has the meaning assigned to such term in Rule 13d-3 and Rule 13d-5 under the Exchange Act, except that in calculating the beneficial ownership of any particular “person” (as that term is used in Section 13(d)(3) of the Exchange Act), such “person” will be deemed to have beneficial ownership of all securities that such “person” has the right to acquire by conversion or exercise of other securities, whether such right is currently exercisable or is exercisable only upon the occurrence of a subsequent condition. The terms “ Beneficially Owns ” and “ Beneficially Owned ” have a corresponding meaning.

“ Capital Lease Obligation ” means, at the time any determination is to be made, the amount of the liability in respect of a capital lease that would at that time be required to be capitalized and reflected as a liability on a balance sheet (excluding the footnotes thereto) prepared in accordance with GAAP.

“ Change of Control ” means the occurrence of any of the following:

(a) the direct or indirect sale, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the properties or assets of the Company and its Subsidiaries taken as a whole (other than any Qualified Securitization Financing in accordance with the terms of the Indenture) to any “person” (as that term is used in Section 13(d)(3) of the Exchange Act);

(b) the adoption of a plan relating to the liquidation or dissolution of the Company; or

(c) the Company becoming aware of (by way of a report or other filing pursuant to Section 13(d) of the Exchange Act, proxy, written notice or otherwise) the consummation of any transaction (including, without limitation, any merger or consolidation) the result of which is that any “person” (as defined above) becomes the Beneficial Owner, directly or indirectly, of more than 50% of the Voting Stock of the Company, measured by voting power rather than number of shares.

“ Change of Control Offer ” has the meaning set forth in Section 9.02.

“ Change of Control Payment ” has the meaning set forth in Section 9.02.

3

“ Change of Control Payment Date ” has the meaning set forth in Section 9.02.

“ Close of Business ” means 5:00 p.m. (New York City time).

“ Company ” means the Person named as the “Company” in the first paragraph of this Supplemental Indenture until a successor corporation shall have become such pursuant to the applicable provisions of the Indenture, and thereafter “Company” shall mean such successor corporation.

“ Consolidated Net Income” means, for any period, with respect to any Person, net income attributable to such Person and its Subsidiaries on a consolidated basis, as determined in accordance with GAAP; provided that Consolidated Net Income for any such period shall exclude, without duplication,

(a) any net after-tax extraordinary gains, losses or charges,

(b) the cumulative effect of a change in accounting principle(s) during such period,

(c) any net after-tax gains or losses realized upon the disposition of assets outside the ordinary course of business (including any gain or loss realized upon the disposition of any Capital Stock of any Person) and any net gains or losses on disposed, abandoned and discontinued operations (including in connection with any disposal thereof) and any accretion or accrual of discounted liabilities,

(d) the income or loss of any Person accrued prior to the date it becomes a Subsidiary of such Person or is merged into or consolidated with such Person or any Subsidiary of such Person or the date that such other Person’s assets are acquired by such Person or any Subsidiary of such Person,

(e) non-cash compensation charges, including any such charges arising from stock options, restricted stock grants or other equity incentive programs of the Company or any direct or indirect parents in connection with the Transactions,

(f) (i) any charges or expenses pursuant to any management equity plan or stock option plan or any other management or employee benefit plan or agreement, any stock subscription or shareholder agreement or any distributor equity plan or agreement and (ii) any charges, costs, expenses, accruals or reserves in connection with the rollover, acceleration or payout of Capital Stock held by management of the Company and its Subsidiaries; provided , however , that in order to exclude from Consolidated Net Income any cash charges, cash costs and cash expenses arising under (i) or (ii) they must be funded with cash proceeds contributed to the capital of the Company or any direct or indirect parent of the Company or net cash proceeds of an issuance of Capital Stock (other than Disqualified Stock) of the Company or any direct or indirect parent of the Company,

(g) any net income or loss attributable to the early extinguishment of Indebtedness,

(h) effects of any adjustments (including the effects of such adjustments pushed down to the Subsidiaries of the Company) in the inventory, property and equipment, software, goodwill, other intangible assets, in-process research and development, deferred revenue, debt line items, any earn-out obligations and any other non-cash charges (other than the amortization of unfavorable operating leases) in such Person’s consolidated financial statements pursuant to GAAP resulting from the application of purchase accounting in relation to any consummated acquisition or any joint venture investments or the amortization or write-off of any such amounts,

4

(i) any impairment charge or asset write-off or write-down, including impairment charges or asset write-offs or write-downs related to goodwill, intangible assets, long-lived assets, investments in debt and equity securities or obligations (including any losses with respect to obligations of customers, account debtors and suppliers in bankruptcy, insolvency or similar proceedings) or as a result of a change in law or regulation, in each case, pursuant to GAAP,

(j) any net gain or loss resulting from currency translation gains or losses related to currency remeasurements of Indebtedness (including any net loss or gain resulting from hedge agreements for currency exchange risk) and any foreign currency translation gains or losses,

(k) any net unrealized gains and losses resulting from obligations under Hedging Obligations or other derivative instruments entered into for the purpose of hedging interest rate risk and the application of Financial Accounting Standards Board Accounting Standards Codification Topic 815, “Derivatives and Hedging,” as such Topic may be amended, updated, or supplemented from time to time,

(l) any fines, penalties or settlements payable to any governmental authority or agency (other than in respect of taxes), and

(m) Transaction Expenses.

In addition, to the extent not already included in the Consolidated Net Income of such Person and its Subsidiaries, notwithstanding anything to the contrary in the foregoing (but without duplication of any of the foregoing exclusions and adjustments), Consolidated Net Income shall include the amount of proceeds received from business interruption insurance in respect of expenses, charges or losses with respect to business interruption and reimbursements of any expenses and charges to the extent reducing Consolidated Net Income that are actually received and covered by indemnification or other reimbursement provisions or, so long as the Company has made a determination that there exists reasonable expectation that such amount will in fact be reimbursed by the insurer and only to the extent that such amount is in fact reimbursed within 365 days of the date of such determination (with a reversal in the applicable future period for any amount so included to the extent not so reimbursed within such 365-day period). Consolidated Net Income shall exclude any income or loss attributable to a joint venture or other investee (other than dividends or distributions received in cash or cash equivalents from such joint venture or investee by the Company or a Subsidiary) to the extent the financial results of such joint venture or investee are not consolidated with the financial results of the Company.

“ Consolidated Secured Debt Ratio ” means, as of any date of determination, the ratio of (1) the aggregate amount of Funded Debt then outstanding that is secured by Liens (excluding Permitted Liens other than Liens incurred pursuant to clauses (12) or (27) of the definition thereof) as of such date of determination to (2) EBITDA for the most recent four consecutive fiscal quarters for which internal consolidated financial statements of the Company are available, in each case, for the Company and its Subsidiaries with pro forma and other adjustments to each of Funded Debt and EBITDA to reflect any incurrences or repayments of Funded Debt and any acquisitions or dispositions of businesses or assets since the beginning of such four consecutive fiscal quarter period (which pro forma and other adjustments will be determined in good faith by a responsible financial or accounting officer of the Company and shall not be required to be made in accordance with Regulation S-X promulgated by the SEC) provided that, without duplication, the EBITDA attributable to discontinued operations, as determined in accordance with the GAAP, will be excluded.

5

In the event that the Company or any Subsidiary incurs, assumes, guarantees, redeems, retires or extinguishes any Indebtedness (other than, for purposes of calculating EBITDA only, Indebtedness incurred under any revolving credit facility unless such Indebtedness has been permanently repaid and has not been replaced) subsequent to the commencement of the period for which the Consolidated Secured Debt Ratio is being calculated but prior to or simultaneously with the event for which the calculation of the Consolidated Secured Debt Ratio is made (the “ Consolidated Secured Debt Ratio Calculation Date ”), then the Consolidated Secured Debt Ratio shall be calculated giving pro forma effect to such incurrence, assumption, guarantee, redemption, retirement or extinguishment of Indebtedness, as if the same had occurred at the beginning of the applicable four-quarter period.

For purposes of making the computation referred to above, investments, acquisitions, dispositions, mergers, amalgamations, consolidations and discontinued operations (as determined in accordance with GAAP), in each case with respect to an operating unit of a business, and other operational changes that the Company or any of the Subsidiaries has determined to make and/or made during the four-quarter reference period or subsequent to such reference period and on or prior to or simultaneously with the Consolidated Secured Debt Ratio Calculation Date shall be calculated on a pro forma basis in accordance with GAAP assuming that all such investments, acquisitions, dispositions, mergers, amalgamations, consolidations, discontinued operations and other operational changes (and the change in EBITDA resulting therefrom) had occurred on the first day of the four-quarter reference period. If since the beginning of such period any Person that subsequently became a Subsidiary or was merged with or into the Company or any of the Subsidiaries since the beginning of such period shall have made any investment, acquisition, disposition, merger, amalgamation, consolidation, discontinued operation or operational change, in each case with respect to an operating unit of a business, that would have required adjustment pursuant to this definition, then the Consolidated Secured Debt Ratio shall be calculated giving pro forma effect thereto for such period as if such investment, acquisition, disposition, merger, consolidation, discontinued operation or operational change had occurred at the beginning of the applicable four-quarter period.

For purposes of this definition, whenever pro forma effect is to be given to a transaction, the pro forma calculations shall be made in good faith by a responsible financial or accounting officer of the Company. If any Indebtedness bears a floating rate of interest and is being given pro forma effect, the interest on such Indebtedness shall be calculated as if the rate in effect on the Consolidated Secured Debt Ratio Calculation Date had been the applicable rate for the entire period (taking into account any Hedging Obligations applicable to such Indebtedness). Any such pro forma calculation may include adjustments appropriate, in the reasonable determination of the Company as set forth in an Officer’s Certificate, to reflect operating expense reductions and other financial and operating improvements or synergies reasonably expected to result from any acquisition, amalgamation, merger or operational change (including, to the extent applicable, from the Transactions).

Notwithstanding anything to the contrary, the aggregate amount of projected operating expense reductions, operating improvements and synergies included in any such pro forma calculation shall not exceed 15% of EBITDA (calculated before giving effect to such add-backs) for any four consecutive quarter period (which adjustments may be incremental to pro forma adjustments made pursuant to the immediately preceding paragraph).

For purposes of this definition, any amount in a currency other than U.S. dollars will be converted to U.S. dollars based on the average exchange rate for such currency for the most recent twelve month period immediately prior to the date of determination determined in a manger consistent with that used in calculating EBITDA for the applicable period.

6

Notwithstanding anything in this definition to the contrary, when calculating the Consolidated Secured Debt Ratio in connection with a Limited Condition Transaction, at the option of the Company (the Company’s election to exercise such option in connection with any Limited Condition Transaction, an “ LCT Election ”), the date of determination of whether any action is permitted hereunder shall be deemed to be the date the definitive agreements for such Limited Condition Transaction are entered into (the “ LCT Test Date ”), and if, after giving pro forma effect to the Limited Condition Transaction and the other transactions to be entered into in connection therewith (including any incurrence of Indebtedness and the use of proceeds thereof) as if they had occurred on the first day of the most recent test period ending prior to the LCT Test Date (except with respect to any incurrence or repayment of Indebtedness for purposes of the calculation of any leverage-based test or ratio, which shall in each case be treated as if they had occurred on the last day of such test period), the Company would have been permitted to take such action on the relevant LCT Test Date in compliance with such ratio, such ratio shall be deemed to have been complied with. For the avoidance of doubt, if the Company has made an LCT Election and such ratio for which compliance was determined or tested as of the LCT Test Date is exceeded as a result of fluctuations in such ratio including due to fluctuations in the total assets of the Company or the person subject to such Limited Condition Transaction, at or prior to the consummation of the relevant transaction or action, such ratio will not be deemed to have been exceeded as a result of such fluctuations.

If the Company has made an LCT Election for any Limited Condition Transaction, then in connection with any calculation of such ratio with respect to the incurrence of Liens (a “ Subsequent Transaction ”) following the relevant LCT Test Date and prior to the earlier of the date on which such Limited Condition Transaction is consummated or the date that the definitive agreement or irrevocable notice for such Limited Condition Transaction is terminated or expires without consummation of such Limited Condition Transaction, for purposes of determining whether such Subsequent Transaction is permitted under the Indenture, such ratio shall be required to be satisfied on a pro forma basis (i) assuming such Limited Condition Transaction and other transactions in connection therewith (including any incurrence of indebtedness and the use of proceeds thereof) have been consummated and (ii) assuming such Limited Condition Transaction and other transactions in connection therewith (including any incurrence of indebtedness and the use of proceeds thereof) have not been consummated.

“ Covenant Defeasance ” shall have the meaning set forth in Section 12.03.

“ Credit Agreement ” means the Credit Agreement, dated as of October 29, 2014, by and among MEDNAX, Inc., the lenders parties thereto, JP Morgan Chase Bank, N.A., as administrative agent, and the other agents, arrangers and lenders named therein, including any related notes, guarantees, collateral documents, instruments and agreements executed in connection therewith, and in each case as amended (including, without limitation, as to principal amount, changes to maturity or borrower or guarantor), modified, renewed, refunded, replaced or refinanced from time to time (whether or not with the original agents or lenders and whether or not contemplated under the original agreement relating thereto).

“ Debt Facilities ” means one or more debt facilities (including, without limitation, the Credit Agreement), commercial paper facilities or indentures, in each case with banks, institutional or other lenders or a trustee providing for revolving credit loans, term loans, receivables financing (including through the sale of receivables to such lenders or to special purpose entities formed to borrow from such lenders against such receivables), letters of credit or debt securities, in each case, as amended (including, without limitation, as to principal amount), restated, modified, renewed, refunded, replaced or refinanced in whole or in part from time to time (whether or not with the original agents or lenders or parties and whether or not contemplated under the original agreement relating thereto).

“ Default ” means any event that is, or with the passage of time or the giving of notice or both would be, an Event of Default.

7

“ Depositary ” means, with respect to the Global Notes, DTC or another Person designated as depository by the Company, which Person must be a clearing agency registered under the Exchange Act.

“ Disqualified Stock ” means any Capital Stock that, by its terms (or by the terms of any security into which it is convertible, or for which it is exchangeable, in each case at the option of the holder of the Capital Stock), or upon the happening of any event, matures or is mandatorily redeemable, pursuant to a sinking fund obligation or otherwise, or redeemable at the option of the holder of the Capital Stock, in whole or in part, on or prior to the date that is 91 days after the date on which the Notes mature.

“ EBITDA ” means, for any period, the sum of (a) Consolidated Net Income, plus (b) an amount which, in the determination of Consolidated Net Income for such period, has been deducted in calculating Consolidated Net Income (except with respect to subclauses (viii) and (xiv) below) for, without duplication,

(i) interest expense and, to the extent not reflected in such interest expense, any losses with respect to obligations under any Hedging Obligations or other derivative instruments (including any applicable termination payment) entered into for the purpose of hedging interest rate risk, any bank and financing fees, any costs of surety bonds in connection with financing activities, commissions, discounts and other fees and charges owed with respect to letters of credit, bankers’ acceptance or any similar facilities or financing and Hedging Obligations,

(ii) provision for taxes based on income or profits or capital, including, without limitation, federal, state, provincial, franchise, excise, withholding and similar taxes, including any penalties and interest relating to any tax examinations,

(iii) the total amount of depreciation and amortization expense, including expenses related to Capital Lease Obligations,

(iv) to the extent not prohibited hereunder, any costs and expenses incurred in connection with any investment, acquisition, disposition, equity issuance or debt issuance (including fees and expenses related to the Credit Agreement and any amendments, supplements and modifications thereof), including the amortization of deferred financing fees, debt issuance costs, commissions, fees and expenses (in each case, whether or not consummated),

(v) any costs, charges, accruals and reserves in connection with any integration, transition, facilities openings, vacant facilities, consolidations, relocations, closing, acquisitions, joint venture investments and dispositions, business optimization (including relating to systems design, upgrade and implementation costs), entry into new markets, including consulting fees, restructuring, severance, severance and curtailments or modifications to pension or postretirement employee benefit plans,

(vi) the amount of any expense or deduction associated with income of any Subsidiaries attributable to non-controlling interests or minority interest of third parties,

(vii) any non-cash charges, losses or expenses (including tax reclassification related to tax contingencies in a prior period and, subject to clause (d) below, including accruals and reserves in respect of potential or future cash items), but excluding, any non-cash charge relating to impairment, write-offs or write-downs of inventory or accounts receivable or representing amortization of a prepaid cash item that was paid but not expensed in a prior period,

8

(viii) cash actually received (or any netting arrangements resulting in reduced cash expenditures) during such period, and not included in Consolidated Net Income in any period, to the extent that the non-cash gain relating to such cash receipt or netting arrangement was deducted in the calculation of EBITDA pursuant to paragraph (c) below for any previous period and not added back,

(ix) unusual or non-recurring losses or charges,

(x) any net after-tax loss from the early extinguishment of Indebtedness or hedging obligations or other derivative instruments,

(xi) mark-to-market losses recognized pursuant to FASB ASC Topic 815 or any successor thereof, (xii) to the extent reimbursement therefor is actually received by the Company or a Subsidiary, expenses incurred to the extent covered by indemnification provisions in any agreement in connection with any acquisition,

(xiii) cash expenses incurred during such period in connection with casualty events to the extent such expenses are reimbursed in cash by insurance during such period, and

(xiv) the amount of “run-rate” cost savings and synergies projected by the Company in good faith to be realized as a result of specified actions taken or expected in good faith to be taken within 12 months following the end of such period (calculated on a pro forma basis as though such cost savings and synergies had been realized on the first day of such period), net of the amount of actual benefits realized during such period from such actions; provided that such cost savings and synergies are reasonably identifiable, factually supportable and certified by the chief financial officer or treasurer of the Company (it is understood and agreed that “run-rate” means the full recurring benefit for a period that is associated with any action taken or expected to be taken, provided that such benefit is expected to be realized within 12 months of taking such action), minus

(c) any non-cash items of income included during such period (other than with respect to (A) amortization of unfavorable operating leases and (B) payments actually received and the reversal of any accrual or reserve to the extent not previously added back in any prior period), minus (d) all cash payments made during such period on account of non-cash charges added to EBITDA pursuant to clause (b)(vii) above in such period or in a prior period; minus (e) the amount of income consisting of or associated with losses of any Subsidiary attributable to non-controlling interests or minority interests of third parties, minus (f) non-recurring or unusual gains.

“ Equity Holder ” shall mean any Person that owns Capital Stock of any Practice that is a party to any Management Agreement.

“ Equity Offering ” means any public or private sale by the Company for cash of its common stock or preferred stock (excluding Disqualified Stock).

“ Event of Default ” means, with respect to the Notes, any event specified in Section 5.01, continued for the period of time, if any, and after the giving of notice, if any, therein designated.

“ Financial Reports ” has the meaning set forth in Section 4.03.

“ Funded Debt ” means any Indebtedness for money borrowed (other than in connection with a Qualified Securitization Financing), whether created, issued, incurred, assumed or Guaranteed,

9

that would, in accordance with GAAP, be classified as long-term debt, but in any event including all Indebtedness for money borrowed, whether secured or unsecured, maturing more than one year, or extendible at the option of the obligor to a date more than one year, after the date of determination thereof (excluding any amount thereof included in current liabilities other than Indebtedness incurred under a revolving credit facility).

“ Global Note ” shall have the meaning specified in Section 2.05(a).

“ Global Note Legend ” means a legend substantially in the form set forth in Exhibit C hereto.

“ Guarantee ” means a guarantee, direct or indirect, in any manner including, without limitation, by way of a pledge of assets or through letters of credit or reimbursement agreements in respect thereof, of all or any part of any Indebtedness, other than a guarantee by endorsement of negotiable instruments for collection in the ordinary course of business.

“ Guarantors ” means each Subsidiary of the Company that executes this Supplemental Indenture as a guarantor on the Issue Date and each other Subsidiary of the Company that thereafter guarantees the Notes pursuant to the terms of the Indenture; provided that upon the release and discharge of any Person from its Guarantee of the Notes in accordance with the Indenture, such Person shall cease to be a Guarantor.

“ Hedging Obligations ” means, with respect to any specified Person, the obligations of such Person under:

(a) interest rate swap agreements, interest rate cap agreements and interest rate collar agreements; and

(b) other agreements or arrangements designed to protect such Person against fluctuations in interest rates, commodity prices or foreign exchange rates.

“ Indebtedness ” means, with respect to any specified Person, any indebtedness of such Person in respect of borrowed money or evidenced by bonds, notes, debentures or similar instruments.

Notwithstanding anything in the foregoing to the contrary, Indebtedness shall not include trade payables or accrued expenses for property or services incurred in the ordinary course of business, any liability for federal, state, local or other taxes or any settlements or judgments relating to governmental litigations and/or investigations.

The amount of any Indebtedness issued with original issue discount will be the accreted value of such Indebtedness.

“ Initial Notes ” means the Notes issued on the date of this Supplemental Indenture.

“ Initial Purchasers ” means J.P. Morgan Securities LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated, U.S. Bancorp Investments, Inc., Wells Fargo Securities, LLC, BBVA Securities Inc., Fifth Third Securities, Inc., Mitsubishi UFJ Securities (USA), Inc., Mizuho Securities USA Inc., RBS Securities Inc. and SunTrust Robinson Humphrey, Inc.

10

“ Institutional Accredited Investor ” means an institution that is an “accredited investor” as defined in Rule 501(a)(1), (2), (3) or (7) under the Securities Act.

“ interest ” means, when used with reference to the Notes, any interest payable under the terms of the Notes.

“ Interest Payment Date ” means June 1 and December 1 of each year, beginning on June 1, 2016.

“ Issue Date” means December 8, 2015.

“ Legal Defeasance ” shall have the meaning set forth in Section 12.02.

“ Lien ” means any liens, mortgages, pledges, security interests, charges or other encumbrances.

“ Limited Condition Transaction ” means an acquisition of any business, assets or properties of any nature whatsoever or Sale and Lease-Back Transaction whose consummation is not conditioned on the availability of, or on obtaining, third party financing, investment or redemption or repayment of indebtedness requiring irrevocable notice in advance of such redemption or repayment.

“ Limited Originator Recourse ” means a letter of credit, cash collateral account or other credit enhancement issued or provided for a similar purpose in connection with the incurrence of Indebtedness by a Securitization Subsidiary under a Qualified Securitization Financing.

“ Manager ” shall mean, with respect to any particular Management Agreement, the Company or its applicable Subsidiary that is a party to such Management Agreement as the administrative manager of the relevant medical practice or practices.

“ Management Agreement ” shall mean each agreement pursuant to which a Manager agrees to provide certain administrative services to a Practice.

“ Maturity Date ” means December 1, 2023.

“ Note ” or “ Notes ” shall have the meaning specified in the recitals of this Supplemental Indenture, and shall include any Additional Notes issued pursuant to Section 2.07.

“ Noteholder ” or “ Holder ” or “ holder ,” as applied to any Note, or other similar terms (but excluding the term “beneficial holder”), means any person in whose name at the time a particular Note is registered on the Security Register.

“ Offering Memorandum” means the Offering Memorandum of the Company, dated December 3, 2015, relating to the offering of the Notes.

“ Payment Default ” shall have the meaning set forth in Section 5.01(d).

“ Permitted Liens ” means:

(1) Liens in favor of the Company or any Subsidiary of the Company;

(2) Liens on property or Capital Stock of a Person existing at the time of the acquisition of such Person (whether by merger or consolidation or acquisition of stock or assets or otherwise)

11

by the Company or any Subsidiary of the Company ; provided , however , that (a) the Indebtedness secured by such Lien was not incurred in contemplation of such acquisition, merger or consolidation in which such Person becomes a Subsidiary of the Company and (b) such Lien does not apply to any other property or assets owned by the Company or any Guarantor;

(3) Liens on property or Capital Stock existing at the time of acquisition thereof (whether by acquisition of stock or assets or otherwise) by the Company or any Subsidiary of the Company; provided that (a) the Indebtedness secured by the Lien was not incurred in contemplation of such acquisition and (b) such Lien does not apply to any other property or assets owned by the Company or any Guarantor;

(4) Liens securing all or any part of the purchase price of property acquired or cost of construction of property or cost of additions, substantial repairs, alterations or improvements of property, if the Indebtedness and the related Liens are incurred within 18 months of the later of such acquisition of property or completion of construction or additions, repairs, alterations or improvements, as the case may be, of such property;

(5) Liens existing on the Issue Date;

(6) Liens for taxes, assessments or governmental charges or claims which are not due and payable except for those being contested in good faith and by appropriate actions diligently conducted, if adequate reserves with respect thereto are maintained on the books of the applicable Person to the extent required in accordance with GAAP;

(7) Liens securing any Hedging Obligations of the Company or any Subsidiary of the Company incurred in the ordinary course of business and not for speculative purposes;

(8) statutory Liens and other Liens imposed by law incurred in the ordinary course of business for sums not yet delinquent or being contested in good faith, if the Company or any applicable Subsidiaries shall have made any reserves or other appropriate provision required by GAAP and Liens arising in the ordinary course of business by virtue of any contractual, provision relating to landlord’s Liens arising under leases of real property in the ordinary course of business;

(9) Liens incurred or deposits made in the ordinary course of business in connection with workers’ compensation, unemployment insurance and other types of social security, or with respect to regulatory requirements, letters of credit, bankers’ acceptances, completion guarantees, or to secure the performance of tenders, other trade contracts (excluding Indebtedness), statutory obligations, surety and appeal bonds, bids, leases, government contracts, performance, return-of-money bonds, participation in government reimbursement programs and other similar obligations;

(10) Liens arising out of judgments or awards, so long as any appropriate legal proceedings which may have been duly initiated for the review of such judgment shall not have been finally terminated or the period within which such proceedings may be initiated shall not have expired;

(11) easements, restrictions (including zoning and land-use restrictions), rights-of-way, encroachments, protrusions, and such other encumbrances or charges against, and minor title defects affecting, real property that, in the aggregate, do not materially interfere with the ordinary conduct of the business of the Company and its Subsidiaries;

12

(12) Liens given to secure Capital Lease Obligations and purchase money obligations (including obligations in respect of mortgage, industrial revenue bond, industrial development bond, and similar financings) to finance the purchase, repair or improvement of fixed or capital assets (and refinancings thereof) as permitted under the Credit Agreement in an aggregate amount not to exceed the greater of (A) $125 million and (B) 3.0% of Total Assets as of the end of a period of four (4) consecutive fiscal quarters; provided that such Liens do not extend to any property or asset (except for accessions thereto) which is not leased property subject to such Capital Lease Obligation or property financed by such purchase money obligations, as the case may be, and the proceeds and products thereof;

(13) bankers’ liens with respect to the right of set-off arising in the ordinary course of business against amounts maintained in bank accounts or certificates of deposit in the name of the Company or any Subsidiary of the Company;

(14) any Lien granted to the trustee pursuant to the terms of the Indenture and any substantially equivalent Lien granted to the respective trustees under the indentures for other debt securities of the Company;

(15) any Lien consisting of a right of first refusal or option to purchase an ownership interest in any Subsidiary or to purchase assets of the Company or any Subsidiary, which right of first refusal or option is entered into in the ordinary course of business;

(16) Liens in favor of the United States of America or any state thereof, or any department, agency or instrumentality or political subdivision thereof, to secure partial, progress, advance or other payments;

(17) Liens on the Securitization Assets arising in connection with a Qualified Securitization Financing;

(18) (i) leases, licenses, subleases or sublicenses granted to others in the ordinary course of business that do not (x) interfere in any material respect with the business of the Company or any Guarantor or (y) secure any Indebtedness for borrowed money or (ii) the rights reserved or vested in any Person by the terms of any lease, license, franchise, grant or permit held by the Company or any of its Subsidiaries or by a statutory provision, to terminate any such lease, license, franchise, grant or permit, or to require annual or periodic payments as a condition to the continuance thereof;

(19) Liens arising from Uniform Commercial Code financing statement filings regarding operating leases or consignments entered into by the Company or any Subsidiary in the ordinary course of business;

(20) Liens (i) of a collection bank arising under Section 4-210 of the Uniform Commercial Code on items in the course of collection, (ii) attaching to commodity trading accounts or other commodities brokerage accounts incurred in the ordinary course of business; and (iii) in favor of a banking institution arising as a matter of law encumbering deposits (including the right of set-off) and which are customary in the banking industry;

(21) Liens encumbering reasonable customary initial deposits and margin deposits and similar Liens attaching to commodity trading accounts or other brokerage accounts incurred in the ordinary course of business and not for speculative purposes;

13

(22) Liens that are contractual rights of set-off (i) relating to the establishment of depository relations with banks not given in connection with the issuance of Indebtedness, (ii) relating to pooled deposit or sweep accounts of the Company or any Guarantor to permit satisfaction of overdraft or similar obligations incurred in the ordinary course of business or (iii) relating to purchase orders and other agreements entered into with customers of the Company or any Guarantor in the ordinary course of business;

(23) Liens in favor of customs and revenue authorities imposed by applicable law arising in the ordinary course of business in connection with the importation of goods and securing obligations, in each case for sums not overdue by more than thirty (30) days (or if more than thirty (30) days overdue, no action has been taken to enforce such Lien) or which are being contested in good faith by appropriate proceedings promptly instituted and diligently conducted;

(24) Liens on securities which are the subject of repurchase agreements entered into in the ordinary course of business;

(25) Liens on insurance policies and the proceeds thereof to secure the financing of such premiums and assignments of insurance or condemnation proceeds provided to landlords (or their mortgagees) pursuant to the terms of any lease and Liens or rights reserved in any lease for rent or for compliance with the terms of such lease;

(26) Liens arising out of conditional sale, title retention, consignment and similar arrangements for sales of goods entered into in the ordinary course of business;

(27) other Liens securing obligations incurred in the ordinary course of business which obligations do not exceed $100 million at any one time outstanding;

(28) restrictions on transfers of securities imposed by applicable securities laws or laws governing the practice of medicine;

(29) Liens arising under Restrictive Agreements;

(30) Any interest or title of a lessor, licensor or sublessor under any lease, license or sublease entered into by the Company or any Subsidiary thereof in the ordinary course of its business and covering only the assets so leased, licensed or subleased;

(31) deposits to secure the performance of bids, trade contracts (other than for borrowed money), leases, statutory obligations, surety and appeal bonds, performance bonds and other obligations of a like nature incurred in the ordinary course of business; and

(32) Liens to secure any refinancing, refunding, extension, renewal or replacement (or successive refinancing, refunding, extensions, renewals or replacements) as a whole or in part, of any Indebtedness secured by any Lien permitted by the Indenture; provided , however , that the principal amount of Indebtedness secured thereby and not otherwise authorized above shall not exceed the maximum amount of Indebtedness allowable under the applicable agreement or credit facility providing for or evidencing such Indebtedness, plus any premium or fee payable in connection with any such extension, renewal, replacement or refunding, at the time of such extension, renewal, replacement or refunding.

“ Physical Notes ” means certificated Notes in registered form.

14

“ Practice ” shall mean that Person party to any Management Agreement that is not the Manager under such Management Agreement and that engages in the practice of providing medical services or of owning the Capital Stock of other Persons engaged in the practice of providing medical services.

“ Principal Personal & Real Property ” means any personal or real property (including, for the avoidance of doubt, accounts receivable and inventory) other than property that, in the opinion of the Company’s Board of Directors, expressed in a resolution, is not of material importance to the total business conducted by the Company and its Subsidiaries, taken as a whole.

“ Private Placement Legend ” means a legend substantially in the form set forth in Exhibit B hereto.

“ Qualified Institutional Buyer ” shall have the meaning specified in Rule 144A promulgated under the Securities Act.

“ Qualified Securitization Financing ” means any Securitization Financing of a Securitization Subsidiary that meets the following conditions: (a) such Qualified Securitization Financing (including financing terms, covenants, termination events and other provisions) is in the aggregate economically fair and reasonable to the Company and the Securitization Subsidiary, (b) all sales and/or contributions of Securitization Assets and related assets to the Securitization Subsidiary are made at fair market value and (c) the financing terms, covenants, termination events and other provisions thereof, including any Standard Securitization Undertakings, shall be market terms, in each case as determined by the Company in good faith. The grant of a security interest in any Securitization Assets of the Company or any of its Subsidiaries (other than a Securitization Subsidiary) to secure Indebtedness under the Indenture prior to engaging in any Securitization Financing shall not be deemed a Qualified Securitization Financing.

“ Record Date ,” with respect to the payment of interest on any Interest Payment Date, shall have the meaning specified in Section 2.03.

“ Regulation S Global Note ” shall have the meaning specified in Section 2.05(a).

“ Restricted Global Note ” means a Global Note that is a Restricted Note.

“ Restricted Note ” has the same meaning as “restricted security” set forth in Rule 144(a)(3) promulgated under the Securities Act; provided that the Trustee shall be entitled to request and conclusively rely upon an Opinion of Counsel with respect to whether any Note is a Restricted Note.

“ Restricted Period ” shall have the meaning specified in Section 2.05(e).

“ Restrictive Agreement ” means contractual obligations with the Company or a Guarantor (including those arising under the terms of any of the Management Agreements) including (i) undertakings not to pledge assets to third parties, (ii) pursuant to which Guarantors grant to the Company or another Guarantor a Lien on various assets of such Guarantor, (iii) pursuant to which Equity Holders grant to the Company or such other Guarantor the right, upon the occurrence of certain circumstances, to acquire Capital Stock of such Guarantor from the applicable Equity Holders, (iv) pursuant to which Equity Holders are restricted from transferring Capital Stock of a Practice held by them, and/or (v) pursuant to which Equity Holders grant to the Company or such other Guarantor a Lien on the Capital Stock of the applicable Guarantors owned by such Equity Holders.

“ Rule 144A Global Note ” shall have the meaning specified in Section 2.05(a).

15

“ Sale and Lease-Back Transaction ” means any arrangement providing for the leasing by the Company or any Guarantor for a period of more than three years of any property, which property has been or is to be sold or transferred by the Company or such Guarantor to a third Person in contemplation of such leasing.

“ SEC ” means the United States Securities and Exchange Commission.

“ Securities Act ” means the Securities Act of 1933, as amended, and the rules and regulations of the SEC promulgated thereunder.

“ Securitization Assets ” means (a) the accounts receivable, notes receivable, other receivables (including, without limitation, unbilled receivables and unbilled services) or payment rights under contracts (including without limitation rights to royalty, milestone or completion payments), rights to future lease payments or residuals, or other rights to payment similar or related thereto (in all cases, whether existing or arising in the future) (“ Receivables ”) subject to a Qualified Securitization Financing and the proceeds thereof and (b) contract rights, lockbox accounts and records with respect to such Receivables and any other assets customarily transferred together with assets in the nature of Receivables in a securitization financing.

“ Securitization Financing ” means any transaction or series of transactions (including factoring arrangements) that may be entered into by the Company or any of its Subsidiaries pursuant to which the Company or any of its Subsidiaries may sell, convey or otherwise transfer to (a) a Securitization Subsidiary (in the case of a transfer by the Company or any of its Subsidiaries) or (b) any other Person (in the case of a transfer by a Securitization Subsidiary), or may grant a security interest in, any Securitization Assets of the Company or any of its Subsidiaries, and any assets related thereto, including all collateral securing such Securitization Assets, all contracts and all guarantees or other obligations in respect of such Securitization Assets, proceeds of such Securitization Assets and other assets that are customarily transferred or in respect of which security interests are customarily granted in connection with asset securitization transactions involving Securitization Assets.

“ Securitization Repurchase Obligation” means any obligation of a seller of Securitization Assets in a Qualified Securitization Financing to repurchase Securitization Assets arising as a result of a breach of a representation, warranty or covenant or otherwise, including, without limitation, as a result of a receivable or portion thereof becoming subject to any asserted defense, dispute, offset or counterclaim of any kind as a result of any action taken by, any failure to take action by or any other event relating to the seller.

“ Securitization Subsidiary ” means a wholly owned Subsidiary of the Company (or another Person formed for the purposes of engaging in a Qualified Securitization Financing in which the Company or any Subsidiary of the Company makes an investment and to which the Company or any Subsidiary of the Company transfers Securitization Assets and related assets) that engages in no activities other than in connection with the financing of Securitization Assets of the Company or its Subsidiaries, all proceeds thereof and all rights (contingent and other), collateral and other assets relating thereto, and any business or activities incidental or related to such business, and which is designated by the board of directors of the Company or such other Person (as provided below) as a Securitization Subsidiary and (a) no portion of the Indebtedness or any other obligations (contingent or otherwise) of which (i) is guaranteed by the Company or any Subsidiary of the Company, other than another Securitization Subsidiary (excluding guarantees of obligations (other than the principal of, and interest on, Indebtedness) pursuant to Standard Securitization Undertakings or Limited Originator Recourse), (ii) is recourse to or obligates the Company or any Subsidiary of the Company, other than another Securitization Subsidiary, in any way other than pursuant to Standard Securitization

16

Undertakings or Limited Originator Recourse or (iii) subjects any property or asset of the Company or any Subsidiary of the Company, other than another Securitization Subsidiary, directly or indirectly, contingently or otherwise, to the satisfaction thereof, other than pursuant to Standard Securitization Undertakings or Limited Originator Recourse, (b) with which none of the Company or any other Subsidiary of the Company, other than another Securitization Subsidiary, has any material contract, agreement, arrangement or understanding other than on terms which the Company reasonably believes to be no less favorable to the Company or such Subsidiary than those that might be obtained at the time from Persons that are not Affiliates of the Company and (c) to which none of the Company or any other Subsidiary of the Company, other than another Securitization Subsidiary, has any obligation to maintain or preserve such entity’s financial condition or cause such entity to achieve certain levels of operating results. Any such designation by the board of directors of the Company or such other Person shall be evidenced to the trustee by delivery to the trustee of a certified copy of the resolution of the board of directors of the Company or such other Person giving effect to such designation and a certificate executed by a responsible financial or accounting officer of the Company certifying that such designation complied with the foregoing conditions.

“ Significant Subsidiary ” means any Subsidiary that would be a “significant subsidiary” as defined in Article 1, Rule 1-02 of Regulation S-X, promulgated by the SEC, as such Regulation is in effect on the date hereof.

“ Standard Securitization Undertakings ” means representations, warranties, covenants, indemnities and other obligations entered into by the Company or any Subsidiary of the Company that are reasonably customary in a Securitization Financing, and in any event includes any Securitization Repurchase Obligation.

“ Subsidiary ” shall mean, as to any Person, a corporation, partnership, limited liability company or other entity of which shares of stock or other ownership interests having ordinary voting power (other than stock or such other ownership interests having such power only by reason of the happening of a contingency) to elect a majority of the board of directors or other managers of such corporation, limited liability company, partnership or other entity are at the time owned, or the management of which is otherwise controlled, directly or indirectly through one or more intermediaries, or both, by such Person; provided , that notwithstanding the foregoing, each Practice and each of its Subsidiaries shall constitute a Subsidiary of the Company for the purposes of this Supplemental Indenture.

“ Total Assets ” means the total assets of the Company and its Subsidiaries on a consolidated basis, as shown on the most recent balance sheet of the Company delivered pursuant to Section 4.03(b)(i) hereof or, for the period prior to the time any such statements are so delivered, the financial statements delivered prior to the Issue Date.

“ Transaction Expenses” means the fees, costs and expenses incurred or payable by the Company or any of its Subsidiaries or any direct or indirect parent thereof in connection with the Transactions, including any such fees, costs and expenses paid in cash, termination payments or other fees, costs and expenses related to terminating Hedging Obligations in effect prior to the Issue Date, and payments to officers and directors as special or retention bonuses and charges for repurchases of, or modifications to, stock options.

“ Transactions ” means, collectively, (a) the completion of the refinancing transaction for the repayment of a portion of the outstanding borrowings under the Company’s Credit Agreement as described in the Offering Memorandum, (b) the issuance of the Notes and the entry into the Indenture, (c) the consummation of any other transactions in connection with the foregoing and (d) the payment of the fees and expenses incurred in connection with any of the foregoing.

17

“ Treasury Rate ” means, at any date of determination, the yield to maturity as of such date (as compiled by and published in the most recent Federal Reserve Statistical Release H.15(519), which has become publicly available at least two business days prior to the date of the redemption notice for which such computation is being made (or if such Statistical Release is no longer published, as reported in any publicly available source of similar market data)), of United States Treasury securities with a constant maturity most nearly equal to the period from the relevant redemption date to December 1, 2018; provided that, if such period is not equal to the constant maturity of the United States Treasury security for which a weekly average yield is given, the Treasury Rate shall be obtained by linear interpolation (calculated to the nearest one-twelfth of a year) from the weekly average yields of United States Treasury securities for which such yields are given, except that if such period is less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year shall be used.

“ U.S. Person ” means a “U.S. person” as defined in Rule 902(k) under the Securities Act.

“ Unrestricted Global Note ” means a Global Note that is not a Restricted Note.

“ Unrestricted Notes ” means Notes that are not Restricted Notes.

“ Voting Stock ” of any Person as of any date means the Capital Stock of such Person that is at the time entitled to vote in the election of the Board of Directors of such Person.

ARTICLE II

ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES

Section 2.01. Designation and Amount . The Notes shall be designated as the “5.25% Senior Notes due 2023.” The Trustee shall initially authenticate the aggregate principal amount of the Notes for original issue on the Issue Date upon a written order of the Company (an “ Authentication Order ”). The aggregate principal amount of Notes that may be authenticated and delivered under this Supplemental Indenture is initially limited to $750,000,000, subject to Section 2.07 and except for Notes authenticated and delivered upon registration or transfer of, or in exchange for, or in lieu of other Notes pursuant to Section 2.06 and Section 9.02 hereof and Section 306 of the Base Indenture.

Section 2.02. Form of Notes . The Notes and the Trustee’s certificate of authentication to be borne by such Notes shall be substantially in the form set forth in Exhibit A hereto.

Any of the Notes may have such letters, numbers or other marks of identification and such notations, legends or endorsements as the officers executing the same may approve (execution thereof to be conclusive evidence of such approval) and as are not inconsistent with the provisions of this Supplemental Indenture, or as may be required by the Depositary, as may be required to comply with any law or with any rule or regulation made pursuant thereto or with any rule or regulation of any securities exchange or automated quotation system on which the Notes may be listed or designated for issuance, or to conform to usage or to indicate any special limitations or restrictions to which any particular Notes are subject.

A Global Note shall represent such principal amount of the Outstanding Notes as shall be specified therein and shall provide that it shall represent the aggregate principal amount of Outstanding Notes from time to time endorsed thereon and that the aggregate principal amount of Outstanding Notes represented thereby may from time to time be increased or reduced to reflect repurchases, conversions, transfers or exchanges permitted hereby. Any endorsement of a Global Note to reflect the amount of any

18

increase or decrease in the amount of Outstanding Notes represented thereby shall be made by the Trustee or the Custodian, at the direction of the Trustee, in such manner and upon instructions given by the Holder of such Notes in accordance with this Supplemental Indenture. Payment of principal and accrued and unpaid interest on a Global Note shall be made to the Holder of such Note on the date of payment, unless a Record Date or other means of determining Holders eligible to receive payment is provided for herein.

The terms and provisions contained in the form of Note attached as Exhibit A hereto are incorporated herein and shall constitute, and are hereby expressly made, a part of this Supplemental Indenture and to the extent applicable, the Company and the Trustee, by their execution and delivery of this Supplemental Indenture, expressly agree to such terms and provisions and to be bound thereby.

Section 2.03. Date and Denomination of Notes; Payments of Interest . The Notes shall be issuable in registered form without coupons in denominations of $2,000 principal amount and integral multiples of $1,000 in excess thereof. Each Note shall be dated the date of its authentication and shall bear interest from the date specified on the face of the form of Note attached as Exhibit A hereto. Interest on the Notes shall be computed on the basis of a 360-day year comprised of twelve 30-day months.

The Person in whose name any Note (or its Predecessor Security) is registered on the Security Register at the Close of Business on any Record Date with respect to any Interest Payment Date shall be entitled to receive the accrued and unpaid interest payable on such Interest Payment Date, subject to Section 4.01(b) hereof. Interest shall be payable at the office of the Company maintained by the Company for such purposes in the Borough of Manhattan, City of New York, which shall initially be an office or agency of the Trustee. The Company shall pay interest (i) on any Notes in certificated form by check mailed to the address of the Person entitled thereto as it appears in the Security Register (or upon written application by such Person to the Security Registrar not later than the fifth Business Day prior to the relevant Interest Payment Date, by wire transfer in immediately available funds to such Person’s account within the United States, if such Person is entitled to interest on an aggregate principal amount of Notes in excess of $2,000,000); provided that, at maturity, interest shall be payable on any Notes in certificated form at the office of the Company maintained by the Company for such purposes in the Borough of Manhattan, City of New York, which shall initially be an office or agency of the Trustee, or (ii) on any Global Note by wire transfer of immediately available funds to the account of the Depositary or its nominee. The term “ Record Date ” with respect to any Interest Payment Date shall mean the May 15 or November 15 preceding the applicable June 1 or December 1 Interest Payment Date, respectively.

Section 2.04. Paying Agent and Depositary . The Company initially appoints the Trustee as Paying Agent in connection with the Notes and the Indenture, and the Trustee hereby accepts such appointment. The Company initially appoints DTC to act as Depositary with respect to the Global Notes.

Section 2.05. Book-Entry Provisions for Global Notes .

(a) Rule 144A Notes initially shall be represented by one or more Notes in registered, global form without interest coupons (collectively, the “ Rule 144A Global Note ”). Regulation S Notes initially shall be represented by one or more Notes in registered, global form without interest coupons (collectively, the “ Regulation S Global Note ”). The term “ Global Notes ” means the Rule 144A Global Note and the Regulation S Global Note. The Global Notes shall bear the Global Note Legend. The Global Notes initially shall (i) be registered in the name of the nominee of such Depositary, in each case for credit to an account of an Agent Member, (ii) be delivered to the Depositary and (iii) bear the Private Placement Legend.

Members of, or direct or indirect participants in, the Depositary (“ Agent Members ”) shall have no rights under the Indenture with respect to any Global Note held on their behalf by the

19

Depositary or under the Global Notes. The Depositary may be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner of the Global Notes for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Company, the Trustee or any agent of the Company or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the Depositary or impair, as between the Depositary and its Agent Members, the operation of customary practices governing the exercise of the rights of a Holder of any Note.

(b) Transfers of Global Notes shall be limited to transfer in whole, but not in part, to the Depositary, its successors or their respective nominees. Interests of Beneficial Owners in the Global Notes may be transferred or exchanged for Physical Notes only in accordance with the applicable rules and procedures of the Depositary and the provisions of Section 2.06. In addition, a Global Note shall be exchangeable for Physical Notes (i) if requested by a holder of such interests upon receipt by the Trustee of written instructions from the Depositary or its nominee on behalf of any Beneficial Owner and in accordance with the rules and procedures of the Depositary and provisions of this Section 2.05, (ii) if the Depositary notifies the Company that it (x) is unwilling or unable to continue as depository for such Global Note or (y) has ceased to be a clearing agency registered under the Exchange Act, and the Company thereupon fails to appoint a successor depository within 120 days, (iii) if there shall have occurred and be continuing a Default or Event of Default with respect to such Global Note or (iv) if the Company determines that all Global Notes should be exchanged for Physical Notes and so notifies the Trustee and the Depositary in writing; provided that in no event shall a Regulation S Global Note be exchanged for a Physical Note prior to the expiration of the Restricted Period and the receipt of any certificates required by Regulation S under the Securities Act. In all cases, Physical Notes delivered in exchange for any Global Note or beneficial interests therein shall be registered in the names, and issued in any approved denominations, requested by or on behalf of the Depositary in accordance with its customary procedures.

(c) In connection with the transfer of a Global Note as an entirety to Beneficial Owners pursuant to subsection (b) of this Section 2.05, such Global Note shall be deemed to be surrendered to the Trustee for cancellation, and the Company shall execute and, upon receipt of an Authentication Order in accordance with Section 2.01, the Trustee shall authenticate and deliver, to each Beneficial Owner identified by the Depositary in writing in exchange for its beneficial interest in such Global Note, an equal aggregate principal amount of Physical Notes of authorized denominations.

(d) Any Restricted Physical Note delivered in exchange for an interest in a Global Note pursuant to Section 2.06 shall, except as otherwise provided in Section 2.06, bear the Private Placement Legend.

(e) Notwithstanding the foregoing, through and including the 40th day after the later of the commencement of the offering of the Notes represented by a Regulation S Global Note and the issue date of such Notes (such period through and including such 40th day, the “ Restricted Period ”), such Regulation S Global Note shall bear a legend in the form set forth on Exhibit E and a beneficial interest in such Regulation S Global Note may be held only through Euroclear or Clearstream (as indirect participants in DTC) unless delivery is made in accordance with the applicable provisions of Section 2.06.

(f) The Holder of any Global Note may grant proxies and otherwise authorize any Person, including Agent Members and Persons that may hold interests through Agent Members, to take any action which a Holder is entitled to take under the Indenture or the Notes.

20

Section 2.06. Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary .

(a) Transfer and Exchange of Global Notes . A Global Note may not be transferred as a whole except as set forth in Section 2.05(b). Global Notes will not be exchanged by the Company for Physical Notes except under the circumstances described in Section 2.06(c). Beneficial interests in a Global Note may be transferred and exchanged as provided in Section 2.06(b).

(b) Transfer and Exchange of Beneficial Interests in Global Notes . The transfer and exchange of beneficial interests in the Global Notes shall be effected through the Depositary, in accordance with the provisions of this Supplemental Indenture and the applicable rules and procedures of the Depositary. Beneficial interests in Restricted Global Notes shall be subject to restrictions on transfer comparable to those set forth herein to the extent required by the Securities Act. Beneficial interests in Global Notes shall be transferred or exchanged only for beneficial interests in Global Notes. Transfers and exchanges of beneficial interests in the Global Notes also shall require compliance with either subparagraph (i) or (ii) below, as applicable, as well as one or more of the other following subparagraphs, as applicable:

(i) Transfer of Beneficial Interests in the Same Global Note . Beneficial interests in any Restricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in the same Restricted Global Note in accordance with the transfer restrictions set forth in the Private Placement Legend; provided , however , that prior to the expiration of the Restricted Period, transfers of beneficial interests in a Regulation S Global Note may not be made to a U.S. Person or for the account or benefit of a U.S. Person (other than an Initial Purchaser). A beneficial interest in an Unrestricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note. No written orders or instructions shall be required to be delivered to the Depositary to effect the transfers described in this Section 2.06(b)(i).

(ii) All Other Transfers and Exchanges of Beneficial Interests in Global Notes . In connection with all transfers and exchanges of beneficial interests in any Global Note that are not subject to Section 2.06(b)(i), the transferor of such beneficial interest must deliver to the Depositary (1) a written order from an Agent Member given to the Depositary in accordance with the applicable rules and procedures of the Depositary directing the Depositary to credit or cause to be credited a beneficial interest in another Global Note in an amount equal to the beneficial interest to be transferred or exchanged and (2) instructions given in accordance with the applicable rules and procedures of the Depositary containing information regarding the Agent Member account to be credited with such increase. Upon satisfaction of all of the requirements for transfer or exchange of beneficial interests in Global Notes contained in the Indenture, the Trustee shall adjust the principal amount of the relevant Global Note(s) pursuant to Section 2.06(f).

(iii) Transfer of Beneficial Interests to Another Restricted Global Note . A beneficial interest in a Restricted Global Note may be transferred to a Person who takes delivery thereof in the form of a beneficial interest in another Restricted Global Note if the transfer complies with the requirements of Section 2.06(b)(ii) above and the Depositary receives the following:

(1) if the transferee will take delivery in the form of a beneficial interest in a Rule 144A Global Note, then the transferor must deliver a certificate in the form of Exhibit F , including the certifications in item (1) thereof; and

21

(2) if the transferee will take delivery in the form of a beneficial interest in a Regulation S Global Note, then the transferor must deliver a certificate in the form of Exhibit F , including the certifications in item (2) thereof.

(iv) Transfer and Exchange of Beneficial Interests in a Restricted Global Note for Beneficial Interests in an Unrestricted Global Note . A beneficial interest in a Restricted Global Note may be exchanged by any holder thereof for a beneficial interest in an Unrestricted Global Note or transferred to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note if the exchange or transfer complies with the requirements of Section 2.06(b)(ii) above and the Depositary receives the following:

(1) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit G , including the certifications in item (1)(a) thereof; or

(2) if the holder of such beneficial interest in a Restricted Global Note proposes to transfer such beneficial interest to a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit F , including the certifications in item (4) thereof,

and, in each such case, if the Depositary or the Company so requests or if the applicable rules and procedures of the Depositary so require, an Opinion of Counsel in form reasonably acceptable to the Depositary and the Company to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act. If any such transfer or exchange is effected pursuant to this subparagraph (iv) at a time when an Unrestricted Global Note has not yet been issued, the Company shall issue and, upon receipt of an Authentication Order in accordance with Section 2.01, the Trustee shall authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of beneficial interests transferred or exchanged pursuant to this subparagraph (iv).

(v) Transfer and Exchange of Beneficial Interests in an Unrestricted Global Note for Beneficial Interests in a Restricted Global Note . Beneficial interests in an Unrestricted Global Note cannot be exchanged for, or transferred to Persons who take delivery thereof in the form of, a beneficial interest in a Restricted Global Note.

(c) Transfer and Exchange of Beneficial Interests in Global Notes for Physical Notes . A beneficial interest in a Global Note may not be exchanged for a Physical Note except under the circumstances described in Section 2.05(b). A beneficial interest in a Global Note may not be transferred to a Person who takes delivery thereof in the form of a Physical Note except under the circumstances described in Section 2.06(b).

(d) Transfer and Exchange of Physical Notes for Beneficial Interests in Global Notes . Physical Notes shall be transferred or exchanged only for beneficial interests in Global Notes as described below:

(i) Restricted Physical Notes to Beneficial Interests in Restricted Global Notes . If any Holder of a Restricted Physical Note proposes to exchange such Restricted Physical Note for a beneficial interest in a Restricted Global Note or to transfer such Restricted Physical Note to a Person who takes delivery thereof in the form of a beneficial interest in a Restricted Global Note, then, upon receipt by the Depositary of the following documentation:

(1) if the Holder of such Restricted Physical Note proposes to exchange such Restricted Physical Note for a beneficial interest in a Restricted Global Note, a certificate from such Holder in the form of Exhibit G , including the certifications in item (2)(a) thereof;

22

(2) if such Restricted Physical Note is being transferred to a Qualified Institutional Buyer in accordance with Rule 144A under the Securities Act, a certificate to the effect set forth in Exhibit F , including the certifications in item (1) thereof;

(3) if such Restricted Physical Note is being transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904 under the Securities Act, a certificate to the effect set forth in Exhibit F , including the certifications in item (2) thereof;

(4) if such Restricted Physical Note is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144 under the Securities Act, a certificate to the effect set forth in Exhibit F , including the certifications in item (3)(a) thereof;

(5) if such Restricted Physical Note is being transferred to an Institutional Accredited Investor in reliance on an exemption from the registration requirements of the Securities Act other than those listed in subparagraphs (2) through (4) above, a certificate to the effect set forth in Exhibit F , including the certifications, certificates and opinion of counsel required by item (3)(d) thereof, if applicable; or

(6) if such Restricted Physical Note is being transferred to the Company or a Subsidiary thereof, a certificate to the effect set forth in Exhibit F , including the certifications in item (3)(b) thereof, and

in each such case, the Trustee shall cancel the Restricted Physical Note, and upon receipt of proper instructions initiated by such Holder through DTC, increase or cause to be increased the aggregate principal amount of the appropriate Restricted Global Note.

(ii) Restricted Physical Notes to Beneficial Interests in Unrestricted Global Notes . A Holder of a Restricted Physical Note may exchange such Restricted Physical Note for a beneficial interest in an Unrestricted Global Note or transfer such Restricted Physical Note to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note only if the Depositary receives the following:

(1) if the Holder of such Restricted Physical Note proposes to exchange such Restricted Physical Note for a beneficial interest in an Unrestricted Global Note, a certificate from such Holder in the form of Exhibit G , including the certifications in item (1)(b) thereof; or

(2) if the Holder of such Restricted Physical Notes proposes to transfer such Restricted Physical Note to a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note, a certificate from such Holder in the form of Exhibit F , including the certifications in item (4) thereof, and

23

in each such case, if the Depositary or the Company so requests or if the applicable rules and procedures of the Depositary so require, an Opinion of Counsel in form reasonably acceptable to the Depositary and the Company to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act. Upon satisfaction of the conditions of this subparagraph (ii), the Trustee shall cancel the Restricted Physical Notes and upon receipt of proper instructions initiated by such Holder through DTC, increase or cause to be increased the aggregate principal amount of the Unrestricted Global Note. If any such transfer or exchange is effected pursuant to this subparagraph (ii) at a time when an Unrestricted Global Note has not yet been issued, the Company shall issue and, upon receipt of an Authentication Order in accordance with Section 2.01, the Trustee shall authenticate, one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of Restricted Physical Notes transferred or exchanged pursuant to this subparagraph (ii).

(iii) Unrestricted Physical Notes to Beneficial Interests in Unrestricted Global Notes . A Holder of an Unrestricted Physical Note may exchange such Unrestricted Physical Note for a beneficial interest in an Unrestricted Global Note or transfer such Unrestricted Physical Note to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note at any time. Upon receipt of a request for such an exchange or transfer, the Trustee shall cancel the applicable Unrestricted Physical Note and upon receipt of proper instructions initiated by such Holder through DTC, increase or cause to be increased the aggregate principal amount of one of the Unrestricted Global Notes. If any such transfer or exchange is effected pursuant to this subparagraph (iii) at a time when an Unrestricted Global Note has not yet been issued, the Company shall issue and, upon receipt of an Authentication Order in accordance with Section 2.01, the Trustee shall authenticate, one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of Unrestricted Physical Notes transferred or exchanged pursuant to this subparagraph (iii).

(iv) Unrestricted Physical Notes to Beneficial Interests in Restricted Global Notes . An Unrestricted Physical Note cannot be exchanged for, or transferred to a Person who takes delivery thereof in the form of, a beneficial interest in a Restricted Global Note.

(e) Transfer and Exchange of Physical Notes for Physical Notes . Upon request by a Holder of Physical Notes and such Holder’s compliance with the provisions of this Section 2.06(e), the Depositary shall register the transfer or exchange of Physical Notes. Prior to such registration of transfer or exchange, the requesting Holder shall present or surrender to the Depositary the Physical Notes duly endorsed or accompanied by a written instruction of transfer in form satisfactory to the Depositary duly executed by such Holder or by its attorney, duly authorized in writing. In addition, the requesting Holder shall provide any additional certifications, documents and information, as applicable, required pursuant to the following provisions of this Section 2.06(e).

(i) Restricted Physical Notes to Restricted Physical Notes . A Restricted Physical Note may be transferred to and registered in the name of a Person who takes delivery thereof in the form of a Restricted Physical Note if the Depositary receives the following:

(1) if the transfer will be made pursuant to Rule 144A under the Securities Act, then the transferor must deliver a certificate in the form of Exhibit F , including the certifications in item (1) thereof;

24

(2) if the transfer will be made pursuant to Rule 903 or Rule 904 under the Securities Act, then the transferor must deliver a certificate in the form of Exhibit F , including the certifications in item (2) thereof;

(3) if the transfer will be made pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144 under the Securities Act, a certificate to the effect set forth in Exhibit F , including the certifications in item (3)(a) thereof;

(4) if the transfer will be made to an Institutional Accredited Investor in reliance on an exemption from the registration requirements of the Securities Act other than those listed in subparagraphs (1) through (3) above, a certificate to the effect set forth in Exhibit F , including the certifications, certificates and opinion of counsel required by item (3)(d) thereof, if applicable; and

(5) if such transfer will be made to the Company or a Subsidiary thereof, a certificate to the effect set forth in Exhibit F , including the certifications in item (3)(b) thereof.

(ii) Restricted Physical Notes to Unrestricted Physical Notes . Any Restricted Physical Note may be exchanged by the Holder thereof for an Unrestricted Physical Note or transferred to a Person who takes delivery thereof in the form of an Unrestricted Physical Note if the Depositary receives the following:

(1) if the Holder of such Restricted Physical Note proposes to exchange such Restricted Physical Note for an Unrestricted Physical Note, a certificate from such Holder in the form of Exhibit G , including the certifications in item (1)(c) thereof; or

(2) if the Holder of such Restricted Physical Note proposes to transfer such Notes to a Person who shall take delivery thereof in the form of an Unrestricted Physical Note, a certificate from such Holder in the form of Exhibit F , including the certifications in item (4) thereof,

and, in each such case, if the Depositary or the Company so requests, an Opinion of Counsel in form reasonably acceptable to the Depositary and the Company to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

(iii) Unrestricted Physical Notes to Unrestricted Physical Notes . A Holder of an Unrestricted Physical Note may transfer such Unrestricted Physical Notes to a Person who takes delivery thereof in the form of an Unrestricted Physical Note at any time. Upon receipt of a request to register such a transfer, the Depositary shall register the Unrestricted Physical Notes pursuant to the instructions from the Holder thereof.

(iv) Unrestricted Physical Notes to Restricted Physical Notes . An Unrestricted Physical Note cannot be exchanged for, or transferred to a Person who takes delivery thereof in the form of, a Restricted Physical Note.

(f) Cancellation and/or Adjustment of Global Notes . At such time as all beneficial interests in a particular Global Note have been exchanged for Physical Notes or a particular Global Note

25

has been redeemed, repurchased or canceled in whole and not in part, each such Global Note shall be returned to or retained and canceled by the Trustee in accordance with Section 309 of the Base Indenture. At any time prior to such cancellation, if any beneficial interest in a Global Note is exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note or for Physical Notes, the principal amount of Notes represented by such Global Note shall be reduced accordingly and an endorsement shall be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such reduction; and if the beneficial interest is being exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note, such other Global Note shall be increased accordingly and an endorsement shall be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such increase.

(g) Private Placement Legend . Upon the registration of transfer, exchange or replacement of Notes not bearing the Private Placement Legend, the Depositary shall deliver Notes that do not bear the Private Placement Legend. Upon the registration of transfer, exchange or replacement of Notes bearing the Private Placement Legend, the Depositary shall deliver only Notes that bear the Private Placement Legend unless (i) there is delivered to the Depositary an Opinion of Counsel reasonably satisfactory to the Company and the Trustee to the effect that neither such legend nor the related restrictions on transfer are required in order to maintain compliance with the provisions of the Securities Act or (ii) such Note has been sold pursuant to an effective registration statement under the Securities Act and the Depositary has received an Officer’s Certificate from the Company to such effect.

(h) General .

(i) All Global Notes and Physical Notes issued upon any registration of transfer or exchange of Global Notes or Physical Notes shall be the valid obligations of the Company, evidencing the same debt, and entitled to the same benefits under the Indenture, as the Global Notes or Physical Notes surrendered upon such registration of transfer or exchange.

(ii) Notwithstanding anything to the contrary contained herein, neither the Trustee nor the Depositary shall be responsible for ascertaining whether any transfer complies with the registration provisions of or exemptions from the Securities Act or other applicable law.

(iii) The Depositary shall retain for a period of two years following receipt copies of all letters, notices and other written communications received pursuant to Section 2.05 or this Section 2.06. The Company shall have the right to inspect and make copies of all such letters, notices or other written communications at any reasonable time upon the giving of reasonable notice to the Depositary.

Section 2.07. Additional Notes. The Company may, without the consent of the Noteholders and notwithstanding Section 2.01, increase the principal amount of the Notes by issuing additional Notes (“ Additional Notes ”) of the same series as the Initial Notes in the future in an unlimited aggregate principal amount on the same terms and conditions, except for any differences in the issue price and interest accrued prior to the issue date of the Additional Notes and, at the option of the Company, the first payment of interest following the issue date of such Additional Notes; provided that if the Additional Notes constitute a different class of securities than the Notes for federal income tax purposes, then the Additional Notes shall have a different CUSIP number from the Initial Notes; provided further , however, that the Additional Notes may have a different CUSIP number on a temporary basis if necessary to comply with applicable U.S. securities laws. The Notes and any Additional Notes shall rank equally and ratably and shall be treated as a single class for all purposes under the Base Indenture and this Supplemental Indenture including, without limitation, for purposes of any waivers, supplements or amendments to the

26

Indenture requiring the approval of Holders of the Notes and any offers to purchase the Notes. All provisions of the Indenture shall be construed and interpreted to permit the issuance of such Additional Notes and to allow such Additional Notes to become fungible and interchangeable with the Initial Notes issued under the Indenture. No Additional Notes may be issued if an Event of Default has occurred with respect to the Notes and is continuing.

Section 2.08. No Sinking Fund . The provisions of Article Twelve of the Base Indenture shall not be applicable to the Notes. No sinking fund is provided for the Notes.

Section 2.09. Ranking . The Notes constitute a senior general unsecured obligation of the Company, ranking (i) equally in right of payment with all of the existing and future senior unsecured indebtedness of the Company and (ii) senior in right of payment to any existing and future indebtedness of the Company that is expressly made subordinate to the Notes by the terms of such indebtedness.

ARTICLE III

REDEMPTION

The provisions of Article Eleven of the Base Indenture shall not be applicable to the Notes and the following shall apply to the Notes:

Section 3.01. Election To Redeem; Notices to Trustee . If the Company elects to redeem Notes pursuant to paragraph 5 of the Notes, at least 30 days prior to the Redemption Date (unless a shorter notice shall be agreed to in writing by the Trustee) but not more than 65 days before the Redemption Date, the Company shall notify the Trustee in writing of the Redemption Date, the principal amount of Notes to be redeemed and the redemption price(s) (or the appropriate method for calculation thereof, if not then ascertainable), and deliver to the Trustee an Officer’s Certificate stating that such redemption will comply with the applicable conditions contained in paragraph 5 of the Notes. Except as provided in Section 3.04, notice given to the Trustee pursuant to this Section 3.01 may not be revoked after the time that notice is given to Noteholders pursuant to Section 3.03.

Section 3.02. Selection by Trustee of Notes To Be Redeemed . If less than all of the Notes are to be redeemed at any time, selection of such Notes for redemption will be made by the Trustee in compliance with the requirements of the principal national securities exchange, if any, on which the Notes to be redeemed are listed or, if such Notes are not so listed, on a pro rata basis by lot or by such method as the Trustee deems fair and appropriate; provided that no Note with a principal amount of $2,000 or less shall be redeemed in part. For all purposes of this Supplemental Indenture unless the context otherwise requires, provisions of the Indenture that apply to Notes called for redemption also apply to portions of Notes called for redemption. Redemption amounts shall only be paid upon presentation and surrender of any such Notes to be redeemed to the Trustee at its Corporate Trust Office.

Section 3.03. Notice of Redemption . At least 30 days, and no more than 60 days, before a Redemption Date, the Company shall mail, or cause to be mailed, a notice of redemption by first-class mail to each Holder of Notes to be redeemed at the address of such Holder appearing in the Security Register or otherwise in accordance with the procedures of the Depositary.

The notice shall identify the Notes to be redeemed (including the CUSIP and/or ISIN numbers thereof) and shall state:

(i) the Redemption Date;

27

(ii) the redemption price (or the appropriate method for calculation thereof, if not then ascertainable) and the amount of premium and accrued interest to be paid;

(iii) if any Note is being redeemed in part, the portion of the principal amount of such Note to be redeemed and that, after the Redemption Date and upon surrender of such Note, a new Note or Notes in principal amount equal to the unredeemed portion will be issued to the Holder upon cancellation of the surrendered Note;

(iv) the name and address of the Paying Agent;

(v) that Notes called for redemption must be surrendered to the Paying Agent to collect the redemption price;

(vi) that unless the Company defaults in making the redemption payment, interest on Notes called for redemption ceases to accrue on and after the Redemption Date;

(vii) that paragraph 5 of the Notes is the provision of the Notes pursuant to which the redemption is occurring;

(viii) the aggregate principal amount of Notes that are being redeemed; and

(ix) any condition applicable to such redemption under Section 3.04.

At the Company’s written request made at least 3 Business Days prior to the date on which notice is to be given (or such shorter period acceptable to the Trustee), the Trustee shall give the notice of redemption in the Company’s name and at the Company’s sole expense.

The Company will calculate any Applicable Redemption Premium, and the Trustee shall have no duty to confirm or verify such calculation.

Section 3.04. Effect of Notice of Redemption . Once the notice of redemption described in Section 3.03 is mailed and subject to the proviso to this sentence, Notes called for redemption shall become due and payable on the Redemption Date and at the redemption price, including any premium, plus interest accrued to (but not including) the Redemption Date; provided , however , that any redemption and notice thereof pursuant to this Supplemental Indenture may, at the Company’s discretion, be subject to one or more conditions precedent, including, but not limited to, completion of a public or private offering for cash by the Company or other corporate transaction. Failure to give such notice or any defect in such notice to any Holder shall not affect the validity of the proceedings for the redemption of any other Note. If mailed in the manner herein provided, such notice shall be conclusively presumed to have been given, whether or not a Holder receives such notice.

Upon surrender to the Paying Agent, such Notes shall be paid at the redemption price, including any premium, plus interest accrued to the Redemption Date; provided that if the Redemption Date is after a regular Record Date and on or prior to the Interest Payment Date, the accrued interest shall be payable to the Holder of the redeemed Notes registered on the relevant Record Date.

Section 3.05. Deposit of Redemption Price . On or prior to 11:00 A.M., New York City time (or such later time of day to which the Trustee may reasonably agree), on each Redemption Date, the Company shall deposit with the Paying Agent U.S. Dollars sufficient to pay the redemption price of, including any premium, and accrued interest on any and all Notes to be redeemed on that date (other than Notes or portions thereof called for redemption on that date which have been delivered by the Company to the Trustee for cancellation). The Paying Agent shall promptly return to the Company any money deposited with the Paying Agent in excess of the amount necessary to pay such redemption price.

28

On and after any Redemption Date, if money sufficient to pay the redemption price of, including any premium, and accrued interest on all Notes called for redemption shall have been made available in accordance with the immediately preceding paragraph, the Notes called for redemption will cease to accrue interest and the only right of the Holders of such Notes will be to receive payment of the redemption price of and, subject to the proviso in the second paragraph of Section 3.04, accrued and unpaid interest on such Notes to (but not including) the Redemption Date. If any Note surrendered for redemption shall not be so paid, interest will be paid, from the Redemption Date until such redemption payment is made, on the unpaid principal of the Note and any interest not paid on such unpaid principal, in each case at the rate and in the manner provided in the Notes.

Section 3.06. Notes Redeemed in Part . Upon surrender of a Note that is redeemed in part, the Company shall execute and, upon receipt of an Authentication Order in accordance with Section 2.01, the Trustee shall authenticate for the Holder thereof a new Note equal in principal amount to the unredeemed portion of the Note surrendered; provided , that the principal amount of each new Note shall be at least $2,000 or an integral multiple of $1,000 in excess thereof.

Section 3.07. Mandatory Redemption . Except as provided in Section 9.02, the Company is not required to make any mandatory redemption of the Notes or any sinking fund payments with respect to the Notes.

ARTICLE IV

PARTICULAR COVENANTS OF THE COMPANY

Section 4.01. Payment of Principal and Interest .

(a) Except as otherwise provided in Section 2.03, Section 307, Section 1001 and Section 1003 of the Base Indenture shall apply to the Notes.

(b) Except as otherwise provided in this Section 4.01, a Holder of any Notes at 5:00 p.m., New York City time, on a Record Date shall be entitled to receive interest on such Notes on the corresponding Interest Payment Date.

(c) Notwithstanding anything to the contrary in the Indenture, the Company may pay accrued and unpaid interest to a Person other than the Holder of record on the Record Date immediately prior to the Maturity Date. On the Maturity Date, the Company shall pay accrued and unpaid interest only to the Person to whom the Company pays the principal amount of the Notes.

Section 4.02. Intentionally Omitted .

Section 4.03. Reports by Company .

(a) The provisions of Section 703 and Section 1005 of the Base Indenture shall not be applicable to the Notes.

(b) So long as any Notes are outstanding, whether or not the Company is required to file such information with the SEC, the Company shall furnish to the Trustee (and the Holders and Beneficial Owners of the Notes) to the extent not otherwise available on the SEC’s Electronic Data Gathering,

29

Analysis and Retrieval System (or any successor thereto) as promptly as is reasonably practicable after such information has been filed and no later than 15 days after the Company would be required to file such reports:

(i) quarterly and annual financial information that would be required to be contained in a filing with the SEC on Forms 10-Q and 10-K if the Company were required to file such Forms, including a “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and, with respect to the annual information only, a report on the annual financial statements by the Company’s certified independent accountants; and

(ii) all current reports that would be required to be filed (as opposed to furnished) with the SEC on Form 8-K if the Company were required to file such reports.

(c) At any time that the Company is not required to file or furnish with the SEC the reports and information required to be filed or furnished under clause (b) of this Section 4.03, the Company will also:

(i) hold a quarterly conference call to discuss the information contained in the annual and quarterly reports required to be furnished under clause (b)(i) of this Section 4.03 (the “ Financial Reports ”) not later than 5 Business Days from the time the Company furnishes such information to the Trustee;

(ii) no fewer than 3 Business Days prior to the date of the conference call required to be held in accordance with clause (i) above, issue a press release announcing, or utilize other means that will, in the reasonable judgment of the Company, advise Beneficial Owners of the Notes of the time and date of such conference call and directing the Beneficial Owners of the Notes, prospective investors and securities analysts to contact the investor relations office of the Company to obtain the Financial Reports and information on how to access such conference call; and

(iii) either (x) maintain a non-public website to which Beneficial Owners of the Notes, prospective investors and securities analysts are given access and to which the Financial Reports and conference call access details are posted or (y) distribute via electronic mail the Financial Reports and conference call details to Beneficial Owners of the Notes, prospective investors and securities analysts who request to receive such distributions.

(d) The Company may satisfy its obligations under this Section 4.03 with respect to financial information relating to the Company by furnishing financial information relating to its direct or indirect parent consistent with this Section 4.03. If the direct or indirect parent, if any, has more than de minimis operations separate and apart from its ownership in the Company, then the Company will provide consolidating information, which need not be audited, that explains in reasonable detail the differences between the information relating to such parent and its subsidiaries, on the one hand, and the information relating to the Company and its Subsidiaries on a standalone basis, on the other hand.

(e) In addition, for so long as any Notes remain outstanding, the Company will furnish to Holders or Beneficial Owners of the Notes and any prospective purchaser of such Notes, upon their request, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act if not otherwise provided by the Company as described above.

(f) Delivery of such reports, information and documents to the Trustee is for informational purposes only, and the Trustee’s receipt of such shall not constitute constructive notice of any

30

information contained therein or determinable from information contained therein, including the Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to conclusively rely exclusively on an Officers’ Certificate). Notwithstanding anything to the contrary in this Section 4.03, the Company, to the extent permitted under the Trust Indenture Act, shall not be required to deliver to the Trustee or the Holders any material for which the Company has sought and received confidential treatment by the SEC.

Section 4.04. Additional Subsidiary Guarantors .

(a) If the Company or any of its Subsidiaries acquires or creates another Subsidiary after the Issue Date that provides a guarantee of the Company’s obligations under any Debt Facility (including the Credit Agreement) with an aggregate principal or committed amount of $250 million or more, then, within 10 Business Days after such Subsidiary provides such guarantee, such newly acquired or created Subsidiary shall execute a supplemental indenture pursuant to which it will unconditionally Guarantee, on a joint and several basis, payment of principal of, premium, if any, and interest in respect of the Notes on a senior unsecured basis on the same terms and conditions as those set forth in this Supplemental Indenture, and will deliver an Opinion of Counsel addressed to the Trustee.

(b) After the execution of a supplemental indenture pursuant to this Section 4.04, such Subsidiary party thereto shall be a Guarantor of the Notes for all purposes of the Indenture.

Section 4.05. Intentionally Omitted .

Section 4.06. Limitation on Liens . Except as provided in Section 4.08, the Company shall not, and shall not permit any Guarantor to, incur, issue or assume any Indebtedness for borrowed money secured by any Lien upon any of its Principal Personal & Real Property (whether now owned or hereafter acquired) without making effective provision whereby the Notes shall be secured equally and ratably with (or prior to) the Indebtedness so secured by a Lien on the same property, for so long as such Indebtedness is so secured. The foregoing restrictions will not, however, apply to Indebtedness secured by Permitted Liens.

For purposes of this Section 4.06, if at the time any Indebtedness is incurred, issued or assumed, such Indebtedness is unsecured but is later secured by a Lien, such Indebtedness shall be deemed to be incurred at the time that such Indebtedness is so secured by a Lien.

Section 4.07. Limitation on Sale and Leaseback Transactions . Except as provided in Section 4.08, neither the Company nor any Guarantor shall enter into any Sale and Lease-Back Transaction with respect to any Principal Personal & Real Property with another Person (other than with the Company or a Guarantor) unless:

(a) the Company or such Guarantor could incur Indebtedness secured by a Lien on the property to be leased without equally and ratably securing the Notes; or

(b) the property leased pursuant to such arrangement is sold for a price at least equal to such property’s fair value (as determined by the Company); or

(c) within 365 days after the effective date of any such Sale and Lease-Back Transaction, the Company applies the net proceeds of the sale of the leased property, less the amount of net proceeds used to prepay, redeem or purchase the Notes, to the voluntary prepayment or retirement of Funded Debt of the Company and its Subsidiaries (which may include the Notes) and/or the acquisition, construction or improvement of a property.

31

Section 4.08. Exempted Transactions . Notwithstanding Sections 4.06 and 4.07, if (i) the aggregate outstanding principal amount of all Indebtedness of the Company and the Guarantors that is subject to and not otherwise permitted under Section 4.07 plus (ii) the aggregate Attributable Indebtedness in respect of Sale and Lease-Back Transactions that is subject to and not otherwise permitted under Section 4.07 does not exceed the greater of (i) $2,200 million and (ii) an amount such that the Consolidated Secured Debt Ratio on a pro forma basis after giving effect to such incurrence would not exceed 3.75 to 1.00 (measured solely at the time of the incurrence of the Indebtedness secured by such a Lien or entry into such Sale and Lease-Back Transaction, as applicable, based on the consolidated balance sheet of the Company as of the last day of the then most recent quarter for which financial statements are available), then:

(a) the Company or any Guarantor may incur or Guarantee Indebtedness secured by Liens upon any property, assets or revenues;

(b) the Company or any Guarantor may enter into any Sale and Lease-Back Transaction; and

(c) the Company may Guarantee the obligations of any Guarantor under the preceding two clauses.

Section 4.09. Legal Existence . Except as permitted by Article Seven, the Company shall do or cause to be done all things necessary to preserve and keep in full force and effect (i) its legal existence, and the corporate, partnership or other existence of each Guarantor, in accordance with the respective organizational documents (as the same may be amended from time to time) of the Company and each such Guarantor and (ii) the material rights (charter and statutory) and franchises of the Company and such Guarantors; provided that the Company shall not be required to preserve any such right, franchise, or the corporate, partnership or other existence of any of its Guarantors if the Board of Directors of the Company or of such Guarantor shall determine that the preservation thereof is no longer desirable in the conduct of the business of the Company and its Guarantors, taken as a whole, and that the loss thereof is not adverse in any material respect to the Holders.

Section 4.10. Intentionally Omitted .

Section 4.11. Waiver of Stay, Extension or Usury Laws . The Company and each of the Guarantors covenants (to the extent that it may lawfully do so) that it shall not at any time insist upon, or plead (as a defense or otherwise) or in any manner whatsoever claim or take the benefit or advantage of, any stay or extension law or any usury law or other law which would prohibit or forgive the Company and any of the Guarantors from paying all or any portion of the principal of, premium, if any, or interest on the Notes as contemplated herein, wherever enacted, now or at any time hereafter in force, or which may affect the covenants or the performance of the Indenture; and (to the extent that they may lawfully do so) the Company and each of the Guarantors hereby expressly waives all benefit or advantage of any such law, and covenants that it will not hinder, delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power as though no such law had been enacted.

Section 4.12. Taxes . The Company shall, and shall cause each Guarantor to, pay prior to delinquency (i) all material taxes, assessments, and governmental levies and (ii) all lawful material claims for labor, materials and supplies which, in each case, if unpaid, might by law become a Lien upon the property of the Company or any Guarantor; provided , however , that, neither the Company nor any Guarantor shall be required to pay or discharge or cause to be paid or discharged any such tax, assessment, charge or claim where the failure to pay such tax is not materially adverse to the Holders or whose

32

amount, applicability or validity is being contested in good faith and by appropriate actions diligently conducted, if adequate reserves with respect thereto are maintained on the books of the applicable Person to the extent required in accordance with GAAP.

Section 4.13. Notice of Default . Upon becoming aware of any Default or Event of Default, the Company shall deliver to the Trustee a statement specifying such Default or Event of Default.

ARTICLE V

DEFAULTS AND REMEDIES

Section 5.01. Events of Default . The provisions of Article Five of the Base Indenture shall not be applicable to the Notes and the following shall apply to the Notes:

Each of the following constitutes an “ Event of Default ” with respect to the Notes:

(a) default for 30 days in the payment when due of interest on the Notes;

(b) default in payment when due of the principal of, or premium, if any, on the Notes (including the failure to repurchase Notes validly tendered pursuant to a Change of Control Offer);

(c) failure by the Company or any Guarantor for 90 days after receipt of the notice described below to comply with any of the other agreements in this Supplemental Indenture (other than those specified in clauses (a) and (b) of this Section 5.01);

(d) default under any mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any Indebtedness for money borrowed by the Company or any Guarantor (or the payment of which is Guaranteed by the Company or any Guarantor), other than Indebtedness owed to the Company or any of its Subsidiaries, whether such Indebtedness or Guarantee now exists, or is created after the Issue Date, if that default:

(i) is caused by a failure to pay principal of such Indebtedness at its final stated maturity after giving effect to any grace period provided in such Indebtedness on the date of such default (a “ Payment Default ”); or

(ii) results in the holders of such Indebtedness causing it to become due prior to its express maturity,

without such Indebtedness having been discharged or such acceleration rescinded, waived or annulled within 30 days after the notice described below, and, in each case, the principal amount of any such Indebtedness, together with the principal amount of any other such Indebtedness under which there has been a Payment Default or the maturity of which has been so accelerated, aggregates $100 million or more;

(e) failure by the Company or any Guarantor to pay final, non-appealable judgments for the payment of money as determined by a court of competent jurisdiction aggregating in excess of $100 million that are not covered by insurance, which judgments remain outstanding for a period of 90 days after such judgment has become final and non-appealable and is not discharged, waived or stayed within 30 days after the notice described below;

33

(f) except as permitted by this Supplemental Indenture, any Guarantee of the Notes of a Significant Subsidiary shall be held in any final, non-appealable judicial proceeding to be unenforceable or invalid or shall cease for any reason to be in full force and effect or any Guarantor that is a Significant Subsidiary, or any Person acting on behalf of any such Guarantor, shall deny or disaffirm its obligations under its Guarantee of the Notes; and

(g) (A) the Company or any Significant Subsidiary pursuant to or within the meaning of any Bankruptcy Law (i) commences a voluntary case, (ii) consents to the entry of an order for relief against it in an involuntary case, (iii) consents to the appointment of a Custodian of it or for all or substantially all of its property, or (iv) makes a general assignment for the benefit of its creditors; or (B) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that (i) is for relief against the Company or any Significant Subsidiary in an involuntary case, (ii) appoints a Custodian of the Company or any Significant Subsidiary or for all or substantially all of either of its property, or (iii) orders the liquidation of the Company or any Significant Subsidiary, and such order or decree remains unstayed and in effect for 90 days.

Notwithstanding anything herein to the contrary, a Default under clause (c), (d) or (e) will not become an Event of Default until the Trustee or the Holders of at least 25% in principal amount of the Notes then Outstanding notify the Company of the Default and the Company does not cure such Default within the time specified in such clause after receipt of such notice. Such notice must specify the Default, demand that it be remedied and state that such notice is a “Notice of Default.”

Section 5.02. Acceleration of Maturity . If an Event of Default occurs and is continuing under the Indenture, either the Trustee, by notice in writing to the Company, or the Holders of at least 25% in aggregate principal amount of the Notes then Outstanding may, by notice in writing to the Company and the Trustee, specifying the respective Event of Default and that it is a “Notice of Acceleration,” declare the principal of and premium, if any, and accrued interest, if any, on the Notes to be due and payable, and upon such declaration of acceleration, such principal of and premium, if any, and accrued interest, if any, shall be immediately due and payable; provided , however , that, notwithstanding the foregoing, if an Event of Default specified in Section 5.01(g) occurs with respect to the Company, the principal of and premium, if any, and accrued interest, if any, on the Notes then Outstanding shall become and be immediately due and payable without any declaration or other act on the part of the Trustee or any Holder.

Section 5.03. Other Remedies . If an Event of Default occurs and is continuing, the Trustee may pursue any other available remedy by proceeding at law or in equity to collect the payment of principal of, or premium, if any, and interest on the Notes or to enforce the performance of any provision of the Notes or the Indenture and may take any necessary action requested by the Holders of a majority of the principal amount Outstanding of the Notes to settle, compromise, adjust or otherwise conclude any proceedings to which it is a party.

The Trustee may maintain a proceeding even if it does not possess any of the Notes or does not produce any of them in the proceeding. A delay or omission by the Trustee or any Noteholder in exercising any right or remedy accruing upon an Event of Default shall not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. No remedy is exclusive of any other remedy. All available remedies are cumulative. Any reasonable costs associated with actions taken by the Trustee under this Section 5.03 shall be reimbursed to the Trustee by the Company and the Guarantors.

34

Section 5.04. Waiver of Past Defaults . Section 513 of the Base Indenture shall not be applicable to the Notes, and the following shall apply to the Notes:

(a) Subject to Sections 5.08 and 6.02 hereof and the proviso to the definition of “Outstanding” in the Base Indenture, the Holders of a majority in principal amount of the Notes then Outstanding shall have the right, by notice to the Trustee, to rescind an acceleration or waive past or continuing Defaults and Events of Default, except a continuing Default or Event of Default in the payment of the principal of, or interest or premium, if any, on any Note as specified in clauses (a) and (b) of Section 5.01 (other than any payment Default or Event of Default that resulted from such acceleration) or in respect of a covenant or a provision which cannot be modified or amended without the consent of all Holders as provided for in Section 6.02. The Company shall deliver to the Trustee an Officer’s Certificate stating that the requisite percentage of Holders have consented to such waiver or rescission and attaching copies of such consents.

In the event of any Default or Event of Default specified in Section 5.01(d), such Default or Event of Default will be annulled, waived, and rescinded, automatically and without any action by the Trustee or the Holders, if within 20 days after such Default or Event of Default arose:

(i) the Indebtedness or Guarantee that is the basis for such Default or Event of Default has been discharged;

(ii) the holders thereof have rescinded or waived the acceleration, notice or action (as the case may be) giving rise to such Default or Event of Default; or

(iii) the default that is the basis for such Default or Event of Default has been cured.

The Company shall promptly notify the Trustee of the occurrence of any of (i) through (iii) above, provided that the failure to provide such notification shall not affect such automatic annulment, waiver, and rescission.

In case of any waiver of a Default or Event of Default, the Company, the Trustee and the Holders shall be restored to their former positions and rights hereunder and under the Notes, respectively. This subsection (a) of this Section 5.04 shall be in lieu of TIA §316(a)(1)(B), and TIA §316(a)(1)(B) is hereby expressly excluded from this Supplemental Indenture and the Notes, as permitted by the TIA.

(b) Upon any such waiver, such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured for every purpose of this Supplemental Indenture and the Notes, but no such waiver or rescission shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereto.

Section 5.05. Control by Majority . Subject to Section 601 of the Base Indenture, the Holders of a majority in principal amount of the outstanding Notes have the right to direct the time, method and place of conducting any proceeding for exercising any remedy available to the Trustee or exercising any trust or power conferred on the Trustee by the Indenture. The Trustee, however, may refuse to follow any direction that conflicts with law or the Indenture or that the Trustee determines may be unduly prejudicial to the rights of another Holder not taking part in such direction, and the Trustee shall have the right to decline to follow any such direction if the Trustee, being advised by counsel, determines that the action so directed may not lawfully be taken or if the Trustee in good faith shall, by a Responsible Officer, determine that the proceedings so directed may involve it in personal liability; provided that the Trustee may take any other action deemed proper by the Trustee which is not inconsistent with such direction. The Trustee may withhold from the Holders notice of any continuing Default or Event of Default if it determines that withholding notice is in the Holders’ interest, except a Default or Event of Default in the payment of the principal of, or interest or premium, if any, on any Note as specified in clauses (a) and

35

(b) of Section 5.01 (other than any payment Default or Event of Default that resulted from such acceleration). In the event the Trustee takes any enforcement action or follows any such direction pursuant to the Indenture, the Trustee shall be entitled to indemnification reasonably satisfactory to it against any loss or expense caused by taking such action or following such direction. This Section 5.05 shall be in lieu of TIA §316(a)(1)(A), and TIA §316(a)(1)(A) is hereby expressly excluded from the Indenture and the Notes, as permitted by the TIA.

Section 5.06. Limitation on Suits . Subject to Section 5.08, a Holder may not enforce or pursue any remedy with respect to the Indenture or the Notes unless:

(i) the Holder has given the Trustee written notice of a continuing Event of Default;

(ii) the Holders of at least 25% in principal amount of the Notes then outstanding make a written request to the Trustee to pursue the remedy; provided that, in the case of any Event of Default described in clause (g) of Section 5.01, the Holders of not less than 25% in principal amount of all Outstanding Securities (including the Notes) under the Indenture, shall have made written request to the Trustee to institute proceedings in respect of such Event of Default in its own name as Trustee hereunder;

(iii) such Holder or Holders offer the Trustee indemnity satisfactory to the Trustee against any costs, liability or expense;

(iv) the Trustee does not comply with the request within 60 days after receipt of the request and the offer of indemnity; and

(v) during such 60-day period, the Holders of a majority in aggregate principal amount of the outstanding Notes do not give the Trustee a direction that is inconsistent with the request.

A Noteholder may not use any provision of the Indenture to disturb or prejudice the rights of another Noteholder or to obtain a preference or priority over another Noteholder.

Section 5.07. No Personal Liability of Directors, Officers, Employees and Stockholders . No director, officer, employee, incorporator or stockholder of the Company or any Guarantor, as such, will have any liability for any obligations of the Company or the Guarantors under the Notes, the Indenture, the Guarantees of the Notes, or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws.

Section 5.08. Rights of Holders To Receive Payment . Notwithstanding any other provision of the Indenture, the right of any Holder of a Note to receive payment of the principal of or premium, if any, or interest, if any, on such Note on or after the respective due dates expressed in such Note, or to bring suit for the enforcement of any such payment, on or after such respective due dates, is absolute and unconditional and shall not be impaired or affected without the consent of the Holder.

Section 5.09. Collection Suit by Trustee . If an Event of Default specified in Section 5.01(a) or (b) occurs and is continuing, the Trustee may recover judgment in its own name and as trustee of an express trust against the Company or any Guarantor (or any other obligor on the Notes) for the whole amount of unpaid principal and accrued interest remaining unpaid, together with interest on overdue principal and, to the extent that payment of such interest is lawful, interest on overdue installments of

36

interest, in each case at the rate set forth in the Notes, and such further amounts as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel.

Section 5.10. Trustee May File Proofs of Claim . The Trustee may file such proofs of claim and other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 606 of the Base Indenture) and the Noteholders allowed in any judicial proceedings relative to the Company or any Guarantor (or any other obligor upon the Notes), its creditors or its property and shall be entitled and empowered to collect and receive any monies or other property payable or deliverable on any such claims and to distribute the same after deduction of its charges and expenses to the extent that any such charges and expenses are not paid out of the estate in any such proceedings and any custodian in any such judicial proceeding is hereby authorized by each Noteholder to make such payments to the Trustee, and in the event that the Trustee shall consent to the making of such payments directly to the Noteholders, to pay to the Trustee any amount due to it for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 606 of the Base Indenture.

Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Noteholder any plan or reorganization, arrangement, adjustment or composition affecting the Notes or the rights of any Noteholder thereof, or to authorize the Trustee to vote in respect of the claim of any Noteholder in any such proceedings.

Section 5.11. Priorities . If the Trustee collects any money or property pursuant to this Article Five, it shall pay out the money and property in the following order:

FIRST: to the Trustee for amounts due under Section 606 of the Base Indenture;

SECOND: to Noteholders for amounts due and unpaid on the Notes for principal, premium, if any, and interest, ratably, without preference or priority of any kind, according to the amounts due and payable; and

THIRD: to the Company or, to the extent the Trustee collects any amount from any Guarantor, to such Guarantor, or as a court of competent jurisdiction may direct.

The Trustee may fix a record date and payment date for any payment to Noteholders pursuant to this Section 5.11.

Section 5.12. Undertaking for Costs . In any suit for the enforcement of any right or remedy under the Indenture or in any suit against the Trustee for any action taken or omitted by it as Trustee, a court in its discretion may require the filing by any party litigant in the suit of an undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable costs, including reasonable attorneys’ fees and expenses, against any party litigant in the suit, having due regard to the merits and good faith of the claims or defenses made by the party litigant. This Section 5.12 does not apply to a suit by the Trustee, a suit by a Noteholder pursuant to Section 5.08 or a suit by Holders of more than 10% in aggregate principal amount of the outstanding Notes.

37

ARTICLE VI

AMENDMENT, SUPPLEMENT AND WAIVER

Section 6.01. Without Consent of Noteholders . The provisions of Section 901 of the Base Indenture shall not be applicable to the Notes, and the following shall apply to the Notes:

Except as provided in Section 6.02, the Company, the Guarantors, if applicable, and the Trustee may modify and amend the Indenture, the Notes or the Guarantees of the Notes without the consent of any Holder for any of the following purposes:

(1) to cure any ambiguity, defect or inconsistency;

(2) to provide for uncertificated Notes in addition to or in place of certificated Notes;

(3) to provide for the assumption of the Company’s or a Guarantor’s obligations to the Holders in the case of a merger or consolidation or disposition of all or substantially all of Company’s or a Guarantor’s assets;

(4) to make any change that would provide any additional rights or benefits to the Holders or that does not adversely affect the legal rights under the Indenture of any such Holder;

(5) to close the Indenture with respect to the authentication and delivery of additional series of debt securities or to qualify, or maintain qualification of, the Indenture under the TIA;

(6) to allow any Guarantor to execute a supplemental indenture and/or a Guarantee of the Notes;

(7) to evidence and provide for the acceptance or appointment of a successor Trustee or facilitate the administration of the trusts under the Indenture by more than one Trustee;

(8) to mortgage, pledge, hypothecate or grant a security interest in favor of the Trustee for the benefit of the Holders as additional security for the payment and performance of the Company’s or a Guarantor’s obligations;

(9) to release a Guarantor from its Guarantee of the Notes pursuant to the terms of the Indenture when permitted or required pursuant to the terms of the Indenture;

(10) to conform the text of the Indenture, such Notes or the Guarantees of such Notes to any provision of the “Description of Notes” contained in the Offering Memorandum;

(11) to amend the provisions of the Indenture relating to the transfer and legending of the Notes; provided , however , that (a) compliance with the Indenture as so amended would not result in the Notes being transferred in violation of the Securities Act or any applicable securities law and (b) such amendment does not materially and adversely affect the rights of Holders to transfer Notes;

(12) to add, change or eliminate any provisions of the Indenture, provided that any addition, change or elimination shall (i) neither apply to the Notes entitled to the benefit of such provisions nor modify the rights of the Holders of the Notes with respect to such provision or (ii) become effective only when there are no outstanding Notes; or

(13) to establish the form or terms of debt securities of any series, other than the Notes.

38

Section 6.02. Modification and Amendment with Consent of Noteholders . The provisions of Section 902 of the Base Indenture shall not be applicable to the Notes, and the following shall apply to the Notes:

(a) Except as provided in Section 6.01 and subsection (b) of this Section 6.02, this Supplemental Indenture, the Notes or the Note Guarantees may be amended or supplemented with the consent of the Holders of at least a majority in principal amount of the Notes then outstanding Notes voting as a single class (including, without limitation, consents obtained in connection with a purchase of, tender offer or exchange offer for, the Notes), and any existing Default or Event of Default or compliance with any provision of this Supplemental Indenture, the Notes or the Note Guarantees may be waived with the consent of the Holders of at least a majority in principal amount of the then outstanding Notes voting as a single class (including, without limitation, consents obtained in connection with a purchase of, tender offer or exchange offer for, the Notes).

(b) Notwithstanding subsection (a) of this Section 6.02, without the consent of each Holder of Notes affected, an amendment or waiver may not (with respect to any Note held by a non-consenting Holder):

(i) reduce the principal amount of such Notes whose Holders must consent to an amendment, supplement or waiver;

(ii) reduce the principal of or change the fixed maturity of any Note or alter the provisions with respect to the redemption of such Notes (other than provisions set forth in Section 9.02 and other than notice provisions with respect to any optional redemption by the Company);

(iii) reduce the rate of or change the time for payment of interest on any Note;

(iv) waive a Default or Event of Default in the payment of principal of, or interest or premium on, Notes (except a rescission of acceleration of the Notes by the Holders of at least a majority in aggregate principal amount of such Notes and a waiver of the payment Default or Event of Default in respect of such Notes that resulted from such acceleration);

(v) make any Note payable in money other than that stated in such Notes;

(vi) make any change in the provisions of this Supplemental Indenture relating to waivers of past Defaults or the rights of Holders to receive payments of principal of, or interest or premium on, Notes;

(vii) after the date of an event giving rise to a redemption, waive a redemption payment with respect to any Note (other than a payment required by Section 9.02);

(viii) release any Guarantor that is a Significant Subsidiary or group of Guarantors that, taken together (as of the latest audited consolidated financial statements for the Company), would constitute a Significant Subsidiary, from any of its obligations under its Guarantee of the Notes or this Supplemental Indenture, except in accordance with the terms of the Indenture;

39

(ix) make any change to the provisions of the Indenture relating to the ranking of such Notes that adversely affects the rights of the Holders thereof; or

(x) make any change in the preceding amendment and waiver provisions.

(c) It shall not be necessary for the consent of the Holders under this Section 6.02 to approve the particular form of any proposed amendment, supplement or waiver, but it shall be sufficient if such consent approves the substance thereof.

(d) After an amendment, supplement or waiver under this Section 6.02 becomes effective, the Company shall mail to the Holders affected thereby a notice briefly describing the amendment, supplement or waiver. The Company may elect in its sole discretion to have the Trustee mail such notice prepared by the Company on the Company’s behalf and at the Company’s sole expense. Any failure of the Company to mail such notice, or any defect therein, shall not, however, in any way impair or affect the validity of any such amendment, supplement or waiver.

Section 6.03. Effect of Supplemental Indentures . Upon the execution of any supplemental indenture under this Article, the Base Indenture and this Supplemental Indenture shall be modified in accordance therewith, and such supplemental indenture shall form a part of the Indenture for all purposes; and every Holder of Notes theretofore or thereafter authenticated and delivered hereunder and of any coupon appertaining thereto shall be bound thereby.

Section 6.04. Article Nine of Base Indenture . Except as amended by this Article VI, all of the provisions of Article Nine of the Base Indenture shall be applicable to the Notes.

ARTICLE VII

CONSOLIDATION, MERGER, AND SALE OF ASSETS

Section 7.01. Consolidation, Merger, and Sale of Assets . Article Eight of the Base Indenture is amended in respect of the Notes by adding the following additional provisions:

(a) A Guarantor shall not sell or otherwise dispose of all or substantially all of its assets to, or consolidate with or merge with or into (whether or not such Guarantor is the surviving Person), another Person, other than the Company or another Guarantor, unless:

(i) immediately after giving effect to that transaction, no Default or Event of Default exists;

(ii) subject to Section 11.05 hereof, the Person acquiring the property in any such sale or disposition or the Person formed by or surviving any such consolidation or merger assumes all the obligations of that Guarantor under this Supplemental Indenture and its Guarantee of the Notes pursuant to a supplemental indenture in a form reasonably satisfactory to the Trustee; and

(iii) an Opinion of Counsel and Officer’s Certificate have been delivered to the Trustee as required by Section 803 of the Base Indenture.

(b) Article Eight of the Base Indenture shall not apply to a sale, assignment, transfer, conveyance or other disposition of assets between or among the Company and any of the Guarantors.

40

ARTICLE VIII

[RESERVED]

ARTICLE IX

REPURCHASE OF NOTES AT OPTION OF HOLDERS

Section 9.01. Repurchase of Securities at Option of the Holder on Specified Dates . The provisions of Article Thirteen of the Base Indenture shall not be applicable to the Notes.

Section 9.02. Repurchase at Option of Holders . If a Change of Control occurs, unless the Company has previously or concurrently mailed or caused to be mailed notice of a redemption of all of the outstanding Notes under paragraph 5 of the Notes (unless and until there is a default in payment of the applicable redemption price), each Holder will have the right to require the Company to repurchase all or any part (equal to at least $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s Notes pursuant to an offer (the “ Change of Control Offer ”) on the terms set forth in this Section. In the Change of Control Offer, the Company will offer a payment (the “ Change of Control Payment ”) in cash equal to 101% of the aggregate principal amount of Notes repurchased plus accrued and unpaid interest, if any, on the Notes repurchased, to (but not including) the date of purchase.

Within 30 days following any Change of Control or, at the Company’s option, prior to any Change of Control, but after public announcement of the transaction that constitutes or may constitute the Change of Control, the Company will send or cause to be sent notice of such Change of Control Offer, with a copy to the Trustee and the Depositary, by first-class mail, to each Holder to the address of such Holder appearing in the Security Register or otherwise in accordance with the procedures of the Depositary, with the following information:

(1) that a Change of Control Offer is being made pursuant to this Section 9.02 and that all Notes properly tendered pursuant to such Change of Control Offer will be accepted for payment by the Company;

(2) the purchase price and the purchase date, which will be no earlier than 30 days nor later than 60 days from the date such notice is mailed or, if the notice is mailed prior to the Change of Control, no earlier than 30 days and no later than 60 days after the date on which the Change of Control occurs (the “ Change of Control Payment Date ”);

(3) that any Note not properly tendered will remain outstanding and continue to accrue interest;

(4) that unless the Company defaults in the payment of the Change of Control Payment, all Notes accepted for payment pursuant to the Change of Control Offer will cease to accrue interest on the Change of Control Payment Date;

(5) that Holders electing to have any Notes purchased pursuant to a Change of Control Offer will be required to surrender such Notes, with the form entitled “Option of Holder to Elect Purchase” on the reverse of such Notes completed, to the Paying Agent specified in the notice at the address specified in the notice prior to the close of business on the third Business Day preceding the Change of Control Payment Date;

41

(6) that Holders tendering less than all of their Notes will be issued new Notes and such new Notes will be equal in principal amount to the unpurchased portion of the Notes surrendered; and

(7) other instructions, as determined by the Company, consistent with this Section 9.02, that a Holder must follow to tender Notes pursuant to such Change of Control Offer.

On the Change of Control Payment Date, the Company shall, to the extent lawful:

(1) accept for payment all Notes or portions of Notes properly tendered pursuant to the Change of Control Offer;

(2) deposit with the Paying Agent an amount equal to the aggregate Change of Control Payment in respect of all Notes or portions of Notes properly tendered; and

(3) deliver, or cause to be delivered, to the Trustee for cancellation the Notes so accepted together with an Officer’s Certificate stating the aggregate principal amount of Notes or portions of Notes being purchased by the Company.

The Paying Agent will promptly send to each Holder of Notes so tendered the Change of Control Payment for such Notes, and the Trustee will promptly authenticate and mail (or cause to be transferred by book-entry) to each Holder a new Note equal in principal amount to any unpurchased portion of the Notes surrendered, if any; provided that each such new Note will be in a principal amount of at least $2,000 or an integral multiple of $1,000 in excess thereof.

If the Change of Control Payment Date is on or after a Record Date and on or before the related Interest Payment Date, any accrued and unpaid interest, if any, will be paid on the Change of Control Payment Date to the Person in whose name a Note is registered at the Close of Business on such Record Date, and no additional interest will be payable to Holders who tender pursuant to the Change of Control Offer.

Upon the payment of the Change of Control Payment, the Trustee shall, subject to the provisions of Section 2.05, return the Notes purchased to the Company for cancellation. The Trustee may act as the Paying Agent for purposes of any Change of Control Offer.

The Company shall not be required to make a Change of Control Offer upon a Change of Control if a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in this Section 9.02 applicable to a Change of Control Offer made by the Company and purchases all Notes properly tendered under the Change of Control Offer. Any Change of Control Offer may be made in advance of a Change of Control, conditional upon such Change of Control, if a definitive agreement is in place for the Change of Control at the time of making of the Change of Control Offer.

The Company shall comply with the requirements of Rule 14e-1 under the Exchange Act, and any other securities laws and regulations thereunder, to the extent such laws or regulations are applicable in connection with the repurchase of the Notes pursuant to a Change of Control Offer. To the extent that the provisions of any securities laws or regulations conflict with the provisions of the Indenture, the Company shall comply with the applicable securities laws and regulations and shall not be deemed to

42

have breached its obligations described in the Indenture by virtue thereof. The Company may from time to time repurchase Notes other than pursuant to a Change of Control Offer or optional redemption, whether by tender offer, open market purchase, or otherwise, in accordance with applicable securities laws.

ARTICLE X

MISCELLANEOUS PROVISIONS

Section 10.01. Ratification of Base Indenture . Except as expressly modified or amended hereby, the Base Indenture continues in full force and effect and is in all respects confirmed, ratified and preserved and the provisions thereof shall be applicable to the Notes and this Supplemental Indenture.

Section 10.02. Provisions Binding on Company’s Successors . All the covenants, stipulations, promises and agreements of the Company contained in this Supplemental Indenture shall bind its successors and assigns whether so expressed or not.

Section 10.03. Official Acts by Successor Corporation . Any act or proceeding by any provision of this Supplemental Indenture authorized or required to be done or performed by any board, committee or officer of the Company shall and may be done and performed with like force and effect by the like board, committee or officer of any corporation or entity that shall at the time be the lawful sole successor of the Company.

Section 10.04. Addresses for Notices, Etc . Any notice or demand which by any provision of this Supplemental Indenture is required or permitted to be given or served by the Trustee or by the Noteholders on the Company or the Guarantors shall be deemed to have been sufficiently given or made, for all purposes if given or served by being deposited postage prepaid by registered or certified mail in a post office letter box addressed (until another address is filed by the Company with the Trustee) to the Company at 1301 Concord Terrace, Sunrise, Florida 33323, Attention: General Counsel. Any notice, direction, request or demand hereunder to or upon the Trustee shall be deemed to have been sufficiently given or made, for all purposes, if given or served by being deposited postage prepaid by registered or certified mail in a post office letter box addressed to U.S. Bank National Association at 1349 W. Peachtree Street, Suite 1050, Atlanta, Georgia 30309, Attention: George Hogan.

The Trustee, by notice to the Company, may designate additional or different addresses for subsequent notices or communications.

Any notice or communication mailed to a Noteholder shall be mailed to him by first class mail, postage prepaid, at his address as it appears on the Security Register and shall be sufficiently given to him if so mailed within the time prescribed.

Failure to mail a notice or communication to a Noteholder or any defect in it shall not affect its sufficiency with respect to other Noteholders. If a notice or communication is mailed in the manner provided above, it is duly given, whether or not the addressee receives it.

Section 10.05. Governing Law. THIS SUPPLEMENTAL INDENTURE AND THE NOTES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES OF SUCH STATE OTHER THAN NEW YORK GENERAL OBLIGATIONS LAW SECTION 5-1401. THIS SUPPLEMENTAL INDENTURE IS SUBJECT TO THE PROVISIONS OF THE TIA THAT ARE REQUIRED TO BE A PART OF THIS SUPPLEMENTAL INDENTURE AND SHALL, TO THE EXTENT APPLICABLE, BE GOVERNED BY SUCH PROVISIONS.

43

Section 10.06. Intentionally Omitted .

Section 10.07. Benefits of Indenture . Nothing in the Indenture or in the Notes, expressed or implied, shall give to any person, other than the parties hereto, any Paying Agent, any authenticating agent, any Security Registrar and their successors hereunder, the Noteholders, any benefit or any legal or equitable right, remedy or claim under the Indenture.

Section 10.08. Table of Contents, Headings, Etc . The table of contents and the titles and headings of the articles and sections of this Supplemental Indenture have been inserted for convenience of reference only, are not to be considered a part hereof, and shall in no way modify or restrict any of the terms or provisions hereof.

Section 10.09. Counterparts . This Supplemental Indenture may be executed and delivered in any number of counterparts, each of which when so executed and delivered shall be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument.

Section 10.10. Trustee . The Trustee makes no representations as to the validity or sufficiency of this Supplemental Indenture. The statements and recitals herein are deemed to be those of the Company and not of the Trustee.

Section 10.11. Further Instruments and Acts . Upon request of the Trustee, the Company will execute and deliver such further instruments and do such further acts as may be reasonably necessary or proper to carry out more effectively the purposes of this Supplemental Indenture.

Section 10.12. Waiver of Jury Trial . EACH OF THE COMPANY, THE GUARANTORS AND THE TRUSTEE HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THE INDENTURE, THE NOTES OR THE TRANSACTION CONTEMPLATED HEREBY.

Section 10.13. Force Majeure . In no event shall the Trustee be responsible or liable for any failure or delay in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or other acts of God, and interruptions, loss or malfunction of utilities, communications or computer (software or hardware) services; it being understood that the Trustee shall use reasonable efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable under the circumstances.

ARTICLE XI

GUARANTEES

Section 11.01. Guarantee .

(a) Subject to this Article XI, each of the Guarantors hereby, jointly and severally, unconditionally guarantees on an unsecured, unsubordinated basis, to each Holder of a Note, authenticated and delivered by the Trustee, and to the Trustee and its successors and assigns, irrespective of the validity

44

and enforceability of this Supplemental Indenture or the Base Indenture, the Notes or the obligations of the Company hereunder or thereunder, that:

(i) the principal of, premium, if any, and interest on, the Notes will be promptly paid in full when due, whether at maturity, by acceleration or otherwise, and interest on the overdue principal and interest on the Notes, if any, if lawful, and all other obligations of the Company to the Holders or the Trustee hereunder or thereunder will be promptly paid in full or performed, all in accordance with the terms hereof and thereof; and

(ii) in case of any extension of time of payment or renewal of any Notes or any of such other obligations, that same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at Stated Maturity, by acceleration or otherwise.

Failing payment when due of any amount so guaranteed or any performance so guaranteed for any reason whatsoever, the Guarantors shall be jointly and severally obligated to pay the same immediately. Each Guarantor agrees that this is a guarantee of payment and not a guarantee of collection.

(b) The Guarantors hereby agree that their obligations hereunder are unconditional, irrespective of the validity, regularity or enforceability of this Supplemental Indenture or the Base Indenture, the Notes, the absence of any action to enforce the same, any waiver or consent by any Holder of the Notes with respect to any provisions hereof or thereof, the recovery of any judgment against the Company, any action to enforce the same or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a Guarantor. Each Guarantor hereby waives diligence, presentment, demand of payment, filing of claims with a court in the event of bankruptcy or insolvency of the Company, any right to require a proceeding first against the Company, protest, notice and all demands whatsoever and covenant that this Guarantee will not be discharged except by complete performance of the obligations contained in the Notes and the Indenture.

(c) If any Holder or the Trustee is required by any court or otherwise to return to the Company, the Guarantors or any custodian, trustee, liquidator or other similar official acting in relation to either the Company or the Guarantors, any amount paid either to the Trustee or such Holder, this Guarantee, to the extent theretofore discharged, shall be reinstated in full force and effect.

(d) Each Guarantor agrees that it shall not be entitled to any right of subrogation in relation to the Holders in respect of any obligations guaranteed hereby until payment in full of all obligations under the Notes guaranteed hereby. Each Guarantor further agrees that, as between the Guarantors, on the one hand, and the Holders and the Trustee, on the other hand, (1) the maturity of the obligations guaranteed hereby may be accelerated as provided in Article Five hereof for the purposes of this Guarantee, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the obligations guaranteed hereby, and (2) in the event of any declaration of acceleration of such obligations as provided in Article Five hereof, such obligations (whether or not due and payable) will forthwith become due and payable by the Guarantors for purposes of this Guarantee. The Guarantors will have the right to seek contribution from any other Guarantor, or the Company, as the case may be, so long as the exercise of such right does not impair the rights of the Holders under this Guarantee.

Section 11.02. Limitation on Guarantor Liability . Each Guarantor, and by its acceptance of the Notes, each Holder, hereby confirms that it is the intention of all such parties that the Guarantee of such Guarantor of the Notes not constitute a fraudulent transfer, fraudulent conveyance or fraudulent obligation for purposes of Bankruptcy Law, the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent Transfer Act or any similar federal or state law to the extent applicable to any Guarantee

45

of the Notes. To effectuate the foregoing intention, the Trustee, the Holders and the Guarantors hereby irrevocably agree that the obligations of such Guarantor shall be limited to the maximum amount that shall, after giving effect to such maximum amount and all other contingent and fixed liabilities of such Guarantor that are relevant under such laws, and after giving effect to any collections from, rights to receive contributions from or payments made by or on behalf of any other Guarantor in respect of the obligations of such other Guarantor under this Article XI that are relevant under such laws, result in the obligations of such Guarantor under its Guarantee of the Notes not constituting a fraudulent transfer, fraudulent conveyance or fraudulent obligation.

Section 11.03. Execution and Delivery of Guarantees .

(a) To evidence its Guarantee set forth in Section 11.01 hereof, each Guarantor hereby agrees that this Supplemental Indenture shall be executed on behalf of such Guarantor by one of its authorized officers or attorneys-in-fact.

(b) Each Guarantor hereby agrees that its Guarantee set forth in Section 11.01 hereof shall remain in full force and effect notwithstanding the absence of the endorsement of any notation of such Guarantee.

(c) If an officer or attorney-in-fact whose signature is on this Supplemental Indenture no longer holds that office or is so appointed at the time the Trustee authenticates the Note, the Guarantee shall be valid nevertheless.

(d) The delivery of any Note by the Trustee, after the authentication thereof hereunder, shall constitute delivery of the Guarantee with respect to the Notes set forth in the Indenture on behalf of the Guarantors.

(e) If required by Section 4.04 hereof, the Company shall cause any Subsidiary that is not a Guarantor to comply with the provisions of Section 4.04 hereof and this Article XI, to the extent applicable.

Section 11.04. Contribution . Each Guarantor that makes a payment or distribution under its Guarantee of the Notes shall be entitled to contribution from any other Guarantor or the Company, as the case may be.

Section 11.05. Releases .

(a) The Guarantee of the Notes by a Guarantor will be automatically and unconditionally released, and any Person acquiring assets (including by way of merger or consolidation) or Capital Stock of a Guarantor shall not be required to assume the obligations of any such Guarantor:

(1) in connection with any sale, exchange, transfer, conveyance or other disposition of (whether by merger, consolidation or the sale of) a majority of the Capital Stock of such Guarantor (or such lesser portion as is sufficient for such Guarantor to cease to be a Subsidiary of the Company) or the sale of all or substantially all the assets of such Guarantor, to or with and into a Person which is not the Company or another Subsidiary of the Company;

(2) if any Guarantor is dissolved or otherwise no longer obligated to provide a Guarantee of the Notes pursuant to the Indenture;

46

(3) if such Guarantor’s guarantee of any obligations under any Debt Facility of the Company (including the Credit Agreement) with an aggregate principal or committed amount of $250 million or more is fully and unconditionally released, except that such Guarantor shall subsequently be required to become a Guarantor by executing a supplemental indenture and providing the Trustee with an Officer’s Certificate and Opinion of Counsel as required by the Indenture at such time as it guarantees any obligations under any Debt Facility of the Company (including the Credit Agreement) with an aggregate principal or committed amount of $250 million or more; or

(4) upon the Company’s exercise of its legal defeasance option or covenant defeasance option as described in Section 12.02 or Section 12.03 hereof or if the Company’s obligations under the Indenture and the Notes are discharged in accordance with Section 12.01 hereof.

(b) The Trustee shall execute any documents reasonably requested by either the Company or a Guarantor in order to evidence the release of such Guarantor from its obligations under its Guarantee under this Article XI, subject to the Trustee’s receipt of an Opinion of Counsel and Officer’s Certificates stating that all conditions precedent to such release have been met.

ARTICLE XII

DISCHARGE; DEFEASANCE

The provisions of Article Four and Article Fourteen of the Base Indenture shall not be applicable to the Notes, and the following shall apply to the Notes:

Section 12.01. Discharge of Indenture . The Indenture will be discharged and will cease to be of further effect as to all Notes and the Guarantees thereof, and the Trustee (except to the extent that Securities other than the Notes are Outstanding), at the request and expense of the Company, will execute proper instruments acknowledging satisfaction and discharge of the Indenture, the Notes and the Guarantees of the Notes, when:

(a) either:

(A) all Notes that have been authenticated, except lost, stolen or destroyed Notes that have been replaced or paid and Notes for whose payment money has been deposited in trust and thereafter repaid to the Company, have been delivered to the Trustee for cancellation; or

(B) all Notes that have not been delivered to the Trustee for cancellation have become due and payable by reason of the mailing of a notice of redemption or otherwise or will become due and payable within one year and the Company or any Guarantor has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust solely for the benefit of the Holders, cash in U.S. Dollars, U.S. Government Obligations, or a combination of cash in U.S. Dollars and U.S. Government Obligations, in such amounts as will be sufficient without consideration of any reinvestment of interest, to pay and discharge the entire indebtedness on the Notes not delivered to the Trustee for cancellation for principal, premium and accrued interest to the date of maturity or redemption;

(b) the Company or any Guarantor has paid or caused to be paid all sums payable by it under the Indenture; and

47

(c) the Company has delivered irrevocable instructions to the Trustee under the Indenture to apply the deposited money toward the payment of Notes at maturity or the Redemption Date, as the case may be.

In addition, the Company shall deliver an Officer’s Certificate and an Opinion of Counsel to the Trustee stating that all conditions precedent to satisfaction and discharge have been satisfied or waived.

The Trustee shall acknowledge satisfaction and discharge of the Indenture with respect to the Notes and the Guarantees of the Notes on demand of and at the expense of the Company.

Notwithstanding the satisfaction and discharge of the Indenture, the obligations of the Company in Section 606 of the Base Indenture and Section 12.05, 12.06, 12.07 and 12.08 hereof shall survive such satisfaction and discharge.

Section 12.02. Legal Defeasance . The Company may, at its option and at any time, elect to have all of its obligations and the obligations of the Guarantors discharged with respect to the Outstanding Notes and Guarantees of the Notes on a date the conditions set forth in Section 12.04 are satisfied (hereinafter, “ Legal Defeasance ”). For this purpose, such Legal Defeasance means that the Company and the Guarantors will be deemed to have paid and discharged the entire Indebtedness represented by the Outstanding Notes and Guarantees of the Notes and to have satisfied all their other obligations under such Notes, the Guarantees of the Notes and the Indenture (and the Trustee, at the request and expense of the Company, shall, subject to Section 12.06, execute instruments in form and substance reasonably satisfactory to the Trustee and the Company acknowledging the same), except for the following which shall survive until otherwise terminated or discharged hereunder: (1) the rights of Holders of Outstanding Notes to receive, solely from the trust funds described in Section 12.04 and as more fully set forth in Section 12.04, payments in respect of the principal of, premium, if any, and interest on such Notes when such payments are due, (2) the Company’s obligations with respect to such Notes under Article Two and Sections 1002 and 1003 of the Base Indenture, (3) the rights, powers, trusts, duties, and immunities of the Trustee hereunder (including claims of, or payments to, the Trustee under or pursuant to Section 606 of the Base Indenture) and the Company’s obligations in connection therewith and (4) this Article Twelve.

Subject to compliance with this Article Twelve, the Company may exercise its option under this Section 12.02 with respect to the Notes notwithstanding the prior exercise of its option under Section 12.03 below with respect to the Notes.

Section 12.03. Covenant Defeasance . The Company may, at its option and at any time, elect to have all of its obligations and the obligations of the Guarantors under Sections 4.03 through 4.09, 4.12, 7.01(a), 9.01 and 9.02 (except for obligations mandated by the TIA) released with respect to the Outstanding Notes and Guarantees of the Notes on a date the conditions set forth in Section 12.04 are satisfied (hereinafter, “ Covenant Defeasance ”). For this purpose, Covenant Defeasance means that, with respect to the Outstanding Notes and Guarantees of the Notes, the Company and the Guarantors may fail to comply with and shall have no liability in respect of any term, condition or limitation set forth in any such covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such covenant or by reason of any reference in any such covenant to any other provision herein or in any other document, and such omission to comply shall not constitute a Default or an Event of Default under Section 5.01, but, except as specified above, the remainder of the Indenture, the Notes and the Guarantees of the Notes shall be unaffected thereby. In addition, upon the Company’s exercise of the option in this Section 12.03, subject to the satisfaction of the conditions set forth in Section 12.04, Sections 5.01(c), (d), (e) and (f) (solely with respect to any Guarantor that is a Significant Subsidiary or any group of Guarantors that, taken together, would constitute a Significant Subsidiary) shall not constitute Events of Default.

48

Notwithstanding any discharge or release of any obligations under the Indenture pursuant to Section 12.02 or this Section 12.03, the Company’s obligations in Article Two and Sections 12.05, 12.06, 12.07 and 12.08 shall survive until such time as the Notes have been paid in full. Thereafter, the Company’s obligations in Section 606 of the Base Indenture and Sections 12.05, 12.07 and 12.08 hereof shall survive.

Section 12.04. Conditions to Legal Defeasance or Covenant Defeasance . The following shall be the conditions to application of Section 12.02 or Section 12.03 to the outstanding Notes:

(a) the Company must irrevocably deposit with the Trustee, in trust, for the benefit of the Holders, cash in U.S. Dollars, U.S. Government Obligations or a combination thereof in such amounts as will be sufficient, in the opinion of a nationally recognized firm of independent public accountants (such opinion shall be addressed and delivered to the Trustee, and upon which the Trustee shall have no liability in relying), to pay the principal, premium, if any, and interest on the Notes Outstanding on the Stated Maturity date or on the applicable Redemption Date, as the case may be, and the Company must specify whether such Notes are being defeased to maturity or to a particular Redemption Date;

(b) in the case of Legal Defeasance, the Company shall have delivered to the Trustee an Opinion of Counsel in the United States (upon which the Trustee shall have no liability in relying) confirming that (a) the Company has received from, or there has been published by, the Internal Revenue Service a ruling or (b) since the Issue Date, there has been a change in the applicable federal income tax law, in either case to the effect that, and based thereon such Opinion of Counsel shall confirm that, the Holders will not recognize income, gain or loss for federal income tax purposes as a result of such Legal Defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such Legal Defeasance had not occurred;

(c) in the case of Covenant Defeasance, the Company shall have delivered to the Trustee an Opinion of Counsel in the United States (upon which the Trustee shall have no liability in relying) confirming that the Holders of the Notes Outstanding will not recognize income, gain or loss for federal income tax purposes as a result of such Covenant Defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such Covenant Defeasance had not occurred;

(d) no Default or Event of Default shall have occurred and be continuing on the date of such deposit (other than a Default or Event of Default resulting from the borrowing of funds to be applied to such deposit and the grant of any Lien securing such borrowing);

(e) such Legal Defeasance or Covenant Defeasance will not result in a breach or violation of, or constitute a default under any material agreement or instrument (other than the Indenture and the agreements governing any other Indebtedness being defeased, discharged or replaced) to which the Company or any of its Subsidiaries is a party or by which the Company or any of its Subsidiaries is bound;

(f) the Company must deliver to the Trustee an Officer’s Certificate (upon which the Trustee shall have no liability in relying) stating that the deposit was not made by the Company with the intent of preferring the Holders over the other creditors of the Company with the intent of defeating, hindering, delaying or defrauding creditors of the Company or others; and

49

(g) the Company must deliver to the Trustee an Officer’s Certificate and an Opinion of Counsel (upon which the Trustee shall have no liability in relying), each stating that all conditions precedent relating to the Legal Defeasance or the Covenant Defeasance have been complied with.

Notwithstanding the foregoing, the Opinion of Counsel required by clause (b) above with respect to a Legal Defeasance need not be delivered if all Notes not theretofore delivered to the Trustee for cancellation (x) have become due and payable or (y) will become due and payable on the maturity date within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Company.

Section 12.05. Deposited Money and U.S. Government Obligations To Be Held in Trust . Subject to Section 12.08, all money and U.S. Government Obligations (including the proceeds thereof) deposited with the Trustee pursuant to Sections 12.01 and 12.04 in respect of the Outstanding Notes shall be held in trust and applied by the Trustee, in accordance with the provisions of such Notes and the Indenture, to the payment, either directly or through any Paying Agents, to the Holders of such Notes, of all sums due and to become due thereon in respect of principal, premium, if any, and accrued interest, but such money need not be segregated from other funds except to the extent required by law.

The Company and the Guarantors shall (on a joint and several basis) pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the U.S. Government Obligations deposited pursuant to Sections 12.01 and 12.04 or the principal, premium, if any, and interest received in respect thereof other than any such tax, fee or other charge which by law is for the account of the Holders of the Outstanding Notes.

Anything in this Article Twelve to the contrary notwithstanding, the Trustee shall deliver or pay to the Company from time to time upon a request of the Company any money or U.S. Government Obligations held by it as provided in Sections 12.01 and 12.04 which, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, are in excess of the amount thereof which would then be required to be deposited to effect an equivalent satisfaction and discharge, Legal Defeasance or Covenant Defeasance.

Section 12.06. Reinstatement . If the Trustee or any Paying Agent is unable to apply any money or U.S. Government Obligations in accordance with Section 12.01, 12.02 or 12.03 by reason of any legal proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Company’s and each Guarantor’s obligations under the Indenture, the Notes and the Guarantees of the Notes shall be revived and reinstated as though no deposit had occurred pursuant to this Article Twelve until such time as the Trustee or such Paying Agent is permitted to apply all such money or U.S. Government Obligations in accordance with Section 12.01, 12.02 or 12.03; provided that if the Company or the Guarantors have made any payment of principal of, premium, if any, or accrued interest on any Notes because of the reinstatement of their obligations, the Company or the Guarantors, as the case may be, shall be subrogated to the rights of the Holders of such Notes to receive such payment from the money or U.S. Government Obligations held by the Trustee or any Paying Agent.

Section 12.07. Moneys Held by Paying Agent . In connection with the satisfaction and discharge or defeasance of the Indenture, all moneys and U.S. Government Obligations then held by any Paying Agent under the provisions of the Indenture shall, upon written demand of the Company, be paid or delivered to the Trustee, or if sufficient moneys and U.S. Government Obligations have been deposited pursuant to Section 12.01 or 12.04, as the case may be, to the Company (or, if such moneys and U.S. Government Obligations were deposited by the Guarantors, to such Guarantors) within five Business Days after a request of the Company, and thereupon such Paying Agent shall be released from all further liability with respect to such moneys.

50

Section 12.08. Moneys Held by Trustee . Subject to applicable law, any moneys and U.S. Government Obligations deposited with the Trustee or any Paying Agent or then held by the Company or the Guarantors in trust for the payment of the principal of, or premium, if any, or interest on any Note that are not applied but remain unclaimed by the Holder of such Note for two years after the date upon which the principal of, or premium, if any, or interest on such Note shall have respectively become due and payable shall be repaid or returned to the Company (or, if appropriate, the Guarantors) upon a request of the Company, or if such moneys and U.S. Government Obligations are then held by the Company or the Guarantors in trust, such moneys and U.S. Government Obligations shall be released from such trust; and the Holder of such Note entitled to receive such payment shall thereafter, as an unsecured general creditor, look only to the Company and the Guarantors for the payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust moneys and U.S. Government Obligations shall thereupon cease; provided that the Trustee or any such Paying Agent, before being required to make any such repayment, may, at the expense of the Company and the Guarantors, either mail to each Noteholder affected, at the address shown in the Security Register, or cause to be published once, in one newspaper published in the English language, customarily published each Business Day and of general circulation in The City of New York, the State of New York, a notice that such moneys and U.S. Government Obligations remain unclaimed and that, after a date specified therein, which shall not be less than 30 days from the date of such mailing or publication, any unclaimed balance of such moneys and U.S. Government Obligations then remaining will be repaid or returned to the Company. After payment or return to the Company or the Guarantors or the release of any moneys and U.S. Government Obligations held in trust by the Company or any Guarantors, as the case may be, Holders entitled thereto must look only to the Company and the Guarantors for payment as general creditors unless applicable abandoned property law designates another Person.

51

IN WITNESS WHEREOF , the parties hereto have caused this First Supplemental Indenture to be duly executed by their respective officers hereunto duly authorized, all as of the day and year first above written.

[Mednax – Supplemental Indenture]

[Mednax – Supplemental Indenture]

[Mednax – Supplemental Indenture]

[Mednax – Supplemental Indenture]

[Mednax – Supplemental Indenture]

[Mednax – Supplemental Indenture]

[Mednax – Supplemental Indenture]

[Mednax – Supplemental Indenture]

SCHEDULE A

Sch. A-1

Sch. A-2

MEDNAX, Inc., a Florida corporation, as issuer (the “ Company ”), for value received, promises to pay to CEDE & CO., or registered assigns the principal sum of [        ] Dollars ($[        ]) (or such other principal amount as shall be set forth in the Schedule of Exchanges of Interests in Global Note attached hereto), on December 1, 2023.

Interest Payment Dates:    June 1 and December 1 commencing June 1, 2016.

Record Dates:    May 15 and November 15 (whether or not a Business Day).

Reference is made to the further provisions of this Note contained herein, which will for all purposes have the same effect as if set forth at this place.

Exh. A-1

IN WITNESS WHEREOF, the Company has caused this Note to be signed manually or by facsimile by its duly authorized officer.

Exh. A-2

Certificate of Authentication

This is one of the 5.25% Senior Notes due 2023 referred to in the within-mentioned Indenture.

Dated:                     

Exh. A-3

[FORM OF REVERSE OF GLOBAL NOTE]

MEDNAX, INC.

5.25% SENIOR NOTE DUE 2023

1. Interest . MEDNAX, Inc., a Florida corporation, as issuer (the “ Company ”), promises to pay interest on the principal amount set forth on the face hereof at a rate of 5.25% per annum. Interest hereon will accrue from and including the most recent date to which interest has most recently been paid or, if no interest has been paid, from and including December 8, 2015. Interest shall be payable in arrears on each June 1 and December 1, commencing June 1, 2016. If any payment date is not a Business Day at a place of payment, payment may be made at that place on the next succeeding Business Day, and no interest shall accrue for the intervening period. Interest will be computed on the basis of a 360-day year of twelve 30-day months. The Company shall pay interest on overdue principal and on overdue interest (to the full extent permitted by law) at the rate stated above.

2. Method of Payment . The Company will pay interest hereon (except defaulted interest) to the Persons who are registered Holders at the close of business on the May 15 or November 15 immediately preceding the interest payment date (whether or not a Business Day). Holders must surrender Notes to a Paying Agent to collect principal payments. The Company will pay principal and interest in U.S. Dollars. Interest may be paid by check mailed to the Holder entitled thereto at the address indicated on the register maintained by the Security Registrar.

3. Paying Agent and Depositary . Initially, U.S. Bank National Association (the “ Trustee ”) will act as a Paying Agent and Depositary. The Company may change any Paying Agent or Depositary without notice. The Company or any Affiliate thereof may act as Paying Agent or Depositary.

4. Indenture . The Company has entered into an Indenture dated as of December 8, 2015 (the “ Base Indenture ”) between the Company and the Trustee, as supplemented by the Supplemental Indenture dated as of December 8, 2015 (the “ Supplemental Indenture ” and, together with the Supplemental Indenture, the “ Indenture ”) among the Company, the Guarantors and the Trustee. This is one of an issue of Notes of the Company issued, or to be issued, under the Indenture. The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act of 1939 (15 U.S. Code §§ 77aaa-77bbbb), as amended from time to time. The Notes are subject to all such terms, and Holders are referred to the Indenture and such Act for a statement of them. Capitalized and certain other terms used herein and not otherwise defined have the meanings set forth in the Indenture. To the extent any provision of the Indenture conflicts with any provision of this Note, the provision of the Indenture shall govern.

5. Optional Redemption .

(a) At any time prior to December 1, 2018, the Company may on any one or more occasions redeem up to 35% of the aggregate principal amount of the Notes (including any additional Notes) at a redemption price of 105.250% of the principal amount, plus accrued and unpaid interest, if any, to (but not including) the redemption date, with the net cash proceeds of one or more Equity Offerings; provided that:

(1) at least 65% of the aggregate principal amount of such Notes remains outstanding immediately after the occurrence of such redemption (excluding Notes held by the Company and its Subsidiaries); and

(2) the redemption occurs within 180 days after the date of consummation of the sale of the securities issued in such Equity Offering.

Exh. A-4

(b) At any time prior to December 1, 2018, the Company may redeem all or any part of the Notes, upon not less than 30 nor more than 60 days’ notice, at a redemption price equal to 100% of the principal amount thereof, plus the Applicable Redemption Premium and accrued and unpaid interest to (but not including) the redemption date.

(c) Except pursuant to the preceding two paragraphs, the Notes will not be redeemable at the Company’s option prior to December 1, 2018. On or after December 1, 2018, the Company may redeem all or a part of the Notes upon not less than 30 nor more than 60 days’ notice, at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest, if any, on the Notes redeemed, to (but not including) the applicable redemption date, if redeemed during the twelve-month period beginning on December 1 of the years indicated below:

6. Mandatory Redemption . Except as set forth in Section 8 below and Section 9.02 of the Supplemental Indenture, the Company is not required to make mandatory redemption of the Notes or any sinking fund payments with respect to the Notes.

7. Notice of Redemption . Notices of redemption shall be mailed by first class mail at least 30 but not more than 60 days before the redemption date to each Holder of Notes to be redeemed at its registered address. If any Note is to be redeemed in part only, the notice of redemption that relates to such Note shall state the portion of the principal amount thereof to be redeemed. Any notice of any redemption may, at the Company’s discretion, be subject to one or more conditions precedent, including, but not limited to, completion of a public or private offering for cash by the Company of its common stock or other corporate transaction.

8. Offer To Purchase . The Indenture provides that upon the occurrence of a Change of Control and subject to further limitations contained therein, the Company shall make an offer to purchase Outstanding Notes in accordance with the procedures set forth in the Indenture.

9. Denominations, Transfer, Exchange . The Notes are in registered form without coupons in denominations of $2,000 and integral multiples of $1,000 in excess thereof. A Holder may transfer or exchange Notes only in accordance with the Indenture. The Security Registrar may require a Holder, among other things, to furnish appropriate endorsements and transfer documents and to pay to it any taxes and fees required by law or permitted by the Indenture. Neither the Security Registrar nor the Company shall be required to register the transfer of or exchange any Note or portion of a Note selected for redemption (except the unredeemed portion of any Note redeemed in part), or register the transfer of or exchange any Note during the period beginning at the opening of business 15 days immediately preceding a mailing of the notice of redemption and ending at the close of business on the day of such mailing.

10. Persons Deemed Owners . The registered Holder of this Note may be treated as the owner of this Note for all purposes.

Exh. A-5

11. Unclaimed Money . If money for the payment of principal or interest remains unclaimed for two years, the Trustee will pay the money back to the Company at its written request. After that, Holders entitled to the money must look to the Company and the Guarantors for payment as general creditors unless an “abandoned property” law designates another Person.

12. Amendment, Supplement, Waiver, Etc . As more fully set forth in the Indenture, the Company, the Guarantors and, if applicable, the Trustee may, without the consent of the Holders of any Outstanding Notes, amend, waive or supplement the Indenture or the Notes for certain specified purposes, including, among other things, curing ambiguities, defects or inconsistencies, maintaining the qualification of the Indenture under the TIA, providing for the assumption by a successor to the Company of its obligations to the Holders and making any change that does not adversely affect the Indenture rights of any Holder in any material respect. Other amendments and modifications of the Indenture or the Notes may be made by the Company and the Trustee with the consent of the Holders of at least a majority of the aggregate principal amount of the outstanding Notes, subject to certain exceptions requiring the consent of the Holders of the particular Notes affected.

13. Restrictive Covenants . The Indenture imposes certain limitations on the ability of the Company and the Guarantors, as applicable, to, among other things, create Liens, enter into Sale and Lease-Back Transactions or consolidate, merge or sell all or substantially all of the assets of the Company or any Guarantor, and requires the Company to provide reports to Holders of the Notes. Such limitations are subject to a number of important qualifications and exceptions. Pursuant to Section 1006 of the Base Indenture, the Company must annually report to the Trustee on compliance with such limitations.

14. Successor Corporation . When a successor corporation assumes all the obligations of its predecessor under the Notes and the Indenture and the transaction complies with the terms of the Indenture, the predecessor corporation will, except as provided in the Indenture, be released from those obligations.

15. Defaults and Remedies . Events of Default are set forth in the Indenture. Upon the occurrence of an Event of Default, the rights and obligations of the Company, the Guarantors, the Trustee and the Holders will be as set forth in the applicable provisions of the Indenture.

Holders may not enforce the Indenture or the Notes except as provided in the Indenture. The Trustee may require indemnity satisfactory to it before it enforces the Indenture or the Notes. Subject to certain limitations, Holders of a majority in principal amount of the then Outstanding Notes may direct the Trustee in its exercise of any trust or power. The Trustee may withhold from Holders notice of any continuing Default or Event of Default (except a Default or Event of Default relating to the payment of principal of or interest on the Notes, including payments pursuant to a redemption or repurchase of the Notes under the Indenture) if a Responsible Officer in good faith determines that withholding notice is in the Holders’ interests.

16. Trustee Dealings with the Company . The Trustee, in its individual or any other capacity, may make loans to, accept deposits from and perform services for the Company or its Affiliates, and may otherwise deal with the Company or its Affiliates, as if it were not Trustee.

17. No Recourse Against Others . No director, officer, employee, incorporator or stockholder of the Company or any Guarantor, as such, will have any liability for any obligations of the Company or the Guarantors under the Notes, the Indenture, the Note Guarantees, or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws.

Exh. A-6

18. Discharge . The Company’s obligations pursuant to the Indenture will be discharged, except for obligations pursuant to certain sections thereof, subject to the terms of the Supplemental Indenture, upon the payment of all the Notes or upon the irrevocable deposit with the Trustee of cash in U.S. Dollars, U.S. Government Obligations or a combination thereof, in such amounts as will be sufficient to pay when due principal of and interest on the Notes to maturity or redemption, as the case may be.

19. Guarantees . From and after the Issue Date, the Notes will be entitled to the benefits of Guarantees of the Notes by the Guarantors made for the benefit of the Holders. Reference is hereby made to the Indenture for a statement of the respective rights, limitations of rights, duties and obligations thereunder of the Guarantors, the Trustee and the Holders.

20. Authentication . This Note shall not be valid until the Trustee or an authenticating agent signs the certificate of authentication on the other side of this Note.

21. Governing Law . THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES OF SUCH STATE OTHER THAN NEW YORK GENERAL OBLIGATIONS LAW SECTION 5-1401.

22. Abbreviations . Customary abbreviations may be used in the name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the entireties), JT TEN (= joint tenants with right of survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts to Minors Act).

23. CUSIP Numbers . The Company has caused CUSIP numbers to be printed on the Notes and has directed the Trustee to use CUSIP numbers in notices of redemption as a convenience to Holders. No representation is made as to the accuracy of such numbers either as printed on the Notes or as contained in any notice of redemption.

The Company will furnish to any Holder upon written request and without charge a copy of the Indenture. Requests may be made to:

MEDNAX, Inc.

1301 Concord Terrace

Sunrise, Florida 33323

Attn: General Counsel

Exh. A-7

ASSIGNMENT

I or we assign and transfer this Note to:

SIGNATURE GUARANTEE

Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Depositary, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Depositary in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

Exh. A-8

OPTION OF HOLDER TO ELECT PURCHASE

If you want to elect to have all or any part of this Note purchased by the Company pursuant to Section 9.02 of the Indenture, check the box:

If you want to have only part of the Note purchased by the Company pursuant to Section 9.02 of the Supplemental Indenture, state the amount you elect to have purchased:

Date:                     

SIGNATURE GUARANTEE

Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Depositary, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Depositary in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

Exh. A-10

EXHIBIT B

[FORM OF LEGEND FOR RESTRICTED SECURITIES]

Any Restricted Note authenticated and delivered hereunder shall bear a legend (which would be in addition to any other legends required in the case of a Global Note) in substantially the following form:

THIS NOTE HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION, AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, U.S. PERSONS EXCEPT AS SET FORTH BELOW. EACH PURCHASER OF THIS NOTE IS HEREBY NOTIFIED THAT THE SELLER OF THIS NOTE MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER OR ANOTHER EXEMPTION UNDER THE SECURITIES ACT.

BY ITS ACCEPTANCE HEREOF, THE HOLDER OF THIS NOTE (1) REPRESENTS THAT (A) IT IS A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT), (B) IT IS NOT A U.S. PERSON AND IS ACQUIRING THIS NOTE IN AN OFFSHORE TRANSACTION IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT OR (C) IT IS AN “INSTITUTIONAL” ACCREDITED INVESTOR (AS DEFINED IN RULE 501(a)(1), (2), (3) or (7) UNDER REGULATION D PROMULGATED UNDER THE SECURITIES ACT (AN ‘‘ACCREDITED INVESTOR”) AND (2) AGREES THAT IT WILL NOT WITHIN [ONE YEAR —FOR NOTES ISSUED PURSUANT TO RULE 144A ][40 DAYS —FOR NOTES ISSUED IN OFFSHORE TRANSACTIONS PURSUANT TO REGULATION S ] AFTER THE LATER OF THE DATE OF THE ORIGINAL ISSUANCE OF THIS NOTE AND THE DATE ON WHICH THE COMPANY OR ANY OF ITS RESPECTIVE AFFILIATES OWNED THIS NOTE, OFFER, RESELL OR OTHERWISE TRANSFER THIS NOTE EXCEPT (A) (I) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (II) FOR SO LONG AS THIS NOTE IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE SECURITIES ACT INSIDE THE UNITED STATES TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, (III) INSIDE THE UNITED STATES TO AN ACCREDITED INVESTOR THAT IS ACQUIRING THE NOTES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF SUCH AN ACCREDITED INVESTOR, IN EACH CASE IN A MINIMUM PRINCIPAL AMOUNT OF THE NOTES OF $250,000, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO OR FOR THE OFFER OR SALE IN CONNECTION WITH ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, AND THAT PRIOR TO SUCH TRANSFER, FURNISHES (OR HAS FURNISHED ON ITS BEHALF BY A U.S. BROKER-DEALER) TO THE TRUSTEE A SIGNED LETTER CONTAINING CERTAIN REPRESENTATIONS AND AGREEMENTS RELATING TO THE RESTRICTIONS ON TRANSFER OF THIS NOTE (THE FORM OF WHICH LETTER CAN BE OBTAINED FROM THE TRUSTEE FOR THIS NOTE), (IV) OUTSIDE THE UNITED STATES IN AN OFFSHORE TRANSACTION IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT (IF AVAILABLE), (V) PURSUANT TO THE EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT (IF AVAILABLE), (VI) IN ACCORDANCE WITH ANOTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (AND BASED UPON AN OPINION OF COUNSEL IF THE COMPANY SO REQUESTS),

Exh. B-1

OR (VII) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND (B) IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS OF THE STATES OF THE UNITED STATES AND OTHER JURISDICTIONS. BY ITS ACCEPTANCE HEREOF, THE HOLDER OF THIS NOTE FURTHER AGREES THAT IT WILL GIVE TO EACH PERSON TO WHOM THIS NOTE IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND. IN CONNECTION WITH ANY TRANSFER OF THIS NOTE PURSUANT TO SUBCLAUSES (III) TO (VI) OF CLAUSE (A) ABOVE, THE HOLDER MUST, PRIOR TO SUCH TRANSFER, FURNISH TO THE TRUSTEE AND THE COMPANY SUCH CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION AS EITHER OF THEM MAY REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. AS USED HEREIN, THE TERMS “OFFSHORE TRANSACTION,” “UNITED STATES” AND “U.S. PERSON” HAVE THE MEANINGS GIVEN TO THEM BY REGULATION S UNDER THE SECURITIES ACT.

Exh. B-2

EXHIBIT C

[FORM OF LEGEND FOR GLOBAL NOTE]

Any Global Note authenticated and delivered hereunder shall bear a legend (which would be in addition to any other legends required in the case of a Restricted Note) in substantially the following form:

THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE OF A DEPOSITARY. THIS NOTE IS NOT EXCHANGEABLE FOR NOTES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND NO TRANSFER OF THIS NOTE (OTHER THAN A TRANSFER OF THIS NOTE AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITORY OR ANOTHER NOMINEE OF THE DEPOSITARY) MAY BE REGISTERED EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

Exh. C-1

EXHIBIT D

[FORM OF LEGEND FOR NOTE ISSUED WITH OID]

Any Note issued with more than de minimis original issue discount for U.S. Federal Income Tax purposes authenticated and delivered hereunder shall bear a legend (which would be in addition to any other legends required in the case of a Restricted Note) in substantially the following form:

“THIS NOTE IS ISSUED WITH ORIGINAL ISSUE DISCOUNT FOR PURPOSES OF SECTION 1271 ET SEQ. OF THE INTERNAL REVENUE CODE. A HOLDER MAY OBTAIN THE ISSUE PRICE, AMOUNT OF ORIGINAL ISSUE DISCOUNT, ISSUE DATE AND YIELD TO MATURITY FOR SUCH NOTE BY SUBMITTING A REQUEST FOR SUCH INFORMATION TO THE COMPANY AT THE FOLLOWING ADDRESS: MEDNAX, INC., 1301 CONCORD TERRACE, SUNRISE, FLORIDA 33323, ATTENTION: INVESTOR RELATIONS.”

Exh. D-1

EXHIBIT E

[FORM OF LEGEND FOR TEMPORARY REGULATION S NOTE]

Any Regulation S Note authenticated and delivered hereunder shall bear a legend (which would be in addition to any other legends required in the case of a Restricted Note) for the 40-day distribution compliance period (as defined in Regulation S) in substantially the following form:

“BY ITS ACQUISITION HEREOF, THE HOLDER HEREOF REPRESENTS THAT IT IS NOT A U.S. PERSON, NOR IS IT PURCHASING FOR THE ACCOUNT OF A U.S. PERSON, AND IS ACQUIRING THIS NOTE IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH REGULATION S UNDER THE SECURITIES ACT.”

Exh. E-1

EXHIBIT F

FORM OF CERTIFICATE OF TRANSFER

MEDNAX, Inc.

1301 Concord Terrace

Sunrise, Florida 33323

U.S. Bank National Association

1349 W. Peachtree Street, Suite 1050,

Atlanta, Georgia 30309

re: MEDNAX, Inc..

Reference is hereby made to the Indenture, dated as of December 8, 2015 (as it may be amended or supplemented, the “ Base Indenture ”), between MEDNAX, Inc., as issuer (the “ Company ”), and U.S. Bank National Association, as trustee (the “ Trustee ”), and to the Supplemental Indenture, dated as of December 8, 2015 (as it may be amended or supplemented, the “ Supplemental Indenture ” and together with the Base Indenture, the “ Indenture ”), by and among the Company, the Guarantors and the Trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture.