Exhibit 4.1

Briggs & Stratton Corporation

and

Wells Fargo Bank, National Association, as Trustee

N.A. means Not Applicable.

Note: This Cross-Reference Table shall not, for any purposes, be deemed to be part of this Indenture.

TABLE OF CONTENTS

i

ii

iii

iv

EXHIBITS

v

INDENTURE, dated as of December 20, 2010, between Briggs & Stratton Corporation, a Wisconsin corporation, as issuer (the “ Company ”) and Wells Fargo Bank, National Association, a National Banking Association organized and existing under the laws of the United States of America, as trustee (the “ Trustee ”).

The Company has been duly authorized to provide for the issuance from time to time of its unsecured senior debentures or notes or other evidences of indebtedness (hereinafter called “ Securities ”) to be issued in one or more series as provided in and in accordance with this Indenture.

Each party, to the extent specifically provided herein, agrees as follows for the benefit of the other party and for the equal and ratable benefit of the Holders of the Securities.

ARTICLE I

DEFINITIONS AND INCORPORATION BY REFERENCE

SECTION 1.01. Definitions .

“ 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.

“ Agent ” means any Registrar, Paying Agent, Depository custodian, or agent for service or notices and demands.

“ amend ” means amend, modify, supplement, restate or amend and restate, including successively; and “ amending ” and “ amended ” have correlative meanings.

“ Applicable Procedures ” means, with respect to any payment, tender, redemption, transfer or exchange of or for beneficial interests in any Global Security, the rules and procedures of the Depository that apply to such payment, tender, redemption, transfer or exchange.

“ Bankruptcy Law ” means Title 11, United States Code, or any similar U.S. Federal or state law or law of any other jurisdiction relating to bankruptcy, insolvency, winding-up, liquidation, reorganization or relief of debtors.

“ Board of Directors ” means either the board of directors of the Company or any duly authorized committee of that board.

“ Board Resolution ” means a copy of a resolution certified by the Secretary or an Assistant Secretary of the Company to have been duly adopted by the Board of Directors and to be in full force and effect on the date of such certification, and delivered to the Trustee.

“ Business Day ” means a day on which commercial banking institutions and foreign exchange markets settle payments in New York City, and shall exclude any day on which commercial banking institutions and foreign exchange markets do not settle payments in London.

“ Capital Stock ” means, with respect to any Person, any and all shares, interests, rights to purchase, warrants, options, participations or other equivalents of or interests (including partnership interests) in (however designated) the equity of such Person, including any preferred stock, but excluding any debt securities convertible into such equity.

“ Commission ” means the U.S. Securities and Exchange Commission.

“ Company ” means the party named as such in the first paragraph of this Indenture, until a successor replaces such party pursuant to Article Five and thereafter means the successor.

1

“ Company Order ” means a written request or order signed in the name of the Company by its Chairman of the Board, its President or a Vice President, and by its Treasurer, an Assistant Treasurer, its Controller, an Assistant Controller, its Secretary or an Assistant Secretary, and delivered to the Trustee.

“ Corporate Trust Office ” means an office of the Trustee at which at any time this Indenture shall be administered, which office at the date hereof is located at Wells Fargo Bank, National Association, 230 W. Monroe Street, Suite 2900, Chicago, IL 60606, Attn: Corporate Trust Services, and for purposes of Section 2.04 and Section 4.02 such office shall also mean the office or agency of the Trustee located at 608 Second Avenue South, N9303-121, Minneapolis, MN 55479, Attn: Corporate Trust Operations, 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 (including any limited liability company), business trusts and limited partnerships.

“ Custodian ” means any receiver, interim receiver, receiver and manager, trustee, assignee, liquidator, custodian or similar official under any Bankruptcy Law.

“ Default ” means any event which is, or after notice or passage of time or both would be, an Event of Default.

“ Depository ” means, with respect to the Securities issued in the form of one or more Global Securities, The Depository Trust Company or another Person designated as Depository by the Company, which Person must be a clearing agency registered under the Exchange Act that is designated to act as Depository for such Securities as contemplated by Section 2.01.

“ Exchange Act ” means the U.S. Securities Exchange Act of 1934, as amended.

“ GAAP ” means generally accepted accounting principles set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as have been approved by a significant segment of the accounting profession, which are in effect on the date of this Indenture.

“ Global Security ” means a Security that evidences all or part of the Securities of any series that is registered to the Depository or its nominee and bears the legend set forth in Section 2.17 (or such legend as may be specified as contemplated by Section 2.01 for such Securities).

“ Government Obligations ” means any security issued or guaranteed as to full and timely payment of principal or interest by the United States, or by a person controlled or supervised by and acting as an instrumentality of the government of the United States pursuant to authority granted by the Congress of the United States or any certificate of deposit for any of the foregoing.

“ Holder ” means the Person in whose name a Security is registered in the security register.

“ Indebtedness ” means with respect to any Person at any date of determination (without duplication), indebtedness for borrowed money or indebtedness evidenced by bonds, notes, debentures or other similar instruments given to finance the acquisition of any businesses, properties or assets of any kind (including, without limitation, Capital Stock or other equity interests in any Person).

“ Indenture ” means this Indenture as amended, restated or supplemented from time to time, including, for all purposes of this instrument, the provisions of the Trust Indenture Act that are deemed to be a part of and govern this instrument and any supplemental indenture, respectively.

“ interest ” means, with respect to the Securities, interest on the Securities, and with respect to any Original Issue Discount Security, which by its terms bears interest only after its Maturity Date, means interest payable after the Maturity Date of such Original Issue Discount Security.

2

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

“ Issue Date ” means, with respect to Securities of any series, the date on which Securities of such series are initially issued.

“ Lien ” with respect to any property or assets, means any mortgage or deed of trust, pledge, hypothecation, assignment, deposit arrangement, security interest, lien, charge, easement (other than any easement not materially impairing usefulness or marketability), encumbrance, preference, priority or other security agreement or preferential arrangement of any kind or nature whatsoever on or with respect to such property or assets (including, without limitation, any conditional sale or other title retention agreement having substantially the same economic effect as any of the foregoing), but not including the interest of a lessor under a lease that is an operating lease under GAAP.

“ Maturity Date ” when used with respect to any Security, means the date on which the principal amount of such Security becomes due and payable as therein or herein provided.

“ Obligor ” means the Company.

“ Officers’ Certificate ” means a certificate signed by the Chairman of the Board, the Chief Executive Officer, the Chief Financial Officer, the President or a Vice President, and by the Treasurer, an Assistant Treasurer, the Controller, an Assistant Controller, the Secretary or an Assistant Secretary, of the Company, and delivered to the Trustee.

“ Opinion of Counsel ” means a written opinion of counsel, who may be an employee of or counsel for the Company, or other counsel who shall be acceptable to the Trustee.

“ 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 Date thereof pursuant to Section 6.02.

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

“ Physical Securities ” means certificated Securities in registered form, registered to a Person other than the Depository or its nominee, in substantially the form set forth in Exhibit A-1 or in such form as shall be established by or pursuant to a Board Resolution or in one or more indentures supplemental hereto.

“ Place of Payment ,” when used with respect to the Securities of such series, means the place or places where the principal of (and premium, if any) and interest on the Securities of such series are payable as specified as contemplated by Section 4.02.

“ Redemption Date ” when used with respect to any Security to be redeemed, means the date fixed for such redemption pursuant to the terms of this Indenture.

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

“ Responsible Officer ” shall mean, when used with respect to the Trustee, any officer within the corporate trust department of the Trustee, including any 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, and who shall have responsibility for the administration of this Indenture or any other officer of the Trustee to whom any corporate trust matter is referred because of his or her knowledge of and familiarity with the particular subject.

“ Securities ” has the meaning provided in the preamble of this Indenture.

3

“ Securities Act ” means the U.S. Securities Act of 1933, as amended.

“ Stated Maturity ” means (a) with respect to any Security, the date specified in such security as the fixed date on which the payment of principal of such security is due and payable, including pursuant to any mandatory redemption provision (but excluding any provision providing for the repurchase of such Security at the option of the Holder thereof upon the happening of any contingency beyond the control of the Company unless such contingency has occurred) and (b) with respect to any scheduled installment of principal of or interest on any Security, the date specified in such Security as the fixed date on which such installment is due and payable.

“ Subsidiary ” of a Person means, with respect to any Person, any corporation, association, partnership or other business entity of which at least a majority of the total voting power of the Capital Stock entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers or trustees thereof is at the time owned or controlled, directly or indirectly, by (1) such Person, (2) such Person and one or more Subsidiaries of such Person or (3) one or more Subsidiaries of such Person.

“ TIA ” means the Trust Indenture Act of 1939, as amended (15 U.S. Code §§ 77aaa77bbbb) as in effect on the date of this Indenture (except as provided in Section 8.03).

“ Trustee ” means the party named as such in this Indenture until a successor replaces it pursuant to this Indenture and thereafter means the successor.

SECTION 1.02. Other Definitions .

The definitions of the following terms may be found in the sections indicated as follows:

SECTION 1.03. Incorporation by Reference of Trust Indenture Act .

Whenever this Indenture refers to a provision of the TIA, the portion of such provision required to be incorporated herein in order for this Indenture to be qualified under the TIA is incorporated by reference in and made a part of this Indenture. The following TIA terms used in this Indenture have the following meanings:

“indenture securities” means the Securities.

“indenture securityholder” means a Holder.

4

“indenture to be qualified” means this Indenture.

“obligor on this indenture securities” means the Company or any other obligor on the Securities.

All other terms used in this Indenture that are defined by the TIA, defined in the TIA by reference to another statute or defined by Commission rule have the meanings therein assigned to them.

SECTION 1.04. Rules of Construction .

Unless the context otherwise requires:

(i) a term has the meaning assigned to it herein, whether defined expressly or by reference;

(ii) “or” is not exclusive;

(iii) words in the singular include the plural, and in the plural include the singular;

(iv) words used herein implying any gender shall apply to both genders;

(v) “herein,” “hereof” and other words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subsection;

(vi) an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP; and

(vii) “$,” “U.S. Dollars” and “United States Dollars” each refer to United States dollars, or such other money of the United States that at the time of payment is legal tender for payment of public and private debts.

ARTICLE II

THE SECURITIES

SECTION 2.01. Series of Securities; Amount Unlimited .

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 one or more Board Resolutions or pursuant to authority granted by one or more Board Resolutions and, subject to Sections 2.02 and 2.03, set forth in, or determined in the manner provided in, an Officers’ Certificate, and, in all cases, established in one or more indentures supplemental hereto, prior to the issuance of Securities of any series,

(1) the title of the Securities of the series (which shall distinguish the Securities of the series from Securities of any other series);

(2) any limit upon the aggregate principal amount of the Securities of the series which 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 the series pursuant to Sections 2.07, 2.08, 2.11, 3.07 or 8.05, and except for any Securities which, pursuant to Section 2.03, are deemed never to have been authenticated and delivered hereunder);

(3) the Person to whom any interest on a Security of the series shall be payable, if other than the Person in whose name that Security is registered at the close of business on the regular record date for such interest;

(4) the date or dates on which the principal of any Securities of the series is payable;

(5) the rate or rates at which any Securities of the series shall bear interest, if any, the date or dates from which any such interest shall accrue, the Interest Payment Dates on which any such interest shall be payable and the regular record date for any such interest payable on any Interest Payment Date;

(6) the place or places where the principal of and any premium and interest on any Securities of the series shall be payable;

5

(7) the period or periods within which, the price or prices at which and the terms and conditions upon which any Securities of the series may be redeemed, in whole or in part, at the option of the Company and, if other than by a Board Resolution, the manner in which any election by the Company to redeem the Securities shall be evidenced;

(8) the obligation, if any, of the Company to redeem or purchase any Securities of the series pursuant to any sinking fund or analogous provisions or at the option of the Holder thereof and the period or periods within which, the price or prices at which and the terms and conditions upon which any Securities of the series shall be redeemed or purchased, in whole or in part, pursuant to such obligation;

(9) if other than denominations of $2,000 and any integral multiples of $1,000 in excess thereof, the denominations in which any Securities of the series shall be issuable;

(10) if the amount of principal of or any premium or interest on any Securities of the series may be determined with reference to an index or pursuant to a formula, the manner in which such amounts shall be determined;

(11) if other than the currency of the United States of America, the currency, currencies or currency units in which the principal of or any premium or interest on any Securities of the series shall be payable and the manner of determining the equivalent thereof in the currency of the United States of America for any purpose;

(12) if the principal of or any premium or interest on any Securities of the series is to be payable, at the election of the Company or the Holder thereof, in one or more currencies or currency units other than that or those in which such Securities are stated to be payable, the currency, currencies or currency units in which the principal of or any premium or interest on such Securities as to which such election is made shall be payable, the periods within which and the terms and conditions upon which such election is to be made and the amount so payable (or the manner in which such amount shall be determined);

(13) if other than the entire principal amount thereof, the portion of the principal amount of any Securities of the series which shall be payable upon declaration of acceleration of the maturity of the principal amount thereof pursuant to Section 6.02;

(14) if the principal amount payable at the Stated Maturity of any Securities of the series will not be determinable as of any one or more dates prior to the Stated Maturity, the amount which shall be deemed to be the principal amount of such Securities as of any such date for any purpose thereunder or hereunder, including the principal amount thereof which shall be due and payable upon any date other than the Stated Maturity or which shall be deemed to be outstanding as of any date prior to the Stated Maturity (or, in any such case, the manner in which such amount deemed to be the principal amount shall be determined);

(15) if applicable, that any Securities of the series shall be issuable in whole or in part in the form of one or more Global Securities and, in such case, the respective Depositories for such Global Securities, the form of any legend or legends which shall be borne by any such Global Security in addition to or in lieu of that set forth in Section 2.17 and any circumstances in addition to or in lieu of those set forth in Section 2.16 in which any such Global Security may be exchanged in whole or in part for Securities registered, and any transfer of such Global Security in whole or in part may be registered, in the name or names of Persons other than the Depositary for such Global Security or a nominee thereof;

(16) any addition to or change in the Events of Default which applies to any Securities of the series and any change in the right of the Trustee or the requisite Holders of such Securities to declare the principal amount thereof due and payable pursuant to Section 6.02;

(17) any addition to or change in the covenants set forth in Article Four which applies to Securities of the series; and

(18) any other terms of the series (which terms shall not be inconsistent with the provisions of this Indenture, except as permitted by Section 8.01(xii)).

6

All Securities of any one series shall be substantially identical except as to denomination and except as may otherwise be provided in or pursuant to the Board Resolution referred to above and (subject to Section 2.03) set forth, or determined in the manner provided, in the Officers’ Certificate referred to above or in any such indenture supplemental hereto.

If any of the terms of the series are established by action taken pursuant to a Board Resolution, a copy of an appropriate record of such action shall be certified by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee at or prior to the delivery of the Officers’ Certificate setting forth the terms of the series.

The Securities shall be general unsecured senior obligations of the Company and will rank equally with all other unsecured senior indebtedness of the Company from time to time outstanding.

SECTION 2.02. Form .

The Securities and the Trustee’s certificate of authentication with respect thereto shall be substantially in the form set forth in Exhibit A-1, which is incorporated in and forms a part of this Indenture or such form established by one or more Board Resolutions adopted with respect of such series or established in one or more indentures supplemental hereto; in each case with such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Indenture, and may have such letters, numbers or other marks of identification and such legends or endorsements placed thereon as may be required to comply with the rules of any securities exchange or Depository therefor or as may, consistently herewith, be determined by the officers executing such Securities, as evidenced by their execution thereof. If the form of Securities of any series is established by action taken pursuant to a Board Resolution, a copy of an appropriate record of such action shall be certified by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee at or prior to the delivery of the Company Order contemplated by Section 2.03 for the authentication and delivery of such Securities.

The Securities shall be issued initially in the form of one or more permanent Global Securities in registered form and deposited with the Trustee, as custodian for the Depository. The aggregate principal amount of any Global Security may from time to time be increased or decreased by adjustments made on the records of the Trustee, as custodian for the Depository.

The Securities may have notations, legends or endorsements required by law, rule or usage to which the Company is subject.

The terms and provisions contained in the Securities shall constitute, and are expressly made, a part of this Indenture and, to the extent applicable, the Company and the Trustee, by their execution and delivery of this Indenture, expressly agree to such terms and provisions and agree to be bound thereby.

SECTION 2.03. Execution and Authentication .

The Securities shall be executed on behalf of the Company by its Chairman of the Board, Chief Executive Officer, Chief Financial Officer, President, Treasurer, Assistant Treasurer, Controller, Assistant Controller, Secretary, Assistant Secretary or any Vice President. The signature of any of these officers on the Securities may be manual or facsimile.

If a Person whose signature is on a Security occupied a particular office at the time of such execution but no longer holds that office at the time the Trustee authenticates the Security, the Security shall be valid nevertheless.

At any time and from time to time after the execution and delivery of this Indenture, the Company may deliver Securities of any series 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. 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 shall be fully protected in relying upon, an Opinion of Counsel stating,

7

(1) if the form of such Securities has been established by or pursuant to Board Resolution as permitted by Section 2.02, that such form has been established in conformity with the provisions of this Indenture;

(2) if the terms of such Securities have been established by or pursuant to Board Resolution as permitted by Section 2.01, that such terms have been established in conformity with the provisions of this Indenture; and

(3) that this Indenture constituted, and such Securities, when authenticated and delivered by the Trustee and issued by the Company in the manner and subject to any conditions specified in such Opinion of Counsel, will constitute, valid and legally binding obligations of the Company enforceable in accordance with their terms, subject to bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and similar laws of general applicability relating to or affecting creditors’ rights and to general equity principles.

If such form or terms have been so established, 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 or immunities under the Securities and this Indenture or otherwise in a manner which is not unsatisfactory to the Trustee.

Notwithstanding the provisions of Section 2.01 and of the preceding paragraph, if all Securities of any series are not to be originally issued at one time, unless otherwise requested by the Trustee, it shall not be necessary to deliver the Officers’ Certificate otherwise required pursuant to Section 2.01 or the Company Order and Opinion of Counsel otherwise required pursuant to such preceding paragraph at or prior to the authentication of each Security of such series if such documents are delivered at or prior to the authentication upon original issuance of the first Security of such series to be issued.

Each Security shall be dated the date of its authentication.

No Security shall be entitled to any benefit under this Indenture or be valid or obligatory for any purpose unless there appears on such Security a certificate of authentication substantially in the form provided for herein executed by the Trustee by manual signature, and such certificate upon any Security shall be conclusive evidence, and the only evidence, that such Security has been duly authenticated and delivered hereunder. 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 2.12, and shall provide with Trustee with an Officers’ Certificate to the effect that such Security has never been issued and 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.

The Securities of each series shall be issuable only in registered form without coupons and only in such denominations as shall be specified as contemplated by Section 2.01. In the absence of any such specified denomination with respect to the Securities of any series, the Securities of such series shall be issuable in denominations of $2,000 and any integral multiples of $1,000 in excess thereof.

SECTION 2.04. Registrar and Paying Agent .

The Company shall maintain an office or agency in a Place of Payment where Securities may be presented for registration of transfer or for exchange (the “ Registrar ”), and an office or agency where Securities may be presented for payment (the “ Paying Agent ”) and an office or agency where notices and demands to or upon the Company, if any, in respect of the Securities and this Indenture may be served. The Registrar shall keep a register of the Securities and of their transfer and exchange. The Company may have one or more additional Paying Agents. The term “Paying Agent” includes any additional Paying Agent.

The Company shall enter into an appropriate agency agreement, which shall incorporate the provisions of the TIA, with any Agent that is not a party to this Indenture. The agreement shall implement the provisions of this Indenture that relate to such Agent. The Company shall notify the Trustee of the name and address of any such Agent. If the Company fails to maintain a Registrar or Paying Agent, or fails to give the foregoing notice, the Trustee upon notice provided to it by the Company, shall act as such and shall be entitled to appropriate compensation in accordance with Section 7.07.

8

The Company initially appoints the Trustee as Registrar, Paying Agent and Agent for service of notices and demands in connection with the Securities and this Indenture and the Company may change the Registrar, Paying Agent and Agent without prior notice to the Holders. The Company or any of its Subsidiaries may act as Paying Agent.

The Company will be responsible for making calculations called for under the Securities, including but not limited to determination of Redemption Price, premium, if any, and any additional amounts or other amounts payable on the Securities. The Company will make the calculations in good faith and, absent manifest error, its calculations will be final and binding on the Holders. The Company will provide a schedule of its calculations to the Trustee when requested by the Trustee, and the Trustee is entitled to rely conclusively on the accuracy of the Company’s calculations without independent verification.

SECTION 2.05. Paying Agent To Hold Money in Trust .

Each Paying Agent shall hold in trust for the benefit of the Holders or the Trustee all money held by the Paying Agent for the payment of principal of or premium or interest on the Securities (whether such money has been paid to it by the Company or any other obligor on the Securities), and the Company and the Paying Agent shall notify the Trustee of any Default by the Company (or any other obligor on the Securities) in making any such payment. Money held in trust by the Paying Agent need not be segregated except as required by law and in no event shall the Paying Agent be liable for any interest on any money received by it hereunder; provided that if the Company or an Affiliate thereof acts as Paying Agent, it shall segregate the money held by it as Paying Agent and hold it as a separate trust fund. The Company at any time may require the Paying Agent to pay all money held by it to the Trustee and account for any funds disbursed and the Trustee may at any time during the continuance of any Event of Default specified in Section 6.01(1) or (2), upon written request to the Paying Agent, require the Paying Agent to pay forthwith all money so held by it to the Trustee and to account for any funds disbursed. Upon making such payment, the Paying Agent shall have no further liability for the money delivered to the Trustee.

SECTION 2.06. Holder Lists .

The Trustee shall preserve in as current a form as is reasonably practicable the most recent list available to it of the names and addresses of the Holders. If the Trustee is not the Registrar, the Company shall furnish to the Trustee at least five Business Days before each Interest Payment Date for Securities of any series, and at such other times as the Trustee may request in writing, a list in such form and as of such date as the Trustee may reasonably require of the names and addresses of the Holders of Securities of such series; provided that, as long as the Trustee is the Registrar, no such list need be furnished.

SECTION 2.07. Transfer and Exchange .

Subject to Section 2.16, when Securities of any series are presented to the Registrar with a request from the Holder of such Securities to register a transfer or to exchange them for an equal principal amount of Securities of such series of other authorized denominations, the Registrar shall register the transfer as requested. Every Security presented or surrendered for registration of transfer or exchange shall be duly endorsed or be accompanied by a written instrument of transfer in form satisfactory to the Company and the Registrar, duly executed by the Holder thereof or his attorneys duly authorized in writing. To permit registrations of transfers and exchanges, the Company shall issue and execute and the Trustee shall authenticate new Securities of the same series evidencing such transfer or exchange at the Registrar’s request. No service charge shall be made to the Holder for any registration of transfer or exchange. The Company may require from the Holder payment of a sum sufficient to cover any transfer taxes or other governmental charge that may be imposed in relation to a transfer exchange, but this provision shall not apply to any exchange pursuant to Section 2.11, 3.07 or 8.05 (in which events the Company shall be responsible for the payment of such taxes). If the transfer is requested in connection with a lost certificate, the Trustee shall be entitled to indemnity not unsatisfactory to the Trustee as a condition to making such transfer as provided in Section 2.08 hereof. The Registrar shall not be required to exchange or register a transfer of any Security for a period of 15 days immediately preceding the redemption of Securities of such series, except the unredeemed portion of any Security being redeemed in part.

9

Any Holder of a Global Security shall, by acceptance of such Global Security, agree that transfers of the beneficial interests in such Security may be effected only through a book entry system maintained by the Holder of such Security (or its agent), and that ownership of a beneficial interest in the Global Security shall be required to be reflected in a book entry.

Except as expressly provided herein, neither the Trustee nor the Registrar shall have any duty to monitor the Company’s compliance with or have any responsibility with respect to the Company’s compliance with any Federal or state securities laws.

The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Security (including any transfers between or among Agent Members or beneficial owners of interests in any Global Security) other than to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by the terms of, this Indenture, and to examine the same to determine compliance as to form with the express requirements hereof.

Neither the Trustee nor any Agent shall have any responsibility for any actions taken or not taken by the Depository.

SECTION 2.08. Replacement Securities .

If a mutilated Security is surrendered to the Registrar or the Trustee, or if the Holder of a Security claims that the Security has been lost, destroyed or wrongfully taken, the Company shall issue and the Trustee shall authenticate a replacement Security of the same series if the Holder of such Security furnishes to the Company and the Trustee evidence satisfactory to them of the ownership and the destruction, loss or theft of such Security and if the requirements of Section 8-405 of the New York Uniform Commercial Code as in effect on the date of this Indenture are met. If required by the Trustee or the Company, an indemnity bond shall be posted, sufficient in the judgment of all to protect the Company, the Trustee or any Paying Agent from any loss that any of them may suffer if such Security is replaced. The Company may charge such Holder for the Company’s reasonable out-of-pocket expenses in replacing such Security and the Trustee may charge the Company for the Trustee’s expenses (including, without limitation, attorneys’ fees and disbursements) in replacing such Security. Every replacement Security shall constitute a contractual obligation of the Company.

SECTION 2.09. Outstanding Securities .

The Securities outstanding at any time are all Securities that have been authenticated by the Trustee except for (a) those canceled by it, (b) those delivered to it for cancellation, (c) to the extent set forth in Sections 9.01 and 9.02, on or after the date on which the conditions set forth in Section 9.01 or 9.02 have been satisfied, those Securities theretofore authenticated and delivered by the Trustee hereunder and (d) those described in this Section 2.09 as not outstanding. Subject to Section 2.10, a Security does not cease to be outstanding because the Company or one of its Affiliates holds the Security.

If a Security is replaced pursuant to Section 2.08, it ceases to be outstanding unless the Trustee receives proof satisfactory to it that the replaced Security is held by a bona fide purchaser in whose hands such Security is a legal, valid and binding obligation of the Company.

If the Paying Agent holds, in its capacity as such, on any Maturity Date, money sufficient to pay all accrued interest and principal with respect to the Securities payable on that date and is not prohibited from paying such money to the Holders thereof pursuant to the terms of this Indenture, then on and after that date such Securities cease to be outstanding and interest on them ceases to accrue.

10

SECTION 2.10. Treasury Securities .

In determining whether the Holders of the required principal amount of Securities of any series have concurred in any declaration of acceleration or Notice of Default or direction, waiver or consent or any amendment, modification or other change to this Indenture, Securities of such series owned by the Company or any other Affiliate of the Company shall be disregarded as though they were not outstanding, except that for the purposes of determining whether the Trustee shall be protected in relying on any such direction, waiver or consent or any amendment, modification or other change to this Indenture, only Securities of such series as to which a Responsible Officer of the Trustee has actually received an Officers’ Certificate stating that such Securities are so owned shall be so disregarded. Securities of such series so owned which have been pledged in good faith shall not be disregarded if the pledgee established 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 any other obligor on such Securities or any of their respective Affiliates.

SECTION 2.11. Temporary Securities .

Until definitive Securities of any series are prepared and ready for delivery, the Company may prepare and the Trustee shall authenticate temporary Securities of such series. Temporary Securities shall be substantially in the form of definitive Securities of the same series but may have variations that the Company considers appropriate for temporary Securities. Without unreasonable delay, the Company shall prepare and the Trustee shall authenticate definitive Securities of any series in exchange for temporary Securities of such series. Until such exchange, temporary Securities shall be entitled to the same rights, benefits and privileges as definitive Securities of such series.

SECTION 2.12. Cancellation .

The Company at any time may deliver Securities to the Trustee for cancellation. The Registrar and the Paying Agent shall forward to the Trustee any Securities surrendered to them for registration of transfer, exchange or payment. The Trustee shall cancel all Securities surrendered for registration of transfer, exchange, payment, replacement or cancellation, and shall deliver a certificate of such cancellation to the Company upon request therefor. The Company may not reissue or resell, or issue new Securities of any series to replace Securities of such series that the Company has redeemed or paid, or that have been delivered to the Trustee for cancellation. All cancelled Securities held by the Trustee shall be retained and disposed of by the Trustee in accordance with its customary procedures and applicable law.

SECTION 2.13. Defaulted Interest .

If the Company defaults on a payment of interest on any series of Securities, it shall pay the defaulted interest, plus (to the extent permitted by law) any interest payable on the defaulted interest (including post-petition interest in any proceeding under any Bankruptcy Law), in accordance with the terms hereof, to the Persons who are Holders of such series of Securities on a subsequent special record date, which date shall be at least five Business Days prior to the payment date. The Company shall fix such special record date and payment date in a manner satisfactory to the Trustee. At least 10 days before such special record date, the Company shall mail to each Holder of such series of Securities a notice that states the special record date, the payment date and the amount of defaulted interest, and interest payable on defaulted interest, if any, to be paid. The Company may make payment of any defaulted interest in any other lawful manner not inconsistent with the requirements (if applicable) of any securities exchange on which the Securities of such series may be listed and, upon such notice as may be required by such exchange, if, after written notice given by the Company to the Trustee of the proposed payment pursuant to this sentence and such other evidence as the Trustee shall require, such manner of payment shall be deemed practicable by the Trustee.

SECTION 2.14. CUSIP Number .

The Company in issuing the Securities of any series may use a “CUSIP” number, and if so, such CUSIP number shall be included in notices, including notices of redemption or exchange, as a convenience to Holders of such series; provided that any such notice may state that no representation is made as to the correctness or accuracy of the CUSIP number printed in the notice or on the Securities, and

11

that reliance may be placed only on the other identification numbers printed on the Securities. The Company shall promptly notify the Trustee of any such CUSIP number used by the Company in connection with the issuance of the Securities and of any change in the CUSIP number; provided , however , that the Trustee shall have no obligation to independently verify the accuracy of any CUSIP number.

SECTION 2.15. Deposit of Moneys .

Prior to 11:00 a.m., New York City time, on each Interest Payment Date and Maturity Date, the Company shall have deposited with the Paying Agent in immediately available funds money sufficient to make cash payments, if any, due on such Interest Payment Date or Maturity Date, as the case may be, in a timely manner which permits the Trustee to remit payment to the Holders on such Interest Payment Date or Maturity Date, as the case may be. The principal and interest on Global Securities shall be payable to the Depository or its nominee, as the case may be, as the sole registered owner and the sole Holder of the Global Securities represented thereby in accordance with Applicable Procedures. The principal and interest on Physical Securities shall be payable as provided in the terms of the Securities.

SECTION 2.16. Book-Entry Provisions for Global Securities .

(a) Each Global Security authenticated under this Indenture shall be registered in the name of the Depository designated for such Global Security or a nominee thereof and delivered to such Depository or a nominee thereof or custodian therefor, and each such Global Security shall constitute a single Security for all purposes of this Indenture.

(b) Members of, or direct or indirect participants in, the Depository (“ Agent Members ”) shall have no rights under this Indenture with respect to any Global Security held on their behalf by the Depository, or the Trustee as its custodian, or under the Global Security, and the Depository may be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner of the Global Security 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 (which may be in electronic form) furnished by the Depository or impair, as between the Depository and its Agent Members, the operation of customary practices governing the exercise of the rights of a Holder of any Security.

(c) Transfers of Global Securities shall be limited to transfer in whole, but not in part, to the Depository, its successors or their respective nominees. Interests of beneficial owners in the Global Securities of any series may be transferred or exchanged for Physical Securities of such series in accordance with Applicable Procedures of the Depository. In addition, a Global Security shall be exchangeable for Physical Securities if (i) the Depository (x) notifies the Company that it is unwilling or unable to continue as depository for such Global Security or (y) has ceased to be a clearing agency registered under the Exchange Act, and, with respect to (x) or (y), the Company thereupon fails to appoint a successor depository within 90 days of such notice or cessation, (ii) the Company, at its option, notifies the Trustee in writing that it elects to cause the issuance of such Physical Securities in exchange for any or all of the Securities of any series represented by the Global Securities of such series or (iii) there shall have occurred and be continuing an Event of Default with respect to the Securities of any series and the Depository requests Physical Securities. In all cases, Physical Securities delivered in exchange for any Global Security or beneficial interests therein shall be registered in the names, and issued in any approved denominations, requested by or on behalf of the Depository (in accordance with Applicable Procedures).

(d) In connection with any transfer or exchange of a portion of the beneficial interest in any Global Security to beneficial owners pursuant to paragraph (b), the Registrar shall (if one or more Physical Securities are to be issued) reflect on its books and records the date and a decrease in the principal amount of the Global Security of such series in an amount equal to the principal amount of the beneficial interest in the Global Security of such series to be transferred, and the Company shall execute, and the Trustee shall upon receipt of a written order from the Company authenticate and make available for delivery, one or more Physical Securities of like tenor and amount.

(e) In connection with the transfer of Global Securities of any series as an entirety to beneficial owners pursuant to paragraph (b), the Global Securities of such series shall be deemed to be surrendered to

12

the Trustee for cancellation, and the Company shall execute, and the Trustee shall authenticate and deliver, to each beneficial owner identified by the Depository in writing in exchange for its beneficial interest in the Global Securities of such series, an equal aggregate principal amount of Physical Securities of authorized denominations.

(f) Any beneficial interest in one of the Global Securities of any series that is transferred to a Person who takes delivery in the form of an interest in another Global Security of such series shall, upon transfer, cease to be an interest in such Global Security and become an interest in such other Global Security and, accordingly, shall thereafter be subject to all transfer restrictions and other Applicable Procedures for as long as it remains such an interest.

(g) The Holder of any Global Security 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 this Indenture or the Securities.

(h) None of the Company, the Trustee, any Paying Agent or any Registrar will have any responsibility or liability for any aspect of Depository records relating to, or payments made on account of, beneficial ownership interests in a Global Security or for maintaining, supervising or reviewing any Depository records relating to such beneficial ownership interests, or for transfers of beneficial interests in the Securities or any transactions between the Depositary and beneficial owners.

SECTION 2.17. Legend for Global Security .

Unless otherwise specified as provided in Section 2.01 for the Securities evidenced thereby, every Global Security authenticated and delivered hereunder shall bear a legend in substantially the following form:

This Security is a Global Security within the meaning of the Indenture hereinafter referred to and is registered in the name of a Depository or a nominee thereof. This Security may not be exchanged in whole or in part for a Security registered, and no transfer of this Security in whole or in part may be registered, in the name of any Person other than such Depository or a nominee thereof, except in the limited circumstances described in the Indenture.

SECTION 2.18. Computation of Interest .

Except as otherwise specified as contemplated by Section 2.01, interest on the Securities shall be computed on the basis of a 360-day year of twelve 30-day months.

SECTION 2.19. Calculation of Original Issue Discount .

Except as the Company and the Trustee may otherwise agree, the Company shall file with the Trustee promptly at the end of each calendar year for which reporting on Form 1099 OID is required (i) a written notice specifying the amount of original issue discount (including daily rates and accrual periods) accrued on outstanding series of Securities as of the end of such year and (ii) such other specific information relating to such original issue discount as may then be relevant under the Internal Revenue Code of 1986, as amended from time to time.

SECTION 2.20. Record Dates .

(a) The Company may set any day as a record date for the purpose of determining the Holders of outstanding Securities of any series entitled to give, make or take any request, demand, authorization, direction, notice, consent, waiver or other action provided or permitted by this Indenture to be given, made or taken by Holders of Securities of such series, provided that the Company may not set a record date for, and the provisions of this paragraph shall not apply with respect to, the giving or making of any notice, declaration, request or direction referred to in the next paragraph. If any record date is set pursuant to this paragraph, the Holders of outstanding Securities of the relevant series on such record date, and no other Holders, shall be entitled to take the relevant action, whether or not such Holders remain Holders after such record date; provided that no such action shall be effective hereunder unless taken on or prior to the applicable Expiration Date by Holders of the requisite principal amount of outstanding Securities of such

13

series on such record date. Nothing in this paragraph shall be construed to prevent the Company from setting a new record date for any action for which a record date has previously been set pursuant to this paragraph (whereupon the record date previously set shall automatically and with no action by any Person be cancelled and of no effect), and nothing in this paragraph shall be construed to render ineffective any action taken by Holders of the requisite principal amount of outstanding Securities of the relevant series on the date such action is taken. Promptly after any record date is set pursuant to this paragraph, the Company, at its own expense, shall cause notice of such record date, the proposed action by Holders and the applicable Expiration Date to be given to the Trustee in writing and to each Holder of Securities of the relevant series in the manner set forth in Section 7.06.

(b) The Trustee may set any day as a record date for the purpose of determining the Holders of outstanding Securities of any series entitled to join in the giving or making of (i) any Notice of Default, (ii) any declaration of acceleration referred to in Section 6.02, (iii) any request to institute proceedings referred to in Section 6.06(2) or (iv) any direction referred to in Section 6.05, in each case with respect to Securities of such series. If any record date is set pursuant to this paragraph, the Holders of outstanding Securities of such series on such record date, and no other Holders, shall be entitled to join in such notice, declaration, request or direction, whether or not such Holders remain Holders after such record date; provided that no such action shall be effective hereunder unless taken on or prior to the applicable Expiration Date by Holders of the requisite principal amount of outstanding Securities of such series on such record date. Nothing in this paragraph shall be construed to prevent the Trustee from setting a new record date for any action for which a record date has previously been set pursuant to this paragraph (whereupon the record date previously set shall automatically and with no action by any Person be cancelled and of no effect), and nothing in this paragraph shall be construed to render ineffective any action taken by Holders of the requisite principal amount of outstanding Securities of the relevant series on the date such action is taken. Promptly after any record date is set pursuant to this paragraph, the Trustee, at the Company’s expense, shall cause notice of such record date, the proposed action by Holders and the applicable Expiration Date to be given to the Company in writing and to each Holder of Securities of the relevant series.

(c) With respect to any record date set pursuant to this Section, the party hereto which sets such record dates may designate any day as the “Expiration Date” and from time to time may change the Expiration Date to any earlier or later day; provided that no such change shall be effective unless notice of the proposed new Expiration Date is given to the other party hereto in writing, and to each Holder of Securities of the relevant series, on or prior to the existing Expiration Date. If an Expiration Date is not designated with respect to any record date set pursuant to this Section, the party hereto which set such record date shall be deemed to have initially designated the 180th day after such record date as the Expiration Date with respect thereto, subject to its right to change the Expiration Date as provided in this paragraph. Notwithstanding the foregoing, no Expiration Date shall be later than the 180th day after the applicable record date.

(d) Without limiting the foregoing, a Holder entitled hereunder to take any action hereunder with regard to any particular Security may do so with regard to all or any part of the principal amount of such Security or by one or more duly appointed agents each of which may do so pursuant to such appointment with regard to all or any part of such principal amount.

ARTICLE III

REDEMPTION

SECTION 3.01. 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 2.01 for such Securities) in accordance with this Article.

14

SECTION 3.02. Election To Redeem; Notices to Trustee .

If the Company elects to redeem the Securities of any series, the Company shall notify the Trustee in writing at least 45 days prior to the Redemption Date (unless a shorter period is acceptable to the Trustee) of the Redemption Date, the principal amount of such Securities to be redeemed and the calculation of the Redemption Price (or manner thereof if not then capable of calculation), and deliver to the Trustee, no later than two Business Days prior to the Redemption Date, an Officers’ Certificate and if the Trustee shall request, such other documents or opinions stating that such redemption will comply with the conditions contained herein and in the Securities of such series, as appropriate. Notice given to the Trustee pursuant to this Section 3.02 may, at the Company’s discretion, be subject to the satisfaction of one or more conditions precedent, and the calculation of the Redemption Price if not previously provided.

SECTION 3.03. Selection by Trustee of Securities To Be Redeemed .

If less than all the Securities of any series are to be redeemed, and the Securities are Global Securities, the Securities to be redeemed will be selected by Applicable Procedures of the Depository. If the Securities to be redeemed are Physical Securities, the Trustee shall select the Securities to be redeemed on a pro rata basis or on as nearly a pro rata basis as is practicable. The Trustee shall promptly notify the Company of the Securities selected for redemption and, in the case of any Securities selected for partial redemption, the principal amount thereof to be redeemed. The Trustee may select for redemption portions of the principal of the Securities that have denominations larger than $2,000. Securities and portions thereof the Trustee selects shall be redeemed in amounts of $2,000 or whole multiples of $1,000 equal to or greater than $2,000. For all purposes of this Indenture unless the context otherwise requires, provisions of this Indenture that apply to Securities called for redemption also apply to portions of Securities called for redemption.

SECTION 3.04. 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 Securities to be redeemed at his or her last address as the same appears on the registry books maintained by the Registrar pursuant to Section 2.04.

The notice shall identify the Securities to be redeemed (including the CUSIP numbers thereof) and shall state:

(i) the Redemption Date;

(ii) the Redemption Price (or manner of calculation if not then known);

(iii) if fewer than all outstanding Securities of any series are to be redeemed, the portion of the principal amount of such Securities to be redeemed and that, after the Redemption Date and upon surrender of such Securities, a new Security or Securities of such series in principal amount equal to the unredeemed portion will be issued;

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

(v) that Securities 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 Securities called for redemption ceases to accrue on and after the Redemption Date;

(vii) if such notice is conditioned upon the occurrence of one or more conditions precedent, the nature of such conditions precedent; and

(viii) the aggregate series and the principal amount of Securities of each such series that are being redeemed.

At the Company’s written request made at least five Business Days prior to the date on which notice is to be given, the Trustee shall give the notice of redemption in the Company’s name and at the Company’s sole expense. If any notice of redemption is conditioned upon the occurrence of one or more

15

conditions precedent, such notice of redemption shall state that such redemption may not occur and such notice may be rescinded in the event that any such condition precedent shall not have occurred as stated in such notice of redemption. The Company will provide prompt written notice to the Trustee rescinding such redemption in the event that any such condition precedent shall not have occurred, and such redemption and notice of redemption shall be rescinded and of no force or effect. Upon receipt of such notice from the Company rescinding such redemption, the Trustee will promptly send a copy of such notice to the holders of the Securities to be redeemed in the same manner in which the notice of redemption was given.

SECTION 3.05. Effect of Notice of Redemption .

Once the notice of redemption described in Section 3.04 is mailed, unless conditioned upon one or more conditions as provided in Section 3.04 (vii) hereof, Securities called for redemption become due and payable on the Redemption Date and at the Redemption Price, including any premium, plus interest accrued to the Redemption Date. Upon surrender to the Paying Agent, such Securities 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 Securities registered on the relevant record date; and provided , further , that if a Redemption Date is a Legal Holiday, payment shall be made on the next succeeding Business Day and no interest shall accrue for the period from such Redemption Date to such succeeding Business Day. Such notice, if mailed in the manner provided in Section 3.03, shall be conclusively presumed to have been given whether or not the Holder receives such notice.

SECTION 3.06. Deposit of Redemption Price .

On or prior to 11:00 A.M., New York City time, on each Redemption Date, the Company shall deposit with the Paying Agent in immediately available funds money sufficient to pay the Redemption Price of, including premium, if any, and accrued interest on all Securities to be redeemed on that date other than Securities or portions thereof called for redemption on that date which have been delivered by the Company to the Trustee for cancellation.

On and after any Redemption Date, if money sufficient to pay the Redemption Price of, including premium, if any, and accrued interest on Securities called for redemption shall have been made available in accordance with the immediately preceding paragraph, the Securities called for redemption will cease to accrue interest and the only right of the Holders of such Securities will be to receive payment of the Redemption Price of and, subject to the first proviso in Section 3.05, accrued and unpaid interest on such Securities to the Redemption Date. If any Security 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 such Security and any interest not paid on such unpaid principal, in each case at the rate and in the manner provided in such Securities.

SECTION 3.07. Securities Redeemed in Part .

Upon surrender of a Security that is redeemed in part, the Company shall execute and the Trustee shall authenticate for the Holder thereof a new Security of such series equal in principal amount to the unredeemed portion of the original Security in the name of the Holder upon cancellation of the original Security surrendered, except that if a Global Security is so redeemed, the Schedule of Increases or Decreases with respect to such Global Security shall be adjusted to reflect such redemption.

SECTION 3.08. Mandatory Redemption .

The Company is not required to make mandatory redemption or sinking fund payments with respect to the Securities of any series, unless otherwise specified in accordance with Section 2.01 when establishing the terms of such series of Securities.

16

ARTICLE IV

COVENANTS

SECTION 4.01. Payment of Principal, Premium and Interest .

The Company covenants and agrees that it will duly and punctually pay the principal of (and premium, if any) and interest on the Securities in accordance with the terms of the Securities and this Indenture.

SECTION 4.02. Maintenance of Office or Agency .

The Company will maintain in each Place of Payment for any series of Securities an office or agency where Securities of such series may be presented or surrendered for payment, where Securities of such series may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company in respect of the Securities of such 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 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, and the Company hereby appoints the Trustee as its agent to receive all such presentations, surrenders, notices and demands.

The Company may also from time to time designate one or more other offices or agencies where the Securities of any one or more series may be presented or surrendered for any or all 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 each Place of Payment 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.

SECTION 4.03. Corporate Existence .

Subject to Article Five, the Company will do or cause to be done all things necessary to preserve and keep in full force and effect its existence as a corporation.

SECTION 4.04. 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 the Securities of any series, it will, on or before each due date of the principal of (and premium, if any) or interest on any of the Securities of such series, segregate and hold in trust for the benefit of the Persons entitled thereto a sum sufficient to pay the principal (and premium, if any) or interest 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 of its action or failure so to act.

Whenever the Company shall have a Paying Agent for the Securities of any series, it will, prior to 11:00 a.m., New York City time, on each due date of the principal of (and premium, if any) or interest on the Securities of such series, deposit with the Paying Agent a sum sufficient to pay the principal (and premium, if any) or interest so becoming due, such sum to be held in trust for the benefit of the Persons entitled to such principal, premium or interest, and (unless such Paying Agent is the Trustee) the Company will promptly notify the Trustee of its action or failure so to act.

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

(1) hold all sums held by it for the payment of the principal of (and premium, if any) or interest on the Securities of any series 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;

17

(2) give the Trustee notice of any Default by the Company in the making of any payment of principal (and premium, if any) or interest on the Securities of any series; 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 the 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 the Paying Agent to pay, to the Trustee all sums held in trust by the Company or the 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 the Paying Agent; and, upon such payment by the Paying Agent to the Trustee, the Paying Agent shall be released from all further liability with respect to such money.

SECTION 4.05. Maintenance of Properties . The Company will cause all of its properties used or useful in the conduct of its business or the business of any Subsidiary to be maintained and kept in good condition, repair and working order and supplied with all necessary equipment and will cause to be made all necessary repairs, renewals, replacements, betterments and improvements thereof, all as in the judgment of the Company may be necessary so that the business carried on in connection therewith may be properly and advantageously conducted at all times; provided, however, that nothing in this Section shall prevent the Company or any Subsidiary from selling or otherwise disposing of for value its properties in the ordinary course of its business.

SECTION 4.06. Insurance . The Company will, and will cause each of its Subsidiaries to, keep all of its insurable properties insured against loss or damage at least equal to their then full insurable value with financially sound and reputable insurance companies.

SECTION 4.07. Payment of Taxes and Other Claims . The Company will pay or discharge or cause to be paid or discharged, before the same shall become delinquent, (1) all taxes, assessments and governmental charges levied or imposed upon it or any Subsidiary or upon the income, profits or property of the Company or any Subsidiary, and (2) all lawful claims for labor, materials and supplies which, if unpaid, might by law become a Lien upon the property of the Company or any Subsidiary; provided, however, that the Company shall not be required to pay or discharge or cause to be paid or discharged any such tax, assessment, charge or claim whose amount, applicability or validity is being contested in good faith by appropriate proceedings.

SECTION 4.08. 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. If the Company is not permitted to file the Financial Statements with the Commission, the Company will, 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. Delivery of such reports, information and documents to the Trustee hereunder 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 or certificates delivered pursuant to Section 4.09).

18

SECTION 4.09. Statement by Officer as to Default .

The Company will deliver to the Trustee, within 120 days after the end of each fiscal year of the Company ending after the date hereof, a certificate signed by its principal executive officer, its principal financial officer or its principal accounting officer (which need not comply with Section 10.05), stating whether or not to the best knowledge of the signer thereof the Company is in Default in the performance and observance of any covenant, agreement or condition contained in this Indenture, and if the Company shall be in Default, specifying all such Defaults and the nature and status thereof of which such officer may have knowledge.

ARTICLE V

SUCCESSOR CORPORATION

SECTION 5.01. Consolidation, Merger and Sale of Assets .

The Company may: (1) consolidate or merge with or into another Person; or (2) sell, assign, transfer, convey or otherwise dispose of all or substantially all of the Company’s properties or assets and Subsidiaries taken as a whole, in one or more related transactions, to another Person; if:

(1) either: (a) the Company is the surviving corporation; or (b) the Person formed by or surviving any such consolidation or merger (if other than the Company) or to which such sale, assignment, transfer, conveyance or other disposition has been made is a corporation organized or existing under the laws of the United States, any state of the United States or the District of Columbia (any such Person, the “ Successor Company ”);

(2) the Successor Company assumes all the obligations of the Company under the Securities and this Indenture pursuant to agreements not unsatisfactory to the Trustee; and

(3) immediately after such transaction no Default exists.

The Successor Company will be the successor to the Company and shall succeed to, and be substituted for, and may exercise every right and power of, the Company under this Indenture, and the predecessor company shall be released from its obligations with respect to the Securities, including with respect to its obligation to pay the principal of and interest on the Securities. The Company shall deliver to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that such consolidation, merger, sale, conveyance, transfer or lease and, if a supplemental indenture is required in connection with such transaction, such supplemental indenture comply with this Article and that all conditions precedent herein provided for relating to such transaction have been complied with.

ARTICLE VI

DEFAULTS AND REMEDIES

SECTION 6.01. Events of Default .

The following events shall be “ Events of Default ” with respect to Securities of any series:

(1) a failure to pay interest upon any Security of such series that continues for a period of 30 days after payment is due;

(2) a failure to pay the principal or premium, if any, on any Security of such series when due upon Stated Maturity, by declaration, redemption or otherwise;

(3) a failure to perform any of the Company’s other covenants or agreements contained in this Indenture (other than a covenant or warranty a Default in whose performance or whose breach is elsewhere in this Section specifically dealt with or which has expressly been included in this Indenture solely for the benefit of a series of Securities other than such series) applicable to the Securities of any series, for a period of 60 days after written notice to the Company by the Trustee or to the Company and the Trustee from the Holders of at least 25% of the principal amount of the Securities of such series then outstanding specifying such Default or breach and requiring it to be remedied and stating that such notice is a “ Notice of Default ” hereunder;

19

(4) the Company pursuant to or within the meaning of any Bankruptcy Law:

(A) commences a voluntary insolvency proceeding;

(B) consents to the entry of an order for relief against it in an involuntary insolvency proceeding or consents to its dissolution or winding-up;

(C) consents to the appointment of a Custodian of it or for any substantial part of its property; or

(D) makes a general assignment for the benefit of its creditors; or takes any comparable action under any foreign laws relating to insolvency;

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

(A) is for relief against the Company in an involuntary insolvency proceeding;

(B) appoints a Custodian of the Company or for any substantial part of its property;

(C) orders the winding-up, liquidation or dissolution of the Company;

(D) orders the presentation of any plan or arrangement, compromise or reorganization of the Company; or

(E) grants any similar relief under any foreign laws; and in each such case the order or decree remains unstayed and in effect for 90 days; and

(6) the failure to deposit any sinking, purchase or analogous fund payment in respect of any Securities of such series that continues for a period of 30 days after payment is due.

The foregoing will constitute Events of Default whatever the reason for any such Event of Default and whether it is voluntary or involuntary or is 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.

SECTION 6.02. Acceleration of Maturity; Rescission .

If an Event of Default with respect to the Securities of any series (other than an Event of Default specified in Sections 6.01(4) and 6.01(5)) shall have occurred and be continuing, the Trustee or the registered Holders of not less than 25% in aggregate principal amount of the Securities of such series then outstanding may declare to be immediately due and payable the principal amount (or, if the Securities of that series are Original Issue Discount Securities, such portion of the principal amount as may be specified in the terms of that series) of all such Securities then outstanding by written notice to the Company and the Trustee, plus accrued but unpaid interest to the date of acceleration. In case an Event of Default specified in Sections 6.01(4) and 6.01(5) shall occur, such amount with respect to all such Securities shall be automatically due and payable immediately without any declaration or other act on the part of the Trustee or the Holders of such Securities. After any such acceleration, but before a judgment or decree based on acceleration is obtained by the Trustee, the registered Holders of a majority in aggregate principal amount of such Securities then outstanding may rescind and annul such acceleration (i) if the rescission would not conflict with any judgment or decree, (ii) if all existing Events of Default have been cured or waived except nonpayment of principal, premium or interest that has become due solely because of the acceleration, (iii) to the extent the payment of such interest is permitted under applicable law, interest on overdue installments of interest and overdue principal, which has become due otherwise than by such declaration of acceleration, has been paid, (iv) if the Company has paid the Trustee its reasonable compensation and reimbursed the Trustee for its expenses, disbursements and advances and all other amounts due to the Trustee under Section 7.07 and (v) in the event of the cure or waiver of an Event of Default of the type described in either Section 6.01(4) or (5), the Trustee shall have received an Officers’ Certificate and such other documentation as the Trustee may request, to the effect that such Event of Default has been cured or waived. No such rescission shall affect any subsequent Default or impair any right consequent thereto.

20

Subject to Section 7.01, in case an Event of Default shall occur and be continuing with respect to any series of Securities, the Trustee shall be under no obligation to exercise any of its rights or powers under this Indenture at the request or direction of any of the Holders of such series of Securities, unless such Holders shall have offered to the Trustee indemnity satisfactory to the Trustee. Subject to Section 7.07, the Holders of a majority in aggregate principal amount of such series of Securities then outstanding will 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 with respect to such Securities.

SECTION 6.03. Other Remedies .

If an Event of Default occurs and is continuing with respect to any series of Securities, the Trustee may pursue any available remedy by proceeding at law or in equity to collect the payment of principal of, or premium, if any, and interest on the Securities of such series or to enforce the performance of any provision of the Securities of such series or this Indenture and may take any necessary action requested of it as Trustee 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 Securities of such series or does not produce any of them in the proceeding. Any such proceeding instituted by the Trustee may be brought in its own name and as trustee of an express trust, and any recovery of judgment shall, after provision for the payment of the reasonable compensation, expenses, disbursements of the Trustee and its counsel, be for the ratable benefit of the Holders of the Securities of such series in respect of which such judgment has been recovered. A delay or omission by the Trustee or any Holder 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, to the extent permitted by law. Any costs associated with actions taken by the Trustee under this Section 6.03 shall be reimbursed to the Trustee by the Company.

SECTION 6.04. Waiver of Past Defaults and Events of Default .

The Holders of a majority in aggregate principal amount of the then outstanding Securities of such series may on behalf of the Holders of all the affected Securities waive any past Default or Event of Default with respect to such Securities and its consequences by providing written notice thereof to the Company and the Trustee; provided the Securities of any series are not then due and payable by reason of a declaration of acceleration, except a Default or Event of Default (1) in the payment of interest on or the principal of any Security or (2) in respect of a covenant or provision hereof which under this Indenture cannot be modified or amended without the consent of the Holder of each outstanding Security affected. In the case of any such waiver, the Company, the Trustee and the Holders of the Securities will be restored to their former positions and rights under this Indenture, respectively; provided that no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereto.

SECTION 6.05. Control by Majority .

The Holders of at least a majority in aggregate principal amount of the outstanding Securities of any series may 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. However, the Trustee may refuse to follow any direction for which it has not received indemnity satisfactory to the Trustee that conflicts with law or this Indenture, that may involve the Trustee in personal liability, or that the Trustee determines in good faith may be unduly prejudicial to the rights of Holders of the affected Securities not joining in the giving of such direction (it being understood that the Trustee shall have no duty to ascertain whether or not such actions or forbearances are unduly prejudicial to such Holders), and may take any other action it deems proper that is not inconsistent with any such direction received from Holders of such Securities.

21

SECTION 6.06. Limitation on Suits .

No Holder of any Security of any series will have any right to institute any proceeding with respect to this Indenture, or for the appointment of a receiver or trustee, or for any remedy hereunder, unless:

(1) the Holder gives the Trustee written notice of a continuing Event of Default with respect to the Securities of such series,

(2) the Holders of at least 25% in aggregate principal amount of outstanding Securities of such series of the relevant series make a written request to the Trustee to institute such proceeding or pursue such remedy as trustee,

(3) such Holder or Holders offer the Trustee indemnity satisfactory to the Trustee against any costs, liability or expense,

(4) the Trustee does not comply with the request within 60 days after receipt of the request and the offer of indemnity, and

(5) during such 60-day period the Holders of at least a majority in aggregate principal amount of the outstanding Securities of such series of the relevant series do not give the Trustee a direction that is inconsistent with the request.

However, such limitations do not apply to a suit instituted by a Holder of any Security for enforcement of payment of the principal of, and premium, if any, or interest on, such Security on or after the respective due date expressed in such Security.

SECTION 6.07. No Personal Liability of Directors, Officers, Employees and Stockholders .

No director, manager, trustee, officer, employee, member, partner or stockholder of the Company shall have any liability for any obligations of the Company under the Securities, or this Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Securities by accepting a Security waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Securities. This waiver may not be effective to waive liabilities under the U.S. federal securities laws.

SECTION 6.08. Rights of Holders To Receive Payment .

Notwithstanding any other provision of this Indenture, the right of any Holder of a Security to receive payment of the principal of or premium, if any, or interest, if any, on such Security or to bring suit for the enforcement of any such payment, on or after the due date expressed in the Securities shall not be impaired or affected without the consent of the Holder.

SECTION 6.09. Collection Suit by Trustee .

If an Event of Default with respect to Securities of any series in payment of principal, premium or interest specified in Section 6.01(1) or (2) 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 other obligor on the Securities of such series) for the whole amount of unpaid principal and accrued interest remaining unpaid.

SECTION 6.10. 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 7.07) and the Holders allowed in any judicial proceedings relative to the Company (or any other obligor upon the Securities), its creditors or its property and, unless prohibited by law, 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 Holder to

22

make such payments to the Trustee, and in the event that the Trustee shall consent 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, its agents and counsel, and any other amounts due the Trustee under Section 7.07.

Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan or reorganization, arrangement, adjustment or composition affecting the Securities or the rights of any Holder thereof, or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceedings. All rights of action and claims under this Indenture or the Securities may be prosecuted and enforced by the Trustee without the possession of any of the Securities 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 in respect of which such judgment has been recovered. The Trustee may, on behalf of the Holders, vote for the election of a trustee in bankruptcy or similar official and be a member of a creditors’ or other similar committee.

SECTION 6.11. Priorities .

Any money collected by the Trustee pursuant to this Article Six or property distributable in respect of the Company’s obligations under this Indenture after an Event of Default in respect of any series shall be applied in the following order:

FIRST: to the Trustee for amounts due under Section 7.07 or otherwise under this Indenture;

SECOND: to Holders for amounts due and unpaid on the affected Securities for principal, premium, if any, and interest as to each, ratably, without preference or priority of any kind, according to the amounts due and payable on the Securities; and

THIRD: to the Company with respect to any such series of Securities.

The Trustee may fix a record date and payment date for any payment to Holders pursuant to this Section 6.11.

SECTION 6.12. Undertaking for Costs .

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, 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 6.12 does not apply to a suit by the Trustee, a suit by a Holder pursuant to Section 6.08 or a suit by Holders of more than 10% in principal amount of the Securities then outstanding.

ARTICLE VII

TRUSTEE

SECTION 7.01. Duties of Trustee .

(a) If an Event of Default actually known to a Responsible Officer of the Trustee has occurred and is continuing, the Trustee shall exercise such of the rights and powers vested in it by this Indenture and use the same degree of care and skill in their exercise as a prudent person would exercise or use under the circumstances in the conduct of such Person’s own affairs.

(b) Except during the continuance of an Event of Default:

(1) The Trustee need perform only such duties as are specifically set forth in this Indenture and no others and no implied covenants or obligations shall be read into this Indenture against the Trustee.

23

(2) In the absence of bad faith or willful misconduct on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture but, in the case of any such certificates which by any provision hereof are specifically required to be furnished to the Trustee, the Trustee shall be under a duty to examine the same to determine whether or not they conform on their face to the requirements of this Indenture (but need not confirm or investigate the accuracy of mathematical calculations or other facts stated therein). 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, subject to the requirement in the preceding sentence, if applicable.

(c) The Trustee may not be relieved from liability for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that:

(1) This paragraph does not limit the effect of Section 7.01(b).

(2) The Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer or Responsible Officers of the Trustee, unless it is proved that the Trustee was negligent in ascertaining the pertinent facts.

(3) The Trustee shall not be liable with respect to any action it takes or omits to take in good faith in accordance with a direction of the Holders of a majority in aggregate principal amount of the Securities received by it pursuant to the terms hereof.

(4) No provision of this Indenture shall require the Trustee to expend or risk its own funds or otherwise incur any financial liability in the performance of any of its rights, powers or duties if it shall have reasonable grounds for believing that repayment of such funds or adequate indemnity satisfactory to it against such risk or liability is not reasonably assured to it.

(d) Whether or not therein expressly so provided, Sections 7.01(a), (b), (c) and (e) shall govern every provision of this Indenture that in any way relates to the Trustee.

(e) 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 pursuant to this Indenture, unless such Holders shall have offered to the Trustee security or indemnity satisfactory to the Trustee against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction.

(f) The Trustee shall not be liable for interest on any money received by it except as the Trustee may agree in writing with the Company. Money held in trust by the Trustee need not be segregated from other funds except to the extent required by the law.

SECTION 7.02. Rights of Trustee .

Subject to Section 7.01:

(1) The Trustee may conclusively rely on any document (whether in its original or facsimile form) reasonably believed by it to be genuine and to have been signed or presented by the proper person. The Trustee need not investigate any fact or matter stated in the document.

(2) Before the Trustee acts or refrains from acting, it may require an Officers’ Certificate or an Opinion of Counsel, or both, which shall conform to the provisions of Section 10.05. The Trustee shall be fully protected and shall not be liable for any action it takes or omits to take in reliance on such certificate or opinion.

(3) The Trustee may act through its attorneys and agents and shall not be responsible for the misconduct or negligence of any agent appointed by it.

(4) The Trustee shall not be liable for any action it takes or omits to take in good faith which it reasonably believes to be authorized or within its rights or powers; provided that the Trustee’s conduct does not constitute willful misconduct, negligence or bad faith.

24

(5) The Trustee may consult with counsel of its selection, and the advice or opinion of such counsel with respect to legal matters relating to the Securities or this Indenture or any Opinion of Counsel shall be full and complete authorization and protection from liability in respect of any action taken, omitted or suffered by it hereunder in accordance with the advice or opinion of such counsel or Opinion of Counsel.

(6) 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.

(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, other evidence of indebtedness 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 in its sole discretion, determines to do, 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.

(8) The Trustee shall not be liable for any action taken, suffered, or omitted to be taken by it and reasonably believed by it to be authorized or within the discretion or rights or powers conferred upon it by this Indenture.

(9) 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.

(10) The Trustee may request that the Company deliver an Officers’ Certificate setting forth the names of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture, which Officers’ Certificate may be signed by any person authorized to sign an Officers’ Certificate, including any person specified as so authorized in any such certificate previously delivered and not suspended.

(11) 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.

SECTION 7.03. Individual Rights of Trustee .

The Trustee in its individual or any other capacity may become the owner or pledgee of Securities and may make loans to, accept deposits from, perform services for or otherwise deal with the either of the Company, or any Affiliate thereof, with the same rights it would have if it were not Trustee. Any Agent may do the same with like rights. The Trustee, however, shall be subject to Sections 7.10 and 7.11.

SECTION 7.04. Trustee’s Disclaimer .

The Trustee shall not be responsible for and makes no representation as to the validity or adequacy of this Indenture or the Securities and it shall not be accountable for the Company’s use of the proceeds from the sale of Securities or any money paid to the Company pursuant to the terms of this Indenture and it shall not be responsible for any statement in the Securities or this Indenture other than its certificate of authentication. The Trustee shall have no responsibility or liability with respect to any information, statement or recital in any offering memorandum, prospectus, prospectus supplement or other disclosure material prepared or distributed with respect to the issuance of any of the Securities.

25

SECTION 7.05. Notice of Defaults .

If a Default occurs with respect to Securities of any series, and such Default is continuing and if it is known to a Responsible Officer of the Trustee, the Trustee shall give to each Holder of Securities of such series a notice of the Default within 90 days after it occurs in the manner and to the extent provided in the TIA and otherwise as provided in this Indenture. Except in the case of a Default in payment of the principal of or interest on any Security (including payments pursuant to a redemption or repurchase of the Securities pursuant to the provisions of this Indenture), the Trustee may withhold the notice if and so long as a committee of its Responsible Officers in good faith determines that withholding the notice is in the interests of Holders.

SECTION 7.06. Reports by Trustee to Holders .

If required by TIA § 313(a), within 60 days after May 15 of any year, the Trustee shall mail to each Holder a brief report dated as of such date that complies with TIA § 313(a). The Trustee also shall comply with TIA § 313(b)(2) to the extent applicable. The Trustee shall also transmit by mail all reports as required by TIA § 313(c) and TIA § 313(d).

Reports pursuant to this Section 7.06 shall be transmitted by mail:

(1) to all Holders of Securities, as the names and addresses of such Holders appear on the Registrar’s books; and

(2) to such Holders of Securities as have, within the two years preceding such transmission, filed their names and addresses with the Trustee for that purpose.

A copy of each report at the time of its mailing to Holders shall be filed with the Commission and each stock exchange on which the Securities are listed. The Company shall promptly notify the Trustee when the Securities are listed on any stock exchange or delisted therefrom.

SECTION 7.07. Compensation and Indemnity .

The Company shall pay to the Trustee and Agents from time to time such compensation for their services hereunder (which compensation shall not be limited by any provision of law in regard to the compensation of a trustee of an express trust) as shall be agreed upon in writing. The Company shall reimburse the Trustee and Agents upon request for all reasonable disbursements, expenses and advances incurred or made by them in connection with the Trustee’s duties under this Indenture, including the reasonable compensation, disbursements and expenses of the Trustee’s agents and external counsel, except any expense disbursement or advance as may be attributable to its willful misconduct or negligence.

The Company shall fully indemnify each of the Trustee and any predecessor Trustee for, and hold each of them harmless against, any and all loss, damage, claim, liability or expense, including without limitation taxes (other than taxes based on the income of the Trustee or such Agent) and reasonable attorneys’ fees and expenses incurred by each of them in connection with the acceptance or performance of its duties under this Indenture including the reasonable costs and expenses of defending itself against any claim (whether asserted by the Company, any Holder or any other Person) or liability in connection with the exercise or performance of any of its rights, powers or duties hereunder (including, without limitation, settlement costs) or in connection with enforcing the provisions of this Section 7.07. The Trustee or Agent shall notify the Company in writing promptly of any claim of which a Responsible Officer of the Trustee has actual knowledge asserted against the Trustee or Agent for which it may seek indemnity; provided that the failure by the Trustee or Agent to so notify the Company shall not relieve the Company of its obligations hereunder except to the extent the Company is actually prejudiced thereby.

The Trustee shall have the right to employ separate counsel in any such action or proceeding and participate in the investigation and defense thereof, and the Company shall pay the reasonable fees and expenses of such separate counsel.

26

Notwithstanding the foregoing, the Company need not reimburse the Trustee for any expense or indemnify it against any loss or liability to have been incurred by the Trustee through its own willful misconduct or negligence.

To secure the payment obligations of the Company to the Trustee in this Section 7.07 or otherwise pursuant to this Indenture, the Trustee shall have a lien prior to the Securities on all money or property held or collected by the Trustee except money or property held in trust to pay principal of and interest on particular Securities.

The obligations of the Company under this Section 7.07 to compensate and indemnify the Trustee, Agents and each predecessor Trustee and to pay or reimburse the Trustee, Agents and each predecessor Trustee for expenses, disbursements and advances shall be the liability of the Company and shall survive the resignation or removal of the Trustee and the satisfaction, discharge or other termination of this Indenture, including any termination or rejection hereof under any Bankruptcy Law.

When the Trustee incurs expenses or renders services after an Event of Default specified in Section 6.01(4) or (5) occurs, the expenses and the compensation for the services are intended to constitute expenses of administration under any Bankruptcy Law.

For purposes of this Section 7.07, the term “Trustee” shall include any trustee appointed pursuant to this Article Seven.

SECTION 7.08. Replacement of Trustee .

The Trustee may resign by so notifying the Company in writing no later than 15 Business Days prior to the date of the proposed resignation. The Holders of a majority in principal amount of the outstanding Securities of any series may remove the Trustee of such series by notifying the Company and the removed Trustee of such series in writing and may appoint a successor Trustee with the Company’s written consent, which consent shall not be unreasonably withheld. The Company may remove the Trustee at its election if:

(1) the Trustee fails to comply with Section 7.10 of this Indenture or Section 310 of the TIA;

(2) the Trustee is adjudged a bankrupt or an insolvent or an order for relief entered with respect to the Trustee under Bankruptcy Law;

(3) a receiver or other public officer takes charge of the Trustee or its property; and

(4) the Trustee otherwise becomes incapable of acting.

If the Trustee resigns or is removed with respect to the Securities of one or more series or if a vacancy exists in the office of Trustee for any reason, the Company shall promptly appoint a successor Trustee 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 and shall comply with the applicable requirements of Section 7.10.

If a successor Trustee with respect to the Securities of any series does not take office within 60 days after the retiring Trustee resigns or is removed, the retiring Trustee, the Company or the Holders of a majority in principal amount of the outstanding Securities of such series may petition at the expense of the Company any court of competent jurisdiction, in the case of the Trustee, for the appointment of a successor Trustee.

If the Trustee fails to comply with Section 7.10, any Holder may petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee.

A successor Trustee shall deliver a written acceptance of its appointment to the retiring Trustee and to the Company. Immediately following such delivery, the retiring Trustee shall, subject to its rights under Section 7.07, transfer all property held by it as Trustee to the successor Trustee, the resignation or removal of the retiring Trustee shall become effective, and the successor Trustee shall have all the rights, powers and duties of the Trustee under this Indenture. A successor Trustee shall mail notice of its

27

succession to each Holder of the affected Securities. Notwithstanding replacement of the Trustee pursuant to this Section 7.08, the Company’s obligations under Section 7.07 shall continue for the benefit of the retiring Trustee.

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 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, and such other provisions as shall protect the retiring Trustee from claims hereunder and protect the repayment of series owed to such retiring Trustee, 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 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.

SECTION 7.09. Successor Trustee by Consolidation, Merger, etc .

If the Trustee consolidates with, merges or converts into, or transfers all or substantially all of its corporate trust assets to, another corporation, subject to Section 7.10, the successor corporation without any further act shall be the successor Trustee; provided such entity shall be otherwise qualified and eligible under this Article Seven.

SECTION 7.10. Eligibility; Disqualification .

This Indenture shall always have a Trustee who satisfies the requirements of TIA § 310(a)(1), (2) and (5) in every respect. The Trustee (together with its corporate parent) shall have a combined capital and surplus of at least $50 million as set forth in the most recent applicable published annual report of condition. The Trustee shall comply with TIA § 310(b), including the provision in § 310(b)(1); provided , however , that there shall be excluded from the operation of TIA § 310(b)(1) any series of Securities under this Indenture and any indenture or indentures under which other securities or certificates of interest or participation in other securities of the Company are outstanding if the requirements for such exclusion set forth in TIA § 310(b)(1) are met.

SECTION 7.11. Preferential Collection of Claims Against Company .

The Trustee shall comply with TIA § 311(a), excluding any creditor relationship listed in TIA § 311(b). A Trustee who has resigned or been removed shall be subject to TIA § 311(a) to the extent indicated therein.

SECTION 7.12. Paying Agents .

The Company shall cause each Paying Agent other than the Trustee to execute and deliver to it and the Trustee an instrument in which such agent shall agree with the Trustee, subject to the provisions of this Section 7.12:

(A) that it will hold all sums held by it as agent for the payment of principal of, or premium, if any, or interest on, the Securities (whether such sums have been paid to it by the Company or by any obligor on the Securities) in trust for the benefit of Holders of the Securities or the Trustee;

28

(B) that it will at any time during the continuance of any Event of Default, upon written request from the Trustee, deliver to the Trustee all sums so held in trust by it together with a full accounting thereof; and

(C) that it will give the Trustee written notice within three (3) Business Days of any failure of the Company (or by any obligor on the Securities) in the payment of any installment of the principal of, premium, if any, or interest on, the Securities when the same shall be due and payable.

ARTICLE VIII

MODIFICATION AND WAIVER

SECTION 8.01. Without Consent of Holders .

The Company and the Trustee may modify and amend this Indenture without the consent of any Holder, for any of the following purposes:

(i) to evidence the assumption by a Successor Company of the covenants in this Indenture and series of Securities in compliance with Section 5.01;

(ii) to add to the covenants of the Company for the benefit of the Holders of the Securities or to surrender any right or power conferred upon the Company;

(iii) to add additional Events of Default;

(iv) to establish the form or terms of a new series of Securities under this Indenture as permitted by Section 2.01 and Section 2.02;

(v) to provide for uncertificated Securities in addition to or in place of certificated Securities;

(vi) to comply with any requirement of the Commission in connection with the qualification of this Indenture under the Trust Indenture Act;

(vii) to evidence and provide the acceptance of the appointment of a successor Trustee under Section 7.08;

(viii) to cure any ambiguity, defect or inconsistency in this Indenture or to correct a manifest error;

(ix) to guarantee or secure the Securities under this Indenture;

(x) to make any change that does not adversely affect the interests of any Holder of any series of the Securities in any material respect;

(xi) to release any guarantee in accordance with the terms of the Indenture; or

(xii) to add to, change or eliminate any of the provisions of this Indenture in respect of one or more series of Securities, provided that any such addition, change or elimination (A) shall neither (i) 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 (ii) modify the rights of the Holder of any such Security with respect to such provision or (B) shall become effective only when there is no such Security outstanding.

SECTION 8.02. With Consent of Holders .

(a) This Indenture may be amended with the consent of the registered Holders of a majority in aggregate principal amount of the then outstanding Securities of each series affected by the amendment voting as one class (including consents obtained in connection with a tender offer or exchange offer for such Securities), and any past Default or compliance with any provisions may also be waived (except a Default in the payment of principal, premium or interest and under Section 8.02(b) below) with the consent of the registered Holders of at least a majority in aggregate principal amount of the then outstanding Securities of the affected series voting as one class.

29

(b) However, without the consent of each Holder of an outstanding Security of the affected series, no amendment may,

(i) change the Stated Maturity of the Securities or the time when the Securities may or shall be redeemed;

(ii) reduce the principal amount of, or any premium or interest rate on, or any premium payable upon the redemption of any Security;

(iii) extend the time for payment of interest on the Securities;

(iv) impair the right to institute suit for the enforcement of any payment on or after the stated maturity of any Security (or in the case of redemption, on or after the redemption date of any Security);

(v) affect adversely the terms, if any, of conversion of any Security into the Company’s Capital Stock or other securities or of any other corporation;

(vi) reduce the percentage in principal amount of the then outstanding Securities of any series, the consent of whose Holders is required for any such amendment, supplement or any waiver (in compliance with certain provisions of this Indenture or certain Defaults hereunder and their consequences) provided for in this Indenture; or

(vii) modify any of the foregoing provisions or the provisions for the waiver of certain covenants and Defaults, except to increase any applicable percentage of the aggregate principal amount of outstanding Securities, the consent of the Holders of which is required or to provide with respect to any particular series the right to condition the effectiveness of any amendment, supplement or waiver as to that series on the consent of the Holders of a specified percentage of the aggregate principal amount of outstanding Securities of such series or to provide that certain other provisions of the Indenture cannot be modified or waived without the consent of the Holder of each outstanding Security affected thereby.

(c) The consent of the Holders of the Securities shall not be necessary to approve the particular form of any proposed amendment. It shall be sufficient if such consent approves the substance of the proposed amendment.

(d) After an amendment that requires the consent of the Holders of the affected Securities becomes effective, the Company shall mail to each registered Holder of the affected Securities at such Holder’s address appearing in the security register a notice briefly describing such amendment. However, the failure to give such notice to all Holders of such Securities, or any defect therein, shall not impair or affect the validity of the amendment.

(e) Upon the written request of the Company accompanied by a Board Resolution authorizing the execution of any such supplemental indenture, and upon the receipt by the Trustee of evidence not unsatisfactory to the Trustee of the consent of the Holders as aforesaid and upon receipt by the Trustee of the documents described in Section 8.06, the Trustee shall join with the Company in the execution of such supplemental indenture unless such supplemental indenture affects the Trustee’s own rights, duties or immunities under this Indenture, in which case the Trustee may, but shall not be obligated to, enter into such supplemental indenture.

SECTION 8.03. Compliance with Trust Indenture Act .

Every amendment or supplement to this Indenture or the Securities shall comply with the TIA as then in effect.

30

SECTION 8.04. Revocation and Effect of Consents .

(a) After an amendment, supplement, waiver or other action becomes effective, a consent to it by a Holder of a Security is a continuing consent conclusive and binding upon such Holder and every subsequent Holder of the same Security or portion thereof, and of any Security issued upon the transfer thereof or in exchange therefor or in place thereof, even if notation of the consent is not made on any such Security.

(b) The Company may, but shall not be obligated to, fix a record date for the purpose of determining the Holders entitled to consent to any amendment, supplement, or waiver. If a record date is fixed, then, notwithstanding the preceding paragraph, those Persons who were Holders at such record date (or their duly designated proxies), and only such Persons, shall be entitled to consent to such amendment, supplement, or waiver or to revoke any consent previously given, whether or not such Persons continue to be Holders after such record date. No such consent shall be valid or effective for more than 90 days after such record date unless the consent of the requisite number of Holders has been obtained.

SECTION 8.05. Notation on or Exchange of Securities .

If an amendment, supplement, or waiver changes the terms of a Security, the Trustee (in accordance with the specific written direction of the Company) shall request the Holder of the Security (in accordance with the specific written direction of the Company) to deliver it to the Trustee. In such case, the Trustee shall place an appropriate notation on the Security about the changed terms and return it to the Holder. Alternatively, if the Company or the Trustee so determines, the Company in exchange for the Security shall issue and the Trustee shall authenticate a new Security that reflects the changed terms. Failure to make the appropriate notation or issue a new Security shall not affect the validity and effect of such amendment, supplement or waiver.

SECTION 8.06. Trustee To Sign Amendments, etc .

The Trustee shall sign any amendment, supplement or waiver authorized pursuant to this Article Eight if the amendment, supplement or waiver does not affect the rights, duties, liabilities or immunities of the Trustee. If it does affect the rights, duties, liabilities or immunities of the Trustee, the Trustee may, but need not, sign such amendment, supplement or waiver. In signing or refusing to sign any such amendment, supplement or waiver, the Trustee shall be entitled to receive and, subject to Section 7.01, shall be fully protected in relying upon an Officers’ Certificate and an Opinion of Counsel stating, in addition to the matters required by Section 10.04, that such amendment, supplement or waiver is authorized or permitted by this Indenture and is a legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms (subject to customary exceptions).

ARTICLE IX

DISCHARGE OF INDENTURE; DEFEASANCE

SECTION 9.01. Discharge of Liability on Securities; Defeasance .

(a) This Indenture shall be discharged and shall cease to be of further effect as to all Securities issued hereunder when:

(i) either (x) all the Securities that have been authenticated, except lost, stolen or destroyed Securities that have been replaced or paid and Securities for whose payment money has been deposited in trust and thereafter repaid to the Company, have been delivered to the Trustee for cancellation; or (y) all the Securities 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 has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust solely for the benefit of the Holders of the affected Securities, cash in U.S. dollars, non-callable Government Obligations, or a combination of cash in U.S. dollars and non-callable Government Obligations, in amounts as will be sufficient without consideration of any reinvestment of interest, to pay and discharge the entire indebtedness on the Securities not delivered to the Trustee for cancellation for principal, premium, if any, and accrued interest to the date of maturity or redemption;

31

(ii) the Company has paid or caused to be paid all sums payable by it under this Indenture; and

(iii) the Company has delivered irrevocable instructions to the Trustee under this Indenture to apply the deposited money toward the payment of the Securities at maturity or the redemption date.

In addition, the Company shall deliver an Officers’ Certificate and an Opinion of Counsel to the Trustee, upon which the Trustee may conclusively rely, stating that (i) all conditions precedent to satisfaction and discharge have been satisfied at the cost and expense of the Company, (ii) no Default with respect to the Securities has occurred and is continuing and (iii) such deposit does not result in a breach or violation of, or constitute a default under, the Indenture or any other agreement or instrument to which the Company is a party.

(b) Subject to Sections 9.01(c) and 9.02, the Company may at any time elect to terminate some or all of its obligations under the outstanding Securities and this Indenture (hereinafter, “ Legal Defeasance ”) except for obligations under Sections 2.04, 2.07 and 2.08 and obligations under the TIA. The Company may terminate its obligations under Section 6.01(4) and (5) on a date the conditions set forth in Section 9.02 are satisfied (hereinafter, “ Covenant Defeasance ”) and thereafter, any omission to comply with any covenant referred to above will not constitute a Default or an Event of Default with respect to the Securities. The Company may exercise its Legal Defeasance option notwithstanding its prior exercise of its Covenant Defeasance option.

(c) If the Company exercises its Legal Defeasance option, payment of the Securities, may not be accelerated because of an Event of Default with respect thereto.

(d) Upon satisfaction of the conditions set forth herein and upon request of the Company, the Trustee shall acknowledge in writing the discharge of those obligations that the Company terminates.

(e) Notwithstanding clauses (a) and (b) above, the Company’s obligations in Sections 2.04, 2.05, 2.07, 2.08, 7.07, 9.05 and 9.06 shall survive until such time as the Securities have been paid in full. Thereafter, the Company’s obligations in Sections 7.07, 9.05 and 9.06 shall survive.

SECTION 9.02. Conditions to Defeasance .

The Legal Defeasance option or the Covenant Defeasance option, in Section 9.01 may be exercised only if:

(a) the Company irrevocably deposits in trust with the Trustee money or Government Obligations, or a combination thereof, for the payment of principal of and interest on the Securities to maturity or redemption;

(b) the Company delivers to the Trustee a certificate from a nationally recognized investment bank, appraisal firm, or firm of independent certified public accountants expressing their opinion that the payments of principal, premium, if any, and interest when due and without reinvestment on the deposited Government Obligations plus any deposited money without investment will provide cash at such times and in such amounts as will be sufficient to pay principal, premium, if any, and interest when due on all the Securities to maturity or redemption;

(c) 93 days pass after the deposit is made and during the 93-day period no Default described in Section 6.01(4) or Section 6.01(5) occurs with respect to the Company or any other Person making such deposit which is continuing at the end of the period;

(d) no Default or Event of Default has occurred and is continuing on the date of such deposit and after giving effect thereto;

(e) the Company delivers to the Trustee an Opinion of Counsel upon which the Trustee may conclusively rely, to the effect that the trust resulting from the deposit does not constitute, or is not qualified as, a regulated investment company under the Investment Company Act of 1940;

32

(f) in the case of an election of Legal Defeasance under Section 9.01, the Company delivers to the Trustee an Opinion of Counsel upon which the Trustee may conclusively rely, stating that:

(1) the Company has received from, or there has been published by, the Internal Revenue Service a ruling; or

(2) since the date of this Indenture there has been a change in the applicable U.S. Federal income tax law, to the effect, in either case, that, and based thereon such Opinion of Counsel shall confirm that, the Holders of the affected Securities will not recognize income, gain or loss for U.S. Federal income tax purposes as a result of such Legal Defeasance election and will be subject to U.S. Federal income tax on the same amounts, in the same manner and at the same time as would have been the case if such election has not occurred;

(g) in the case of an election of Covenant Defeasance under Section 9.01, the Company delivers to the Trustee an Opinion of Counsel upon which the Trustee may conclusively rely, to the effect that the Holders of the affected Securities will not recognize income, gain or loss for U.S. Federal income tax purposes as a result of such Covenant Defeasance and will be subject to U.S. Federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such election had not occurred; and

(h) the Company delivers to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent to an election under 9.01 have been complied with as required by this Indenture.

SECTION 9.03. Deposited Money and Government Obligations To Be Held in Trust; Other Miscellaneous Provisions .

All money and Government Obligations (including the proceeds thereof) deposited with the Trustee pursuant to Section 9.02(a) in respect of the outstanding Securities shall be held in trust and applied by the Trustee, in accordance with the provisions of such Securities and this Indenture, to the payment, either directly or through any Paying Agent, to the Holders of such Securities, 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 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 9.02(a) 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 Securities.

Anything in this Article Nine 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 Government Obligations held by it as provided in Section 9.02(a) which, in the opinion of a nationally recognized investment bank, appraisal firm, or 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 Legal Defeasance or Covenant Defeasance.

SECTION 9.04. Reinstatement .

If the Trustee or Paying Agent is unable to apply any money or Government Obligations in accordance with Section 9.01 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 obligations under this Indenture and the Securities shall be revived and reinstated as though no deposit had occurred pursuant to this Article Nine until such time as the Trustee or Paying Agent is permitted to apply all such money or Government Obligations in accordance with Section 9.01; provided that if the Company has made any payment of principal of, premium, if any, or accrued interest on any Securities because of the reinstatement of its obligations, the Company shall be subrogated to the rights of the Holders of such Securities to receive such payment from the money or Government Obligations held by the Trustee or Paying Agent.

33

SECTION 9.05. Moneys Held by Paying Agent .

In connection with the satisfaction and discharge of this Indenture, all moneys then held by any Paying Agent under the provisions of this Indenture shall, upon written demand of the Company, be paid to the Trustee, or if sufficient moneys have been deposited pursuant to Section 9.02(a), to the Company upon a request of the Company, and thereupon the Paying Agent shall be released from all further liability with respect to such moneys.

SECTION 9.06. Moneys Held by Trustee .

Any moneys deposited with the Trustee or any Paying Agent or then held by the Company in trust for the payment of the principal of, or premium, if any, or interest on any Security that are not applied but remain unclaimed by the Holder of such Security for two years after the date upon which the principal of, or premium, if any, or interest on such Security shall have respectively become due and payable shall be repaid to the Company upon a request of the Company, subject to compliance with applicable abandoned property law, or if such moneys are then held by the Company in trust, such moneys shall be released from such trust; and the Holder of such Security entitled to receive such payment shall thereafter, as an unsecured general creditor, look solely to the Company for the payment thereof, and all liability of the Trustee or the Paying Agent with respect to such trust money shall thereupon cease; provided that the Trustee or the Paying Agent, before being required to make any such repayment, may, at the expense of the Company either mail to each Holder affected, at the address shown in the register of the Securities maintained by the Registrar pursuant to Section 2.04, or cause to be published once a week for two successive weeks, in a newspaper published in the English language, customarily published each Business Day and of general circulation in the City of New York, New York, a 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 mailing or publication, any unclaimed balance of such moneys then remaining will be repaid to the Company. After payment to the Company or the release of any money held in trust by the Company, Holders entitled to the money must look only to the Company for payment as general creditors.

ARTICLE X

MISCELLANEOUS

SECTION 10.01. Trust Indenture Act Controls .

If any provision of this Indenture limits, qualifies or conflicts with another provision which is required to be included in this Indenture by the TIA, the required provision shall control. If any provision of this Indenture modifies any TIA provision that may be so modified, such TIA provision shall be deemed to apply to this Indenture as so modified. If any provision of this Indenture excludes any TIA provision that may be so excluded, such TIA provision shall be excluded from this Indenture.

The provisions of TIA §§ 310 through 317 that impose duties on any Person (including the provisions automatically deemed included unless expressly excluded by this Indenture) are a part of and govern this Indenture, whether or not physically contained herein.

SECTION 10.02. Notices .

Except for notice or communications to Holders, any notice or communication shall be given in writing and when received if delivered in person, when receipt is acknowledged if sent by facsimile, on the next Business Day if timely delivered by a nationally recognized courier service that guarantees overnight delivery or two Business Days after deposit if mailed by first-class mail, postage prepaid, addressed as follows:

If to the Company:

Briggs & Stratton Corporation

12301 West Wirth Street

Wauwatosa, Wisconsin 53222

Attn: General Counsel

34

With a copy to:

Foley & Lardner LLP

777 East Wisconsin Avenue

Milwaukee, Wisconsin 53202

Attn: Patrick G. Quick

   Mark T. Plichta

If to the Trustee, Registrar or Paying Agent:

Mailing Address:

Wells Fargo Bank, National Association

230 West Monroe Street, Suite 2900

Chicago, IL 60606

Attn: Corporate Trust Services

Such notices or communications shall be effective when received and shall be sufficiently given if so given within the time prescribed in this Indenture.

The Company or the Trustee by written notice to the others may designate additional or different addresses for subsequent notices or communications.

Any notice or communication mailed to a Holder shall be mailed to such Holder by first-class mail, postage prepaid, at his address shown on the register kept by the Registrar.

Failure to mail a notice or communication to a Holder or any defect in it shall not affect its sufficiency with respect to other Holders. If a notice or communication to a Holder is mailed in the manner provided above, it shall be deemed duly given, whether or not the addressee receives it.

In case by reason of the suspension of regular mail service, or by reason of any other cause, it shall be impossible to mail any notice as required by this Indenture, then such method of notification as shall be made with the approval of the Trustee shall constitute a sufficient mailing of such notice.

The Trustee agrees to accept and act upon instructions or directions pursuant to this Indenture sent by unsecured e-mail, facsimile transmission or other similar unsecured electronic methods; provided , however , that (a) the party providing such written instructions, subsequent to such transmission of written instructions, shall provide the originally executed instructions or directions to the Trustee in a timely manner, and (b) such originally executed instructions or directions shall be signed by an authorized representative of the party providing such instructions or directions. If the party elects to give the Trustee e-mail or facsimile instructions (or instructions by a similar electronic method) and the Trustee in its discretion elects to act upon such instructions, the Trustee’s understanding of such instructions shall be deemed controlling. The Trustee shall not be liable for any losses, costs or expenses arising directly or indirectly from the Trustee’s reliance upon and actions pursuant to such instructions. The party providing electronic instructions agrees to assume all risks arising out of the use of such electronic methods to submit instructions and directions to the Trustee, including without limitation the risk of the Trustee acting on unauthorized instructions, and the risk or interception and misuse by third parties.

Notwithstanding anything to the contrary contained herein, as long as the Securities are in the form of a Global Security, notice to the Holders may be made electronically in accordance with Applicable Procedures.

SECTION 10.03. Communications by Holders with Other Holders .

Holders may communicate pursuant to TIA § 312(b) with other Holders with respect to their rights under this Indenture or the Securities. The Company, the Trustee, the Registrar and anyone else shall have the protection of TIA § 312(c).

35

SECTION 10.04. Certificate and Opinion as to Conditions Precedent .

Upon any request or application by the Company to the Trustee to take any action under this Indenture, the Company shall furnish to the Trustee upon which the Trustee may conclusively rely:

(1) an Officers’ Certificate (which shall include the statements set forth in Section 10.05 below) stating that, in the opinion of the signers, all conditions precedent, if any, provided for in this Indenture relating to the proposed action have been complied with; and

(2) an Opinion of Counsel (which shall include statements to a similar effect as those set forth in Section 10.05(1), (2) and (3) below) stating that, in the opinion of such counsel, all such conditions precedent have been complied with (to the extent such conditions precedent involve legal conclusions).

SECTION 10.05. Statements Required in Certificate and Opinion .

Each certificate with respect to compliance by or on behalf of the Company with a condition or covenant provided for in this Indenture shall include:

(1) a statement that the Person making such certificate or opinion has read such covenant or condition;

(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 such Person, it or he has made such examination or investigation as is necessary to enable it or him to express an informed opinion as to whether or not such covenant or condition has been complied with; and

(4) a statement as to whether or not, in the opinion of such Person, such covenant or condition has been complied with.

SECTION 10.06. Rules by Trustee and Agents .

The Trustee may make reasonable rules for action by or meetings of Holders. The Registrar and Paying Agent may make reasonable rules for their functions.

SECTION 10.07. Legal Holidays .

A “ Legal Holiday ” is a Saturday, a Sunday or other day on which (i) the Trustee or commercial banks in the City of New York are authorized or required by law to close or (ii) the New York Stock Exchange is not open for trading. If a payment date is a Legal Holiday at a place of payment, payment may be made at that place on the next succeeding day that is not a Legal Holiday, and no interest shall accrue for the intervening period.

SECTION 10.08. Governing Law .

This Indenture and the Securities shall be governed by and construed in accordance with the laws of the State of New York.

SECTION 10.09. No Adverse Interpretation of Other Agreements .

This Indenture may not be used to interpret another indenture, loan, security or debt agreement of the Company. No such indenture, loan, security or debt agreement may be used to interpret this Indenture.

SECTION 10.10. Successors .

All agreements of the Company in this Indenture and the Securities shall bind their respective successors. All agreements of the Trustee, any additional trustee and any Paying Agents in this Indenture shall bind its successor.

36

SECTION 10.11. Multiple Counterparts .

The parties may sign multiple counterparts of this Indenture. Each signed counterpart shall be deemed an original, but all of them together represent one and the same agreement.

SECTION 10.12. Table of Contents, Headings, etc .

The table of contents, cross-reference sheet and headings of the Articles and Sections of this 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 10.13. Separability .

Each provision of this Indenture shall be considered separable and if for any reason any provision which is not essential to the effectuation of the basic purpose of this Indenture or the Securities 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 10.14. 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 SECURITIES OR THE TRANSACTIONS CONTEMPLATED HEREBY.

SECTION 10.15. 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 and consistent with the facts which gave rise to the event, to resume performance as soon as practicable under the circumstances.

[Signature Pages Follow]

37

IN WITNESS WHEREOF, the parties have caused this Indenture to be duly executed all as of the date and year first written above.

38

EXHIBIT A-1

[If the Security is an Original Issue Discount Security, insert—THIS SECURITY IS ISSUED WITH ORIGINAL ISSUE DISCOUNT FOR PURPOSES OF SECTION 1271 et seq . OF THE INTERNAL REVENUE CODE. FOR EACH $[1,000] PRINCIPAL AMOUNT AT MATURITY OF THIS SECURITY, THE ISSUE PRICE IS $[            ] AND THE AMOUNT OF ORIGINAL ISSUE DISCOUNT IS $[            ]. THE ISSUE DATE OF THIS SECURITY IS [            ] AND THE YIELD TO MATURITY IS [    ]%.]

CUSIP

BRIGGS & STRATTON CORPORATION

[    ] % [SECURITY] DUE 20[      ]

BRIGGS & STRATTON CORPORATION, a Wisconsin corporation, as issuer (the “ Company ”), for value received, promises to pay to CEDE & CO. or registered assigns the principal sum of [            ] on [    ], 20[    ].

Interest Payment Dates: [            ] and [            ].

Record Dates: [            ] and [            ].

Reference is made to the further provisions of this Security contained herein, which will for all purposes have the same effect as if set forth at this place.

A-1-1

IN WITNESS WHEREOF, the Company has caused this Security to be signed manually or by facsimile by one of its duly authorized officers.

A-1-2

Certificate of Authentication

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

Dated:

A-1-3

[FORM OF REVERSE OF SECURITY]

BRIGGS & STRATTON CORPORATION

[    ]%[SECURITY] DUE 20[    ]

1. Interest . BRIGGS & STRATTON CORPORATION, a Wisconsin corporation, as issuer (the “ Company ”), promises to pay, until the principal hereof is paid or made available for payment, interest on the principal amount set forth on the face hereof at a rate of [    ]% per annum. Interest hereon will accrue from and including the most recent date to which interest has been paid or, if no interest has been paid, from and including [    ] to but excluding the date on which interest is paid. Interest shall be payable in arrears on each [    ] and [    ], commencing [    ]. Interest will be computed on the basis of a 360-day year comprised 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 borne by the Securities.

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 [            ] and [            ] immediately preceding the interest payment date (whether or not a Business Day). Holders must surrender Securities to a Paying Agent to collect principal payments. The Company will pay to the Paying Agent principal and interest in money of the United States of America that at the time of payment is legal tender for payment of public and private debts. If a Holder has given wire transfer instructions to the Company, the Company may pay, or cause to be paid by the Paying Agent, all principal, interest on that Holder’s Securities in accordance with those instructions. All other payments on the Securities will be made at the office or agency of the Paying Agent and Registrar unless the Company elects to make interest payments by check mailed to the Holders at their address set forth in the register of Holders.

3. Paying Agent and Registrar . Initially, Wells Fargo Bank, National Association (the “ Trustee ”) will act as a Paying Agent and Registrar. The Company may change any Paying Agent or Registrar without notice to the Holders. The Company or any of its Subsidiaries may act as Paying Agent or Registrar.

4. Indenture . This Security is of the series designated on the face hereof [limited in aggregate principal amount to $              ]. This Security is one of a duly authorized issue of securities of the Company issued and to be issued in one or more series under an Indenture dated as of              , 20[    ] (the “ Indenture ,” which term shall have the meaning assigned to it in such instrument) between the Company and the Trustee. This is one of an issue of Securities of the Company issued, or to be issued, under the Indenture. The terms of the Securities 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 “ Trust Indenture Act ”). The Securities are subject to all such terms, and Holders are referred to the Indenture and the Trust Indenture 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.

[5. If applicable, insert — Optional Redemption . The Securities of this series are subject to redemption [if applicable, insert — [at any time] [on or after , 20      ], as a whole or in part, at the election of the Company at the Redemption Price equal to              ]. The Company may provide in such notice that payment of such price and performance of the Company’s obligations with respect to such redemption or purchase may be performed by another Person. Any such notice may, at the Company’s discretion, be subject to the satisfaction of one or more conditions precedent.]

[6. If applicable, insert — Redemption Procedures . The Trustee will select Securities called for redemption on a pro rata basis or on as nearly a pro rata basis as is practicable (subject to procedures of the Depository); provided that no Securities of $[            ] or less shall be redeemed in part. A new Security of this series in principal amount equal to the unredeemed portion thereof will be issued in the name of the Holder thereof upon cancellation of the original Security. Securities called for redemption pursuant to this paragraph 6 hereto become due on the date fixed for redemption. On and after the date fixed for redemption, interest stops accruing on Securities or portions of them called for redemption.]

[7. If applicable, insert — 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 Securities to be redeemed at its registered address. If any Security of this series is to be redeemed in part only, the notice of redemption that relates to such Security shall state the portion of the principal amount thereof to be redeemed.]

[8. If the Security is not an Original Issue Discount Security, insert — If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture.]

[9. If the Security is an Original Issue Discount Security, insert — If an Event of Default with respect to the Securities of this series shall occur and be continuing, an amount of principal of the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture. Such amount shall be equal to—insert formula for determining the amount. Upon payment (i) of the amount of principal so declared due and payable and (ii) of interest on any overdue principal and overdue interest (in each case to the extent that the payment of such interest shall be legally enforceable), all of the Company’s obligations in respect of the payment of the principal of and interest, if any, on the Securities of this series shall terminate.]

10. Denominations, Transfer, Exchange . The Securities of this series are in registered form without coupons and in denominations of $[            ] and integral multiples of $[            ]. A Holder may transfer or exchange Securities of this series in accordance with the Indenture. The 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.

11. Persons Deemed Owners . The registered Holder of this Security may be treated as the owner of this Security for all purposes.

12. Unclaimed Money . If money for the payment of principal or interest remains unclaimed for two years, the Trustee or Paying Agent will pay the money back to the Company at its written request, subject to applicable abandoned property law. After that, Holders entitled to the money must look to the Company for payment as general creditors.

13. Amendment, Supplement, Waiver, Etc . The Company and the Trustee (if a party thereto) may, without the consent of the Holders of any outstanding Securities, amend, waive or supplement the Indenture or the Securities for certain specified purposes, including, among other things, curing ambiguities, defects or inconsistencies, maintaining the qualification of the Indenture under the Trust Indenture Act, as amended, providing for the assumption by a successor to the Company of its obligations under the Indenture and making any change that does not materially and adversely affect the rights of any Holder of each series to be affected. Other amendments and modifications of the Indenture or the Securities of each series may be made by the Company and the Trustee with the consent of the Holders of Securities of such series of not less than a majority of the aggregate principal amount of the outstanding Securities of such series, subject to certain exceptions requiring the consent of the Holders of the particular Securities of such series to be affected.

14. Successor Corporation . When a successor corporation assumes all the obligations of its predecessor under the Securities and the Indenture and the transaction complies with the terms of Article Five of the Indenture, the predecessor corporation will, except as provided in Article Five, be released from those obligations.

15. Defaults and Remedies . Events of Default are set forth in the Indenture. Subject to certain limitations in the Indenture, if an Event of Default (other than an Event of Default specified in Sections 6.01(4) and 6.01(5) of the Indenture) with respect to the Securities of this series occurs and is continuing, then, and in each and every such case, either the Trustee, by notice in writing to the Company, or the Holders of not less than 25% of the principal amount of the Securities of this series then outstanding, by notice in writing to the Company and the Trustee, may declare due and payable, if not already due and payable, the principal of and any accrued and unpaid interest on all of the Securities of this series; and upon any such declaration all such amounts upon such Securities shall become and be immediately due and

payable, anything in the Indenture or in the Securities to the contrary notwithstanding. If an Event of Default specified in Sections 6.01(4) and 6.01(5) of the Indenture occurs, then the principal of and any accrued and unpaid interest on all of the Securities of this series shall immediately become due and payable without any declaration or other act on the part of the Trustee or any Holder. Holders may not enforce the Indenture or the Securities of this series except as provided in the Indenture. The Trustee may require indemnity satisfactory to it before it enforces the Indenture or the Securities of this series. Subject to certain limitations, Holders of a majority in principal amount of the then outstanding Securities may direct the Trustee in its exercise of any trust or power. The Trustee may withhold from Holders notice of any continuing Default (except a Default in payment of principal, premium, if any, or interest on the Securities of this series) if it determines that withholding notice is in their best interests.

16. Trustee Dealings with Company . Subject to certain limitations imposed by the Trust Indenture Act, 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 past, present or future director, officer, employee, incorporator, agent, member or stockholder or Affiliate of the Company, as such, shall have any liability for any obligations of the Company under the Securities of this series, the Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Securities of this series by accepting a Security of this series waives and releases all such liabilities. The waiver and release are part of the consideration for issuance of the Securities of this series.

18. Discharge . The Company’s obligations pursuant to the Indenture with respect to Securities of this series will be discharged, except for obligations pursuant to certain sections thereof, subject to the terms of the Indenture, upon the payment of all the Securities of this series or upon the irrevocable deposit with the Trustee of United States dollars or Government Obligations sufficient to pay when due principal of and interest on the Securities of this series to maturity or redemption.

19. Authentication . This Security shall not be valid until the Trustee signs the certificate of authentication on the other side of this Security.

20. Governing Law . THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

21. Abbreviations . Customary abbreviations may be used in the name of a Holder or an assignee, such as: TEN COM (= tenants in common), TENANT (= 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).

The Company will furnish to any Holder upon written request and without charge a copy of the Indenture. Requests may be made to:

Briggs & Stratton Corporation

12301 West Wirth Street

Wauwatosa, Wisconsin 53222

Attn: General Counsel

With a copy to:

Foley & Lardner LLP

777 East Wisconsin Avenue

Milwaukee, WI 53202

Attn: Patrick G. Quick

          Mark T. Plichta

ASSIGNMENT

I or we assign and transfer this Security to:                                                                                               

(Insert assignee’s social security or tax I.D. number)

(Print or type name, address and zip code of assignee)

                                      Agent to transfer this Security on the books of the Company. The Agent may substitute another to act for him.

Signature Guarantee:                                                                                               

SIGNATURE GUARANTEE

Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Registrar, 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 Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

Exhibit 4.2

BRIGGS & STRATTON CORPORATION, as Issuer

BRIGGS & STRATTON POWER PRODUCTS GROUP, LLC, as Guarantor

and

WELLS FARGO BANK, NATIONAL ASSOCIATION,

as Trustee

6   ⁷ / 8 % SENIOR NOTES DUE 2020

FIRST SUPPLEMENTAL INDENTURE DATED AS OF

December 20, 2010

TO THE INDENTURE DATED AS OF

December 20, 2010

TABLE OF CONTENTS

-i-

-ii-

-iii-

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

This FIRST SUPPLEMENTAL INDENTURE, dated as of December 20, 2010 (this “ Supplemental Indenture ”), is by and among Briggs & Stratton Corporation, a Wisconsin corporation (such corporation and any successor under the Indenture, the “ Company ”), Briggs & Stratton Power Products Group, LLC (such corporation and any successor under the Subsidiary Guarantee, the “ Guarantor ”) and Wells Fargo Bank, National Association, a national banking association, as trustee (such institution and any successor under the Indenture, the “ Trustee ”).

WITNESSETH:

WHEREAS, the Company has executed and delivered an indenture, dated as of December 20, 2010 (the “ Base Indenture ”), with the Trustee providing for the issuance from time to time of one or more series of the Company’s senior debt securities;

WHEREAS, Section 2.01 of the Base Indenture provides that the Company may establish the form or terms of debt securities of any series as permitted by Sections 2.01, 2.02 and 2.03 of the Base Indenture;

WHEREAS, the Company is entering into this Supplemental Indenture to establish the form and terms of its 6  ⁷ / 8 % Senior Notes due 2020 (the “ Notes ”, which defined term shall include the Initial Notes and any Additional Notes);

WHEREAS, the Base Indenture is incorporated herein by reference and the Base Indenture, as supplemented by this Supplemental Indenture, is herein called this “ Indenture ”; and

WHEREAS, all conditions necessary to authorize the execution and delivery of this Supplemental Indenture and to make it a valid and binding obligation of the Company and the Guarantor have been done or performed.

NOW, THEREFORE, in consideration of the agreements and obligations set forth herein and for other good and valuable consideration, the sufficiency of which is hereby acknowledged, the Company, the Guarantor and the Trustee agree as follows for the benefit of each other and for the equal and ratable benefit of the Holders of the Notes.

ARTICLE 1

ESTABLISHMENT; DEFINITIONS AND INCORPORATION BY REFERENCE

SECTION 1.01. Establishment .

(a) There is hereby established a new series of Securities to be issued under this Supplemental Indenture, to be designated as the Company’s “6  ⁷ / 8 % Senior Notes due 2020”.

(b) There are to be authenticated and delivered on the date hereof $225,000,000 aggregate principal amount of the Notes. Additional Notes may be issued under this Supplemental Indenture after the date hereof in accordance with Section 2.03.

(c) The Notes shall be issued substantially in the form of Exhibit A hereto (subject, in the case of Additional Notes, to revisions to reflect the terms thereof established in accordance with Section 2.03).

(d) Each Note shall be dated the date of authentication thereof and shall bear interest from the date of original issuance thereof or from the most recent date to which interest has been paid or duly provided for.

(e) With respect to the Notes (and the Subsidiary Guarantee) only, the Base Indenture shall be supplemented pursuant to Section 2.01 thereof to establish the terms of the Notes (and the Subsidiary Guarantee) as set forth in this Supplemental Indenture, including as follows:

(i) the provisions of Section 4.01 of the Base Indenture are deleted and replaced in their entirety by the provisions of Section 4.01 hereof;

(ii) the provisions of Sections 4.05 and 4.06 of the Base Indenture are deleted in their entirety;

(iii) the provisions of Section 4.07 of the Base Indenture are deleted and replaced in their entirety by the provisions of Section 4.02 hereof;

(iv) the provisions of Section 4.08 of the Base Indenture are deleted and replaced in their entirety by the provisions of Section 4.03 hereof;

(v) the provisions of Article V of the Base Indenture are deleted and replaced in their entirety by the provisions of Article 5 hereof;

(vi) the provisions of Sections 6.01 and 6.02 of the Base Indenture are deleted and replaced in their entirety by the provisions of Sections 6.01 and 6.02 hereof;

(vii) the provisions of Sections 8.01 and 8.02 of the Base Indenture are deleted and replaced in their entirety by the provisions of Article 8 hereof;

(viii) the provisions of Sections 9.01 and 9.02 of the Base Indenture are deleted and replaced in their entirety by the provisions of Article 9 hereof;

(ix) payment by wire transfer of immediately available funds will be required with respect to principal of and interest and premium on all Global Securities and all other Notes the Holders of which shall have provided wire transfer instructions no later than 30 days immediately preceding the relevant due date for payment (or such other date as the Trustee may accept in its judgment) to the Company or the Paying Agent. All other payments on Notes will be made at the office or agency of the Paying Agent and Registrar unless the Company elects to make interest payments by check mailed to the Holders at their respective addresses set forth in the Security Register.

To the extent that the provisions of this Supplemental Indenture (including those referred to immediately above) conflict with any provision of the Base Indenture, the provisions of this Supplemental Indenture shall govern and be controlling solely with respect to the Notes (and the Subsidiary Guarantee).

(f) Unless otherwise expressly specified, references in this Supplemental Indenture to specific Article numbers or Section numbers refer to Articles and Sections contained in this Supplemental Indenture, and not the Base Indenture or any other document.

-2-

SECTION 1.02. Certain Definitions .

(a) All capitalized definitional terms used herein and not otherwise defined below shall have the meanings ascribed thereto in the Base Indenture.

(b) Set forth below are certain defined terms used in this Supplemental Indenture and to the extent that a term is defined both herein and in the Base Indenture, unless otherwise specified, the definition in this Supplemental Indenture shall govern solely with respect to the Notes (and the Subsidiary Guarantee).

“ Acquired Debt ” means, with respect to any specified Person:

(1) Indebtedness of any other Person existing at the time such other Person is merged with or into or became a Subsidiary of such specified Person, whether or not such Indebtedness is incurred in connection with, or in contemplation of, such other Person merging with or into, or becoming a Subsidiary of, such specified Person; and

(2) Indebtedness secured by a Lien encumbering any asset acquired by such specified Person, to the extent such Indebtedness is secured by such Lien.

“ Additional Notes ” means any Notes (other than Initial Notes) issued under this Indenture in accordance with Sections 2.03 and 4.09 hereof, as part of the same series as the Initial Notes.

“ 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 and policies of such Person, whether through the ownership of voting securities, by agreement or otherwise; provided that for purposes of Section 4.11, beneficial ownership of 10% or more of the Voting Stock of a Person will be deemed to be control. For purposes of this definition, the terms “ controlling ,” “ controlled by ” and “ under common control with ” have correlative meanings.

“ Applicable Procedures ” means, with respect to any transfer, redemption or exchange of or for beneficial interests in any Global Security, the rules and procedures of the Depository, Euroclear and Clearstream that apply to such transfer, redemption or exchange.

“ Asset Acquisition ” means (a) an Investment by the Company or any Restricted Subsidiary in any other Person pursuant to which such Person shall become a Restricted Subsidiary, or shall be merged with or into the Company or any Restricted Subsidiary; or (b) the acquisition by the Company or any Restricted Subsidiary of the assets of any Person which constitute all or substantially all of the assets of such Person, any division or line of business of such Person or any other properties or assets of such Person other than in the ordinary course of business and consistent with past practices.

“ Asset Sale ” means (1) the sale, transfer, conveyance or other disposition of any assets, excluding the issuance or sale of the Company’s Equity Interests (each referred to in this definition as a “disposition”); and (2) the issuance or sale of Equity Interests of any Restricted Subsidiary or sale of Equity Interests in any of its Restricted Subsidiaries; provided that the disposition of all or substantially all of the assets of the Company and its Restricted Subsidiaries taken as a whole will be governed by Section 4.13 and/or Section 5.01 and not by Section 4.10.

-3-

Notwithstanding the preceding, the following items will not be deemed to be Asset Sales:

(1) any single disposition or series of related dispositions that involves assets or rights having a Fair Market Value of less than $20.0 million;

(2) dispositions of cash or Cash Equivalents;

(3) the sale and leaseback of any assets within 90 days of the acquisition thereof;

(4) a disposition between or among the Company and its Restricted Subsidiaries or between or among the Company’s Restricted Subsidiaries;

(5) the disposition of equipment, inventory, accounts receivable or other assets or rights in the ordinary course of business;

(6) a Restricted Payment that is permitted by Section 4.07 or an Investment not prohibited by this Indenture;

(7) the disposition of assets that, in the Company’s good faith judgment, are no longer used or useful in the business of the applicable entity;

(8) any trade-in of equipment in exchange for other equipment; provided that in the Company’s good faith judgment, the Company or such Restricted Subsidiary receives equipment having a Fair Market Value equal to or greater than the equipment being traded in;

(9) the concurrent purchase and sale or exchange of Related Business Assets or a combination of Related Business Assets between the Company or any of its Restricted Subsidiaries and another Person to the extent that the Related Business Assets received by the Company or the Company’s Restricted Subsidiaries are of equivalent or better Fair Market Value than the Related Business Assets transferred;

(10) the creation of a Lien (but not the sale or other disposition of the property subject to such Lien);

(11) leases or subleases in the ordinary course of business to third persons not interfering in any material respect with the business of the Company or any of its Restricted Subsidiaries and otherwise in accordance with the provisions of this Indenture;

(12) dispositions of accounts receivable in connection with the collection or compromise thereof in the ordinary course of business and consistent with past practice;

(13) licensing or sublicensing of intellectual property or other general intangibles in accordance with industry practice in the ordinary course of business;

(14) any transfer or sale of accounts receivable or other financial assets, or a fractional undivided interest therein, by or to (directly or indirectly) a Receivable Subsidiary in a Qualified Receivables Transaction; or

(15) foreclosures on assets to the extent it would not otherwise result in a Default or Event of Default.

-4-

For purposes of this definition, any series of related transactions that, if effected as a single transaction, would constitute an Asset Sale, shall be deemed to be a single Asset Sale effected when the last such transaction which is a part thereof is effected.

“ Attributable Debt ” in respect of a sale and leaseback transaction means, at the time of determination, the present value of the obligation of the lessee for net rental payments during the remaining term of the lease included in such sale and leaseback transaction, including any period for which such lease has been extended or may, at the option of the lessor, be extended. Such present value shall be calculated using a discount rate equal to the rate of interest implicit in such transaction, determined in accordance with GAAP.

“ Board of Directors ” means:

(1) with respect to a corporation, the board of directors of the corporation or any duly authorized committee thereof;

(2) with respect to a partnership, the board of directors of the general partner of the partnership; and

(3) with respect to any other Person, the board or committee of such Person or, as applicable, another Person serving a similar function.

“ 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 be required to be capitalized on a balance sheet in accordance with GAAP as in effect as of the Issue Date.

“ Capital Stock ” means:

(1) in the case of a corporation, any and all equity shares, including common stock and preferred stock;

(2) in the case of an association or business entity, any and all shares, interests, participations, rights or other equivalents (however designated) of corporate stock;

(3) in the case of a partnership or limited liability company, partnership or membership interests (whether general or limited); and

(4) 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.

“ Cash Equivalents ” means:

(1) United States dollars;

(2) securities issued or directly and fully guaranteed or insured by the United States government or any agency or instrumentality of the United States government ( provided that the full faith and credit of the United States is pledged in support of those securities) having maturities of not more than one year from the date of acquisition;

(3) time deposits in and certificates of deposit of any Eligible Bank, provided that such time deposits and certificates of deposit have a maturity date not more than two years after the date of acquisition and that the weighted average maturity of all such time deposits and certificates of deposit is one year or less from the respective dates of acquisition;

-5-

(4) repurchase obligations with a term of not more than 180 days for underlying securities of the types described in clauses (2) and (3) above entered into with any Eligible Bank;

(5) direct obligations issued by any state of the United States or any political subdivision or public instrumentality thereof, provided that such obligations mature, or are subject to tender at the option of the holder thereof, within 365 days after the date of acquisition;

(6) commercial paper of any Person other than an Affiliate of the Company and other than structured investment vehicles, provided that such commercial paper has one of the two highest ratings obtainable from either Standard & Poor’s or Moody’s and matures within 180 days after the date of acquisition;

(7) (A) overnight and demand deposits in and bankers’ acceptances of any Eligible Bank and (B) overnight and demand deposits in any other bank or trust company to the extent insured by the Federal Deposit Insurance Corporation against the Bank Insurance Fund; and

(8) money market funds substantially all of the assets of which constitute Cash Equivalents of the kinds described in clauses (1) through (7) of this definition.

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

(1) any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all or substantially all of the assets of the Company to any Person or group of related Persons for purposes of Section 13(d) of the Exchange Act (a “ Group ”), together with any Affiliates thereof (whether or not otherwise in compliance with the provisions of this Indenture), other than to a Subsidiary Guarantor;

(2) the approval by the holders of Capital Stock of the Company of any plan or proposal for the liquidation or dissolution of the Company (whether or not otherwise in compliance with the provisions of this Indenture);

(3) the Company becomes aware that any Person or Group is or has become the owner, directly or indirectly, beneficially or of record, of shares representing more than 50% of the aggregate ordinary voting power represented by the issued and outstanding Capital Stock of the Company;

(4) the replacement of a majority of the Board of Directors of the Company over a two-year period from the directors who constituted the Board of Directors of the Company at the beginning of such period, and such replacement shall not have been approved by a vote of at least a majority of the Board of Directors then still in office who either were members of such Board of Directors at the beginning of such period or whose election as a member of such Board of Directors was previously so approved; or

(5) the Company consolidates with, or merges with or into, any Person, or any Person, other than a Subsidiary Guarantor, consolidates with, or merges with or into, the Company, in any such event pursuant to a transaction in which any of the Company’s outstanding Voting Stock or the outstanding Voting Stock of such other Person is converted into or exchanged for cash, securities or other property, other than any such transaction where the Company’s Voting

-6-

Stock outstanding immediately prior to such transaction is converted into or exchanged for Voting Stock (other than Disqualified Stock) of the surviving or transferee Person constituting a majority of the outstanding shares of such Voting Stock of such surviving or transferee Person (immediately after giving effect to such issuance).

“ Clearstream ” means Clearstream Banking S.A. and any successor thereto.

“ Consolidated Cash Flow ” means, with respect to any specified Person for any period, the Consolidated Net Income of such Person for such period plus:

(1) an amount equal to any extraordinary loss plus any net loss realized by such Person or any of its Subsidiaries in connection with an Asset Sale, to the extent such losses were deducted in computing such Consolidated Net Income; plus

(2) provision for taxes based on or measured by income or profits of such Person and its Restricted Subsidiaries for such period to the extent the same was deducted in computing such Consolidated Net Income; plus

(3) consolidated interest expense of such Person and its Restricted Subsidiaries for such period, whether paid or accrued and whether or not capitalized (including, without limitation, amortization of debt issuance costs and original issue discount, non-cash interest payments, the interest component of any deferred payment obligations, the interest component of all payments associated with Capital Lease Obligations, imputed interest with respect to Attributable Debt, commissions, discounts and other fees and charges incurred in respect of letter of credit or bankers’ acceptance financings, and net of the effect of all payments made or received pursuant to Hedging Obligations), to the extent that any such expense was deducted in computing such Consolidated Net Income; plus

(4) depreciation, amortization (including amortization of goodwill, other intangibles, deferred financing fees, debt issuance costs, commissions, fees and expenses) and other non-cash expenses (excluding any such non-cash expense to the extent that it represents an accrual of or reserve for cash expenses in any future period) of such Person and its Restricted Subsidiaries for such period to the extent that such depreciation, amortization and other non-cash expenses were deducted in computing such Consolidated Net Income; plus

(5) any expenses or charges related to any public or private sale of Capital Stock of the Company or any Permitted Investment, acquisition, recapitalization or Indebtedness permitted to be incurred under this Indenture (in each case whether or not consummated) or to the transactions contemplated by the Company’s prospectus supplement dated as of December 15, 2010 relating to the Notes, and, in each case, deducted in such period in computing Consolidated Net Income; plus

(6) the amount of any non-recurring restructuring charges, reserves or litigation settlement costs deducted in such period in computing Consolidated Net Income, including any one-time, non-recurring costs incurred in connection with the closure and/or consolidation of facilities, and any net loss from discontinued operations; plus

(7) any other non-cash charges, including any write off, write down or impairment (with respect to goodwill or otherwise), reducing Consolidated Net Income for such period (provided that if any such non-cash charges represent an accrual or reserve for potential cash items in any future period, the cash payment in respect thereof in such future period shall be subtracted

-7-

from Consolidated Cash Flow to such extent, and excluding amortization of a prepaid cash item that was paid in a prior period and the reversal of any accrual of, or cash reserve for, anticipated charges in any period where such accrual or reserve is no longer required); plus

(8) any costs or expenses incurred by the Company or a Restricted Subsidiary 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, to the extent that such costs or expenses are funded with cash proceeds contributed to the capital of the Company or net cash proceeds of an issuance of Capital Stock of the Company (other than Disqualified Stock); minus

(9) any non-cash items increasing such Consolidated Net Income for such period, other than the accrual of revenue in the ordinary course of business,

in each case, on a consolidated basis and determined in accordance with GAAP.

“ Consolidated Net Income ” means, with respect to any specified Person for any period, the aggregate of the Net Income of such Person and its Restricted Subsidiaries for such period, on a consolidated basis, determined in accordance with GAAP; provided that:

(1) the Net Income (but not loss) of any Person that is not a Subsidiary, or that is an Unrestricted Subsidiary, or that is accounted for by the equity method of accounting will be included only to the extent of the amount of dividends or distributions paid in cash to the specified Person or a Restricted Subsidiary of the Person;

(2) solely for purposes of determining the amount available for Restricted Payments under clause (iii) of Section 4.07, the Net Income of any Restricted Subsidiary (other than a Subsidiary Guarantor) will be excluded to the extent that the declaration or payment of dividends or similar distributions by that Restricted Subsidiary of that Net Income is not at the date of determination permitted without any prior governmental approval (that has not been obtained) or, directly or indirectly, by operation of the terms of its charter or any agreement, instrument, judgment, decree, order, rule or governmental regulation applicable to that Restricted Subsidiary or its stockholders; provided that, for the avoidance of doubt, Consolidated Net Income shall be increased in amounts equal to the amounts of cash actually received;

(3) the cumulative effect of a change in accounting principles (including as a result of the adoption of International Financial Reporting Standards) will be excluded;

(4) any fees, expenses and debt issuance costs paid in connection with the issuance of the Notes will be excluded;

(5) any non-cash impairment charges or asset write-off or write-down resulting from the application of Financial Accounting Standards Board Accounting Standards Codification (“ ASC ”) Topic 350 “Intangibles—Goodwill and Other” or ASC Topic 360 “Property, Plant and Equipment,” and the amortization of intangibles arising pursuant to ASC Topic 805 “Business Combinations” or any related subsequent Statement of Financial Accounting Standards will be excluded;

(6) the Net Income from any disposed or discontinued operations or any net gains or losses on disposed or discontinued operations, on an after-tax basis, will be excluded;

-8-

(7) non-cash compensation expense incurred with any issuance of equity interests to an employee of such Person or any Restricted Subsidiary will be excluded;

(8) non-cash gains, losses, income and expenses resulting from fair value accounting required by ASC Topic 815 “Derivatives and Hedging” or any related subsequent Statement of Financial Accounting Standards will be excluded; and

(9) any net unrealized gain or loss (after any offset) resulting from currency translation gains or losses related to currency remeasurements of Indebtedness (including any net gain or loss resulting from obligations under Hedging Obligations for currency exchange risk) and any foreign currency translation gains or losses will be excluded.

“ Consolidated Secured Debt Ratio ” means, as of any date of determination, the ratio of (1) all of the Consolidated Total Indebtedness of the Company to the extent that it is secured by Liens as of the end of the most recent fiscal period for which financial statements of the Company are publicly available immediately preceding the date on which such event for which such calculation is being made shall occur to (2) Consolidated Cash Flow of the Company for the most recently ended four full fiscal quarters for which financial statements of the Company are publicly available immediately preceding the date on which such event for which such calculation is being made shall occur, in each case with such pro forma adjustments to Consolidated Total Indebtedness and Consolidated Cash Flow as are appropriate and consistent with the pro forma adjustment provisions set forth in the definition of Fixed Charge Coverage Ratio.

“ Consolidated Tangible Assets ” means, as of any date of determination, the total assets less the total intangible assets (including, without limitation, goodwill), in each case as shown on the most recent quarterly or annual (as the case may be) consolidated balance sheet of the Company and its Restricted Subsidiaries, determined on a consolidated basis in accordance with GAAP and, in the determination relating to the incurrence of Indebtedness, on a pro forma basis including any property or assets being acquired in connection therewith.

“ Consolidated Total Assets ” means the total consolidated assets of the Company and its Restricted Subsidiaries as shown on the most recent quarterly or annual (as the case may be) consolidated balance sheet of the Company.

“ Consolidated Total Indebtedness ” means, as of any date of determination, an amount equal to the sum of (1) the aggregate amount of all outstanding Indebtedness of the Company and its Restricted Subsidiaries on a consolidated basis consisting of Indebtedness for borrowed money, Capital Lease Obligations and debt obligations evidenced by promissory notes and similar instruments and (2) the aggregate amount of all of the Company’s outstanding Disqualified Stock on a consolidated basis, with the amount of such Disqualified Stock equal to the greater of its voluntary or involuntary liquidation preference and maximum fixed repurchase price, in each case determined on a consolidated basis in accordance with GAAP. For purposes hereof, the “maximum fixed repurchase price” of any Disqualified Stock that does not have a fixed repurchase price shall be calculated in accordance with the terms of such Disqualified Stock as if such Disqualified Stock were purchased on the date on which Consolidated Total Indebtedness shall be required to be determined pursuant to this Indenture, and if such price is based upon, or measured by, the fair market value of such Disqualified Stock, such fair market value shall be determined reasonably and in good faith by the Company.

“ Credit Agreement ” means that certain Amended and Restated Multicurrency Credit Agreement, dated as of July 12, 2007, as amended to date, by and among the Company and the guarantors, agents and lenders from time to time party thereto, including any related notes, letters of credit, guarantees, security

-9-

and collateral documents, instruments and agreements executed in connection therewith, and in each case as amended, modified, supplemented, renewed, refunded, replaced, restructured, restated or refinanced in whole or in part from time to time (including any agreement to extend the maturity thereof, increase the amount of available borrowings thereunder ( provided that such increase is permitted by Section 4.09 hereof) and/or add borrowers or guarantors), in each case with respect to such agreement or any successor or replacement agreement and whether under the same or any other agent, lender, group of lenders, purchasers or debt holders.

“ Credit Facilities ” means one or more credit facilities or agreements (including, without limitation, the Credit Agreement and any Qualified Receivables Transaction) or commercial paper facilities or indentures, in each case with investment or commercial banks or other institutional lenders providing for, or acting as initial purchasers of, Indebtedness constituting revolving credit loans, term loans, notes, debentures, securities, 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 bankers’ acceptances, in each case, as amended, restated, modified, renewed, refunded, replaced, restructured, restated or refinanced (including any agreement to extend the maturity thereof and adding additional borrowers or guarantors) in whole or in part from time to time and including increasing the amount of available borrowings thereunder; provided that such increase is permitted by Section 4.09.

“ 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.

“ Designated Non-cash Consideration ” means the Fair Market Value of non-cash consideration received by the Company or a Restricted Subsidiary in connection with an Asset Sale that is so designated as Designated Non-cash Consideration pursuant to an Officers’ Certificate delivered by the Company to the Trustee, setting forth the basis of such valuation less the amount of cash or Cash Equivalents received in connection with a subsequent sale of or collection on such Designated Non-cash Consideration.

“ 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 on which the Notes mature; provided that only the portion of such Capital Stock which matures, is required to be redeemed, is so convertible or exchangeable or is so redeemable at the option of the Holder thereof before such date will be deemed to be Disqualified Stock. Notwithstanding the preceding sentence, any Capital Stock that would constitute Disqualified Stock solely because the holders of the Capital Stock have the right to require the Company to repurchase such Capital Stock upon the occurrence of a Change of Control or an Asset Sale will not constitute Disqualified Stock if the terms of such Capital Stock provide that the Company may not repurchase or redeem any such Capital Stock pursuant to such provisions unless such repurchase or redemption complies with Section 4.07.

“ Domestic Subsidiary ” means any Subsidiary of the Company that was formed under the laws of the United States or any state of the United States or the District of Columbia.

“ Eligible Bank ” means (a) any lender party to the Credit Agreement and (b) a bank or trust company that (i) is licensed, chartered or organized and existing under the laws of the United States of America or any state, territory, province or possession thereof, (ii) as of the time of the making or acquisition of an Investment in such bank or trust company, has combined capital and surplus in excess of $500.0 million and (iii) the senior Indebtedness for borrowed money of which is rated at least “A-2” by Moody’s or at least “A” by Standard & Poor’s.

-10-

“ Equity Interests ” means Capital Stock and all warrants, options or other rights to acquire Capital Stock (but excluding any debt security that is convertible into, or exchangeable for, Capital Stock).

“ Euroclear ” means Euroclear Bank, S.A./N.V., as operator of the Euroclear systems, and any successor thereto.

“ Existing Indebtedness ” means Indebtedness of the Company and its Subsidiaries (other than Indebtedness under the Credit Agreement) in existence on the Issue Date (including available but undrawn commitments to extend Indebtedness to the Company and its Subsidiaries).

“ Fair Market Value ” means, with respect to the consideration received or paid in any transaction or series of transactions or any investment, asset or other property, as the case may be, the fair market value thereof as determined in good faith by the Company. In the case of a transaction between the Company or a Restricted Subsidiary, on the one hand, and a Receivable Subsidiary, on the other hand, if the Company determines in its sole discretion that such determination is appropriate, a determination as to Fair Market Value may be made at the commencement of the transaction and be applicable to all dealings between the Receivable Subsidiary and the Company or such Restricted Subsidiary during the course of such transaction.

“ Fixed Charge Coverage Ratio ” means, with respect to any specified Person for any period, the ratio of the Consolidated Cash Flow of such Person and its Restricted Subsidiaries for such period to the Fixed Charges of such Person and its Restricted Subsidiaries for such period. In the event that the specified Person or any of its Restricted Subsidiaries incurs, assumes, Guarantees, repays, repurchases or redeems any Indebtedness (other than ordinary working capital borrowings) or issues, repurchases or redeems preferred stock subsequent to the commencement of the period for which the Fixed Charge Coverage Ratio is being calculated and on or prior to the date on which the event for which the calculation of the Fixed Charge Coverage Ratio is made (the “ Calculation Date ”), then the Fixed Charge Coverage Ratio will be calculated giving pro forma effect to such incurrence, assumption, Guarantee, repayment, repurchase or redemption of Indebtedness, or such issuance, repurchase or redemption of preferred stock, and the use of the proceeds therefrom as if the same had occurred at the beginning of the applicable four-quarter reference period; provided , however , that the Fixed Charges of such Person attributable to interest on any Indebtedness under a revolving credit facility computed on a pro forma basis will be computed based on the average daily balance of such Indebtedness during the four-quarter reference period and using the interest rate in effect at the end of such period.

In addition, for purposes of calculating the Fixed Charge Coverage Ratio:

(1) “Consolidated Cash Flow” and “Fixed Charges” shall be calculated after giving effect to the elimination or reduction of the cost of any compensation, remuneration or other benefit paid or provided to any employee, consultant, Affiliate or equity owner of the entity involved in any Asset Acquisition to the extent such costs are eliminated or reduced (or public announcement has been made of the intent to eliminate or reduce such costs) prior to the date of such calculation and not replaced;

(2) Asset Acquisitions that have been made by the specified Person or any of its Restricted Subsidiaries, including through mergers or consolidations and including any related financing transactions, during the four-quarter reference period or subsequent to such reference period and on or prior to the Calculation Date will be given pro forma effect (calculated in accordance with Regulation S-X promulgated under the Securities Act) as if they had occurred on the first day of the four-quarter reference period;

-11-

(3) the Consolidated Cash Flow attributable to discontinued operations, as determined in accordance with GAAP, and operations or businesses disposed of prior to the Calculation Date (including in any Asset Sale), will be excluded; and

(4) the Fixed Charges attributable to discontinued operations, as determined in accordance with GAAP, and operations or businesses disposed of prior to the Calculation Date (including in any Asset Sale), will be excluded, but only to the extent that the obligations giving rise to such Fixed Charges will not be obligations of the specified Person or any of its Restricted Subsidiaries following the Calculation Date;

provided that whenever pro forma effect is to be given to an acquisition or a disposition, the amount of income or earnings related thereto (including the incurrence of any Indebtedness and any pro forma expense and cost reductions that have occurred or are reasonably expected to occur, regardless of whether those expense and cost reductions could then be reflected in pro forma financial statements in accordance with Regulation S-X promulgated under the Securities Act or any regulation or policy of the SEC related thereto) shall be reasonably determined in good faith by one or more of the Company’s responsible senior financial or accounting officers.

“ Fixed Charges ” means, with respect to any specified Person for any period, the sum, without duplication, of:

(1) consolidated interest expense of such Person and its Restricted Subsidiaries for such period, whether paid or accrued and whether or not capitalized (including, without limitation, amortization of debt issuance costs and original issue discount, non-cash interest payments, the interest component of any deferred payment obligations, the interest component of all payments associated with Capital Lease Obligations, imputed interest with respect to Attributable Debt, commissions, discounts and other fees and charges incurred in respect of letter of credit or bankers’ acceptance financings, and net of the effect of all payments made or received pursuant to Hedging Obligations), to the extent that any such expense was deducted in computing such Consolidated Net Income; plus

(2) any interest expense on Indebtedness of another Person to the extent that is Guaranteed by such Person or one of its Restricted Subsidiaries or secured by a Lien on assets of such Person or one of its Restricted Subsidiaries, whether or not such Guarantee or Lien is called upon; plus

(3) the product of (a) all dividends and other distributions paid or accrued during such period in respect of Disqualified Stock of such Person and its Restricted Subsidiaries (other than dividends paid in Capital Stock other than Disqualified Stock), times (b) a fraction, the numerator of which is one and the denominator of which is one minus the then current combined federal, state and local statutory tax rate of such Person, expressed as a decimal, in each case on a consolidated basis and in accordance with GAAP.

“ GAAP ” means generally accepted accounting principles in the United States in effect from time to time, which may include International Financial Reporting Standards as in effect from time to time; provided , however , that, for purposes of this Indenture, the determination of whether a lease constitutes a capital lease or an operating lease, and whether obligations arising under a lease are required to be capitalized on the balance sheet of the lessee thereunder, shall be determined by reference to GAAP as in effect on the Issue Date. The Company may, however, on any date elect to establish that GAAP shall mean GAAP as in effect on such date (except with respect to leases, which shall in all cases be subject to the proviso in the immediately preceding sentence) by giving notice of such election to the Trustee.

-12-

“ Government Securities ” means securities that are:

(1) direct obligations of the United States of America for the timely payment of which its full faith and credit is pledged; or

(2) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States of America the timely payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America, which, in either case, are not callable or redeemable at the option of the issuers thereof, and shall also include a depository receipt issued by a bank (as defined in Section 3(a)(2) of the Securities Act), as custodian with respect to any such Government Securities or a specific payment of principal of or interest on any such Government Securities held by such custodian for the account of the holder of such depository receipt; provided , however , 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 Securities or the specific payment of principal of or interest on the Government Securities evidenced by such depository receipt.

“ Group ” has the meaning set forth in the definition of “Change of Control.”

“ Guarantee ” means a guarantee other than by endorsement of negotiable instruments for collection in the ordinary course of business, 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.

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

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

(2) other agreements or arrangements designed to protect such Person against fluctuations in interest rates;

(3) foreign exchange contracts, currency swap agreements or other agreements or arrangements designed to protect such Person against fluctuations in currency values; and

(4) swap agreements or other agreements or arrangements designed to protect such Person against fluctuations in prices of commodities, materials and/or other products used in the business of such Person or any of its Subsidiaries.

“ Holder ” means a Person in whose name a Note is registered.

“ Indebtedness ” means, with respect to any specified Person, any indebtedness of such Person (excluding indebtedness payable to the Company or any of its Subsidiaries), whether or not contingent, but excluding in any case any obligation of the type described in clause (5) below that constitutes an accrued expense, trade payable or current liability:

(1) in respect of borrowed money;

-13-

(2) evidenced by bonds, notes, debentures or similar instruments or letters of credit (without double counting reimbursement obligations in respect thereof);

(3) constituting reimbursement obligations of such Person with respect to letters of credit, bankers’ acceptances or similar facilities (excluding obligations in respect of letters of credit or bankers’ acceptances issued in respect of trade payables) issued for the account of such Person; provided that such obligations shall not constitute Indebtedness except to the extent drawn and not repaid within five Business Days;

(4) representing Capital Lease Obligations;

(5) representing the balance deferred and unpaid of the purchase price of any property; or

(6) representing any Hedging Obligations,

if and to the extent any of the preceding items (other than letters of credit and Hedging Obligations) would appear as a liability upon a balance sheet of the specified Person prepared in accordance with GAAP. In addition, the term “Indebtedness” includes all Indebtedness of others secured by a Lien on any asset of the specified Person (whether or not such Indebtedness is assumed by the specified Person) and, to the extent not otherwise included, the Guarantee by the specified Person of any Indebtedness of any other Person.

The amount of any Indebtedness outstanding as of any date will be:

(1) the accreted value of the Indebtedness, in the case of any Indebtedness issued with original issue discount;

(2) the net amount payable (after giving effect to permitted set-offs) if the Hedging Obligations were terminated on such date due to a default of such Person, in the case of any Indebtedness described in clause (6) above;

(3) the stated or determinable amount of or, if not stated or if indeterminable, the maximum reasonably anticipated liability under the Guarantee, in the case of Guarantees of any Indebtedness of any other Person;

(4) the amount of any Non-recourse Debt outstanding as of any date, to the extent such Non-recourse Debt is secured, will be the lesser of (a) the amount of the obligations secured and (b) the Fair Market Value of any pledged assets, in the case of such Indebtedness of others secured by a Lien on the assets of a Person; and

(5) the principal amount of the Indebtedness, together with any interest on the Indebtedness that is more than 30 days past due.

The amount of Indebtedness of the Company and its Subsidiaries will be calculated without duplication of Guarantees by the Company or its Subsidiaries in respect thereof.

“ Indirect Participant ” means a Person who holds a beneficial interest in a Global Security through a Participant.

-14-

“ Initial Notes ” means $225,000,000 in aggregate principal amount of Notes issued under this Indenture on the Issue Date.

“ Interest Payment Date ” means, for so long as the Notes are outstanding, June 15 and December 15 of each year, commencing June 15, 2011, or if any such day is not a Business Day, the next succeeding Business Day.

“ Investment Grade Rating ” means a rating equal to or higher than Baa3 (or the equivalent) by Moody’s and BBB- (or the equivalent) by Standard & Poor’s, or an equivalent rating by any other Rating Agency.

“ Investments ” means, with respect to any Person, all direct or indirect investments by such Person in other Persons (including Affiliates) in the form of loans or other extensions of credit (including Guarantees), advances, capital contributions (by means of any transfer of cash or other property to others or any payment for property or services for the account or use of others), purchases or other acquisitions for consideration of Indebtedness, Equity Interests or other securities, together with all items that are or would be classified as investments on a balance sheet prepared in accordance with GAAP. In no event will the funding of a pension, defined benefit or other postretirement benefit plan or a guarantee of an operating lease or an ordinary course contract for the sale of goods and services of the Company or any Restricted Subsidiary be deemed an Investment.

“ Issue Date ” means the date on which the Notes are initially issued.

“ Lien ” means, with respect to any asset, any mortgage, lien, pledge, charge or security interest in respect of such asset, whether or not filed, recorded or otherwise perfected under applicable law, including any conditional sale or other title retention agreement and any capital lease in the nature thereof.

“ Moody’s ” means Moody’s Investors Service, Inc. and any successor to its rating business.

“ Net Income ” means, with respect to any specified Person, the net income (loss) of such Person, determined in accordance with GAAP and before any reduction in respect of preferred stock dividends, excluding, however:

(1) any gain or loss, together with any related provision for taxes on such gain or loss and net of fees and expenses relating to the transaction giving rise thereto, realized in connection with: (a) any Asset Sale or (b) the disposition of any securities by such Person or any of its Restricted Subsidiaries or the early extinguishment or conversion of any Indebtedness of such Person or any of its Restricted Subsidiaries;

(2) any extraordinary gain, loss, income, expenses or charges (net of fees and expenses relating to the transaction giving rise thereto), together with any related provision for taxes; and

(3) the portion of such net income attributable to non-controlling interests of Subsidiaries.

“ Net Proceeds ” means, with respect to Asset Sales of any Person, cash received, net of: (1) all reasonable out-of-pocket costs and expenses of such Person incurred in connection with such a sale, including, without limitation, all legal, accounting, title and recording tax expenses, commissions and other fees and expenses incurred and all federal, state, foreign and local taxes arising in connection with such an Asset Sale that are paid or required to be accrued as a liability under GAAP by such Person; (2) all

-15-

payments made by such Person on any Indebtedness that is secured by such properties or other assets in accordance with the terms of any Lien upon or with respect to such properties or other assets or that must, by the terms of such Lien or such Indebtedness, or in order to obtain a necessary consent to such transaction or by applicable law, be repaid to any other Person (other than the Company or a Restricted Subsidiary) in connection with such Asset Sale; and (3) all contractually required distributions and other payments made to minority interest holders in Restricted Subsidiaries of such Person as a result of such transaction; provided , however , that: (a) in the event that any consideration for an Asset Sale (which would otherwise constitute Net Proceeds) is required by (I) contract to be held in escrow pending determination of whether a purchase price adjustment will be made or (II) GAAP to be reserved against other liabilities in connection with such Asset Sale, such consideration (or any portion thereof) shall become Net Proceeds only at such time as it is released to such Person from escrow or otherwise; and (b) any non-cash consideration received in connection with any transaction, which is subsequently converted to cash, shall become Net Proceeds only at such time as it is so converted.

“ Non-recourse Debt ” means Indebtedness as to which neither the Company nor any of its Restricted Subsidiaries (a) provides credit support of any kind (including any undertaking, agreement or instrument that would constitute Indebtedness, but excluding in the case of a Receivable Subsidiary any Standard Securitization Undertakings) or (b) is directly or indirectly liable as a guarantor or otherwise (except in the case of a Receivable Subsidiary any Standard Securitization Undertakings).

“ Non-Recourse Receivable Subsidiary Indebtedness ” has the meaning set forth in the definition of “Receivable Subsidiary.”

“ Obligations ” means any principal, premium, interest (including any interest accruing subsequent to the filing of a petition in bankruptcy, reorganization or similar proceeding at the rate provided for in the documentation with respect thereto, whether or not such interest is an allowed claim under applicable state, federal or foreign law), penalties, fees, indemnifications, reimbursements (including reimbursement obligations with respect to letters of credit and banker’s acceptances), damages and other liabilities, and guarantees of payment of such principal, interest, penalties, fees, indemnifications, reimbursements, damages and other liabilities, payable under the documentation governing any Indebtedness.

“ Pari Passu Indebtedness ” means any Indebtedness of the Company or any Subsidiary Guarantor that ranks pari passu in right of payment with the Notes or the Subsidiary Guarantee, as applicable, subject to mandatory preferences under applicable law, including by operation of bankruptcy, insolvency, liquidation or other similar laws of general application.

“ Participant ” means, with respect to the Depository, Euroclear or Clearstream, a Person who has an account with the Depository, Euroclear or Clearstream, respectively, and, with respect to The Depository Trust Company, shall include Euroclear and Clearstream.

“ Permitted Business ” means any business similar in nature to any business conducted by the Company and its Restricted Subsidiaries on the Issue Date and any business reasonably ancillary, incidental, complementary or related to, or a reasonable extension, development or expansion of, the business conducted by the Company and its Restricted Subsidiaries on the Issue Date, in each case as determined in good faith by the Company.

“ Permitted Investments ” means:

(1) any Investment in the Company or in one of its Restricted Subsidiaries;

(2) any Investment in Cash Equivalents;

-16-

(3) loans and advances to employees, directors and officers of the Company and its Restricted Subsidiaries in the ordinary course of business for bona fide business purposes;

(4) any Investment by the Company or any of its Restricted Subsidiaries in a Person, if as a result of such Investment:

(a) such Person becomes one of the Company’s Restricted Subsidiaries; or

(b) such Person is merged, consolidated or amalgamated with or into, or transfers or conveys all or substantially all of its assets to, or is liquidated into, the Company or one of its Restricted Subsidiaries;

(5) any Investment made as a result of the receipt of non-cash consideration from an Asset Sale that was made pursuant to and in compliance with Section 4.10;

(6) any acquisition of assets to the extent in exchange for the issuance of the Equity Interests (other than Disqualified Stock) of the Company;

(7) any Investments received in compromise of obligations incurred in the ordinary course of trade creditors or customers that were incurred in the ordinary course of business, including pursuant to any plan of reorganization or similar arrangement upon the bankruptcy or insolvency of any trade creditor or customer;

(8) Hedging Obligations and other obligations in connection with derivative transactions not prohibited by this Indenture;

(9) Investments in respect of accounts receivable and other extensions of trade credit in the ordinary course of business;

(10) the acquisition of property and assets from suppliers and other vendors in the ordinary course of business;

(11) Investments in respect of prepaid expenses and workers’ compensation, utility, lease and similar deposits, in the ordinary course of business;

(12) Investments in joint ventures and foreign Subsidiaries in the ordinary course of business; and

(13) other Investments in any Person having an aggregate Fair Market Value (measured on the date each such Investment was made and without giving effect to subsequent changes in value, but net of cash repayments and returns received in respect of such Investment), when taken together with all other Investments made pursuant to this clause (13) that are at the time outstanding, not to exceed the greater of (x) $75.0 million and (y) 5.0% of the Company’s Consolidated Total Assets at the time of incurrence thereof.

“ Permitted Liens ” means:

(1) Liens upon the Company’s property or the property of any of the Company’s Restricted Subsidiaries securing (A) Indebtedness under Credit Facilities (and Guarantees thereof) permitted to be incurred pursuant to Section 4.09(b)(i) in an amount not to exceed the greater of (x) the amount permitted to be incurred under Section 4.09(b)(i) and (y) the maximum amount of

-17-

Indebtedness such that the Consolidated Secured Debt Ratio would not be greater than 2.75 to 1.00, determined, in each case, at the time of incurrence of such Indebtedness after giving pro forma effect thereto in a manner consistent with the calculation of the Fixed Charge Coverage Ratio, (B) Hedging Obligations relating to such Indebtedness and permitted under the agreements related to the Credit Facilities permitted to be incurred under this Indenture and (C) fees, expenses and other amounts payable with respect to such Credit Facilities or payable pursuant to cash management agreements or agreements with respect to similar banking services relating to such Credit Facilities and permitted under the agreements related thereto;

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

(3) Liens on property of a Person existing at the time such Person is merged with or into or consolidated with the Company or any of the Company’s Restricted Subsidiaries or becomes a Restricted Subsidiary; provided that such Liens were in existence prior to the contemplation of such transaction and do not extend to any assets of the Company and the Company’s Restricted Subsidiaries other than the property or assets acquired and the proceeds thereof;

(4) Liens on property existing at the time of acquisition of the property by the Company or any of its Subsidiaries (and Liens on the proceeds thereof); provided that such Liens on the acquired property were in existence prior to the contemplation of such acquisition;

(5) Liens to secure the performance of statutory obligations, surety or appeal bonds, performance bonds or other obligations of a like nature;

(6) Liens to secure Indebtedness (including Capital Lease Obligations) permitted by clause (iv) of Section 4.09(b) covering only the assets acquired with such Indebtedness (and other assets that, in the ordinary course of business, are subject to Liens in favor of the same creditor or its Affiliates to secure such type of Indebtedness) plus improvements, accessions, proceeds, dividends or distributions in respect thereof;

(7) Liens existing on the Issue Date and any Liens from time to time securing the Notes and/or the Subsidiary Guarantee;

(8) Liens for taxes, assessments or governmental charges or claims that are not yet delinquent for more than 90 days, that then remain payable without penalty or that are being contested in good faith; provided that any reserve or other appropriate provision as is required in conformity with GAAP has been made therefor;

(9) pledges or deposits (i) in connection with workers’ compensation, unemployment insurance and other types of statutory obligations or the requirements of any official body; (ii) to secure the performance of tenders, bids, surety or performance bonds, leases, purchase, construction, sales or servicing contracts (including utility contracts) and other similar obligations incurred in the ordinary course of business; (iii) to obtain or secure obligations with respect to letters of credit, Guarantees, bonds or other sureties or assurances given in connection with the activities described in clauses (i) and (ii) above, in each case not incurred or made in connection with the borrowing of money, the obtaining of advances or credit or the payment of the deferred purchase price of property or services; or (iv) arising in connection with any attachment unless such Liens shall not be satisfied or discharged or stayed pending appeal within 60 days after the entry thereof or the expiration of any such stay;

-18-

(10) Liens imposed by law, such as carrier’s, supplier’s, workmen’s, warehousemen’s, landlord’s, materialmen’s and mechanic’s Liens and other similar Liens arising in the ordinary course of business in respect of obligations not overdue for a period in excess of 60 days or which are being contested in good faith; provided , however , that any reserve or other appropriate provision as will be required to conform to GAAP will have been made for that reserve or provision;

(11) survey exceptions, encumbrances, easements, rights-of-way, restrictions, minor defects or irregularities in title and other similar charges or encumbrances, or zoning or other similar restrictions as to the use of real properties or Liens incidental to the conduct of business, in each case not interfering in any material respect with the Company’s business or assets and the business or assets of its Subsidiaries taken as a whole;

(12) Liens securing Hedging Obligations and other obligations in connection with derivative transactions so long as the related Indebtedness is permitted to be incurred under this Indenture;

(13) Liens incurred by the Company or any Restricted Subsidiary of the Company’s with respect to obligations that do not exceed $75.0 million at the time of incurrence thereof;

(14) Liens to secure any Refinancing (or successive Refinancings) as a whole, or in part, of any Indebtedness secured by any Lien referred to in the foregoing clauses (3), (4), (6) and (7), to the extent that:

(A) such new Lien is limited to all or part of the same property that secured the original Lien (plus improvements, accessions, proceeds, dividends or distributions in respect thereof) and

(B) the Indebtedness secured by such Lien at such time is not increased to any amount greater than the sum of:

(i) the outstanding principal amount or, if greater, committed amount of the indebtedness secured by Liens described under clause (3), (4), (6) or (7) at the time the original Lien became a Permitted Lien under this Indenture; and

(ii) the amount of any fees and expenses, including premiums and consent fees, related to such Refinancings;

(15) for the avoidance of doubt, other Liens (not securing Indebtedness) incidental to the conduct of the business of the Company or any of its Restricted Subsidiaries, as the case may be, or the ownership of the Company’s or any Restricted Subsidiary’s assets which do not individually or in the aggregate materially adversely affect the value of the Company and its Restricted Subsidiaries taken as a whole or materially impair the operation of the business of the Company and its Restricted Subsidiaries taken as a whole;

(16) licenses of intellectual property granted in the ordinary course of business;

(17) Liens upon specific items of inventory or other goods and proceeds of any Person securing such Person’s obligation in respect of banker’s acceptances issued or created in the ordinary course of business for the account of such Person to facilitate the purchase, shipment or storage of such inventory or other goods;

-19-

(18) Liens (i) that are contractual rights of set-off (A) relating to the establishment of depository relations with banks not given in connection with the issuance of Indebtedness, (B) relating to pooled deposit or sweep accounts of the Company or any of its Restricted Subsidiaries to permit satisfaction of overdraft or similar obligations and other cash management activities incurred in the ordinary course of business of the Company and/or any of its Restricted Subsidiaries or (C) relating to purchase orders and other agreements entered into with customers of the Company or any of its Restricted Subsidiaries in the ordinary course of business, (ii) of a collection bank arising under Section 4-210 of the Uniform Commercial Code on items in the course of collection, (iii) encumbering reasonable customary initial deposits and margin deposits and attaching to commodity trading accounts or other brokerage accounts incurred in the ordinary course of business, and (iv) in favor of banking institutions arising as a matter of law or pursuant to customary account agreements encumbering deposits (including the right of set-off) and which are within the general parameters customary in the banking industry;

(19) Liens securing judgments for the payment of money not constituting an Event of Default;

(20) leases, subleases, licenses or sublicenses granted to others in the ordinary course of business which do not materially interfere with the ordinary conduct of the business of the Company or any Restricted Subsidiary and do not secure any Indebtedness;

(21) any interest or title of an owner of equipment or inventory on loan or consignment to the Company or any of its Restricted Subsidiaries and Liens arising from Uniform Commercial Code financing statement filings regarding operating leases entered into by the Company or any Restricted Subsidiary;

(22) deposits in the ordinary course of business to secure liability to insurance carriers;

(23) options, put and call arrangements, rights of first refusal and similar rights relating to Investments in joint ventures, partnerships and the like permitted to be made under this Indenture;

(24) Liens attaching to earnest money deposits (or equivalent deposits otherwise named) made in connection with proposed acquisitions in an amount not to exceed $25.0 million at any time;

(25) Liens on cash and other deposits or net worth imposed in connection with contracts entered into the ordinary course of business; and

(26) Liens securing revenue bonds exempt from Federal income taxation pursuant to the Internal Revenue Code.

“ Permitted Refinancing Indebtedness ” means any Indebtedness of the Company or any of its Restricted Subsidiaries to the extent that it is issued in exchange for, or the net proceeds of which are used to extend, refinance, renew, replace, defease or refund other Indebtedness of the Company or any of its Restricted Subsidiaries (other than intercompany Indebtedness), to the extent that the principal amount (or accreted value, if applicable) of such Permitted Refinancing Indebtedness does not exceed the principal amount (or accreted value, if applicable) of the Indebtedness extended, refinanced, renewed, replaced, defeased or refunded (plus all accrued interest on the Indebtedness and the amount of all expenses and premiums and consent fees incurred in connection therewith); provided that:

(1) such Permitted Refinancing Indebtedness has a final maturity date later than the final maturity date of, and has a Weighted Average Life to Maturity equal to or greater than the Weighted Average Life to Maturity of, the Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded;

-20-

(2) if the Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded is subordinated in right of payment to the Notes, such Permitted Refinancing Indebtedness is subordinated in right of payment to the Notes on terms at least as favorable to the Holders of Notes as those contained in the documentation governing the Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded; and

(3) such Permitted Refinancing Indebtedness is incurred either by the Company or by the Subsidiary who is the obligor on the Indebtedness being extended, refinanced, renewed, replaced, defeased or refunded.

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

“ Qualified Equity Offering ” means any underwritten public or any private offering of Capital Stock (excluding Disqualified Stock) of the Company.

“ Qualified Receivables Transaction ” means any transaction or series of transactions entered into by the Company or any of its Restricted Subsidiaries pursuant to which the Company or such Restricted Subsidiary transfers to (a) a Receivable Subsidiary (in the case of a transfer by the Company or any of its Restricted Subsidiaries) or (b) any other Person (in the case of a transfer by a Receivable Subsidiary), or grants a security interest in, any accounts receivable or other financial assets (whether now existing or arising in the future) of the Company or any of its Restricted Subsidiaries, and any assets related thereto, including, without limitation, all collateral securing such accounts receivable or other financial assets, all contracts and all Guarantees or other obligations in respect of such accounts receivable or other financial assets, proceeds of such accounts receivable or other financial assets and other assets which are customarily transferred or in respect of which security interests are customarily granted in connection with an accounts receivable or other financial asset financing transaction; provided such transaction is on market terms as determined in good faith by the Company at the time the Company or such Restricted Subsidiary enters into such transaction.

“ Rating Agency ” means Standard & Poor’s and Moody’s or, if Standard & Poor’s or Moody’s or both shall not make a rating on the Notes publicly available, a nationally recognized statistical rating agency or agencies, as the case may be, selected by the Company (as certified by a resolution of the Board of Directors of the Company) which shall be substituted for Standard & Poor’s or Moody’s or both, as the case may be.

“ Receivable Subsidiary ” means a Subsidiary (other than a Subsidiary Guarantor) that engages in no activities other than in connection with the financing of receivables and other financial assets and that is designated by the Board of Directors of the Company (as provided below) as a Receivable Subsidiary (a) no portion of the Indebtedness or any other Obligations (contingent or otherwise) of which (i) is guaranteed by the Company or any of its Restricted Subsidiaries (excluding Guarantees of obligations (other than the principal of, and interest on, Indebtedness) pursuant to Standard Securitization Undertakings), (ii) is recourse to or obligates the Company or any of its Restricted Subsidiaries in any way other than pursuant to Standard Securitization Undertakings or (iii) subjects any property or asset of the Company or any of its Restricted Subsidiaries, contingently or otherwise, to the satisfaction thereof, other than pursuant to Standard Securitization Undertakings (such Indebtedness and Obligations meeting the requirements

-21-

of the foregoing clause (a), “ Non-Recourse Receivable Subsidiary Indebtedness ”); (b) with which neither the Company nor any of its Restricted Subsidiaries has any material contract, agreement, arrangement or understanding (except in connection with a Qualified Receivables Transaction) other than on terms taken as a whole not materially less favorable to the Company or such Restricted Subsidiary than those that might be obtained at the time from Persons that are not Affiliates of the Company, other than fees, expenses and indemnities payable in the ordinary course of business in connection with servicing accounts receivable, and (c) to which neither the Company nor any of its Restricted Subsidiaries has any obligation to maintain or preserve such entity’s financial condition or cause such entity to achieve a certain level of operating results. Any such designation by the Board of Directors of the Company shall be evidenced to the Trustee by filing with the Trustee a certified copy of the Board Resolution giving effect to such designation and an Officers’ Certificate in the form required under Section 10.04 of the Base Indenture certifying that such designation complied with the foregoing conditions.

“ Refinance ” means, in respect of any Indebtedness, to refinance, extend, renew, refund, repay, prepay, redeem, defease or retire, or to issue other Indebtedness in exchange or replacement for, such Indebtedness, including, in any such case from time to time, after the discharge of the Indebtedness being Refinanced. “ Refinanced ” and “ Refinancing ” shall have correlative meanings.

“ Related Business Assets ” means assets (other than cash or Cash Equivalents) used or useful in a Permitted Business, provided that any assets received by the Company or a Restricted Subsidiary in exchange for assets transferred by the Company or a Restricted Subsidiary shall not be deemed to be Related Business Assets if they consist of securities of a Person, unless upon receipt of the securities of such Person, such Person would become a Restricted Subsidiary.

“ Replacement Assets ” means any properties or assets used or useful in a Permitted Business.

“ Restricted Investment ” means an Investment other than a Permitted Investment.

“ Restricted Subsidiary ” of a Person means any Subsidiary of the referent Person that is not an Unrestricted Subsidiary.

“ SEC ” means the Securities and Exchange Commission.

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

“ Senior Debt ” means:

(1) all Indebtedness of the Company or of any Subsidiary Guarantor outstanding under Credit Facilities and all Hedging Obligations with respect thereto;

(2) any other Indebtedness of the Company or of any Subsidiary Guarantor permitted to be incurred under the terms of this Indenture, unless the instrument under which such Indebtedness is incurred expressly provides that it is subordinated in right of payment to the Notes or the Subsidiary Guarantee; and

(3) all Obligations with respect to the items listed in the preceding clauses (1) and (2).

Notwithstanding anything to the contrary in the preceding, Senior Debt will not include:

(1) any liability for federal, state, local or other taxes owed or owing by the Company;

-22-

(2) any Indebtedness of the Company to any of its Subsidiaries or other Affiliates (other than Credit Facilities under which an Affiliate is a lender);

(3) any trade payables; or

(4) the portion of any Indebtedness that is incurred in violation of this Indenture.

“ Significant Domestic Subsidiary ” means any Significant Subsidiary of the Company which is a Domestic Subsidiary.

“ Significant Subsidiary ” means any Subsidiary that would be a “significant subsidiary” as defined in Article 1, Rule 1-02 of Regulation S-X, promulgated pursuant to the Securities Act, as in effect on the Issue Date, but shall not include any Unrestricted Subsidiary.

“ Standard & Poor’s ” means Standard & Poor’s, a division of The McGraw-Hill Companies, Inc., and any successor to its rating business.

“ Standard Securitization Undertakings ” means representations, warranties, covenants and indemnities entered into by the Company or any Restricted Subsidiary which are reasonably customary in an accounts receivable or other financial asset securitization transaction as determined in good faith by the Company, including Guarantees by the Company or any Restricted Subsidiary of any of the foregoing obligations of the Company or a Restricted Subsidiary.

“ Stated Maturity ” means, with respect to any installment of interest or principal on any series of Indebtedness, the date on which the payment of interest or principal was scheduled to be paid in the original documentation governing such Indebtedness, and will not include any contingent obligations to repay, redeem or repurchase any such interest or principal prior to the date originally scheduled for the payment thereof.

“ Subordinated Indebtedness ” means any Indebtedness (whether outstanding on the Issue Date or thereafter incurred) that is subordinated or junior in right of payment to the Notes pursuant to a written agreement, executed by the Person to whom such Indebtedness is owed, to that effect.

“ Subsidiary ” means, with respect to any specified Person:

(1) any corporation, association or other business entity of which more than 50% of the total voting power of shares of Capital Stock entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers or trustees of the corporation, association or other business entity is at the time owned or controlled, directly or through a Subsidiary, by that Person or one or more of the other Subsidiaries of that Person (or a combination thereof); and

(2) any partnership (a) the sole general partner or the managing general partner of which is such Person or a Subsidiary of such Person or (b) the only general partners of which are that Person or one or more Subsidiaries of that Person (or any combination thereof).

“ Subsidiary Guarantee ” means the Guarantee of the Company’s Obligations with respect to the Notes on the terms set forth in this Indenture by each of the Subsidiary Guarantors.

-23-

“ Subsidiary Guarantors ” means all of the Company’s current Significant Domestic Subsidiaries and any future Domestic Subsidiary that executes and delivers to the Trustee a supplemental indenture in accordance with the provisions of Section 4.15, and their respective successors and assigns, in each case subject to release in accordance with Section 10.05.

“ Treasury Rate ” means, as of the applicable Redemption Date, the yield to maturity as of such Redemption Date of United States Treasury securities with a constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available at least two Business Days prior to such Redemption Date (or, if such Statistical Release is no longer published, any publicly available source of similar market data)) most nearly equal to the period from such Redemption Date to the scheduled maturity date of the Notes; provided that if the period from such Redemption Date to the scheduled maturity date of the Notes is less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year will be used.

“ Trust Indenture Act ” means the Trust Indenture Act of 1939, as amended (15 U.S. Code §§ 77aaa-77bbbb) as in effect on the date of this Supplemental Indenture.

“ Unrestricted Subsidiary ” means any Subsidiary of the Company (or any successor to any of them) that is designated by the Board of Directors of the Company as an Unrestricted Subsidiary pursuant to a Board Resolution, but only to the extent that such Subsidiary:

(1) has no Indebtedness other than Non-recourse Debt;

(2) is not party to any agreement, contract, arrangement or understanding with the Company or any Restricted Subsidiary of the Company’s unless the terms of any such agreement, contract, arrangement or understanding are no less favorable to the Company or such Restricted Subsidiary in any material respect than those that would be obtained at the time from Persons who are not Affiliates of the Company;

(3) is a Person with respect to which neither the Company nor any of its Restricted Subsidiaries has any direct or indirect obligation (a) to subscribe for additional Equity Interests or (b) to maintain or preserve such Person’s financial condition or to cause such Person to achieve any specified levels of operating results; and

(4) has not Guaranteed or otherwise directly or indirectly provided credit support for any Indebtedness of the Company or any of the Company’s Restricted Subsidiaries.

Any designation of a Subsidiary of the Company as an Unrestricted Subsidiary will be evidenced to the Trustee by filing with the Trustee a certified copy of the resolution of the Board of Directors of the Company giving effect to such designation and an Officers’ Certificate certifying that such designation complied with the preceding conditions and was permitted by Section 4.07. If, at any time, any Unrestricted Subsidiary would fail to meet the preceding requirements as an Unrestricted Subsidiary, it will thereafter cease to be an Unrestricted Subsidiary for purposes of this Indenture and any Indebtedness of such Subsidiary will be deemed to be incurred by a Restricted Subsidiary of the Company as of such date and, if such Indebtedness is not permitted to be incurred as of such date under Section 4.09, the Company will be in default of Section 4.09. The Board of Directors of the Company may at any time designate any Unrestricted Subsidiary to be a Restricted Subsidiary; provided that such designation will be deemed to be an incurrence of Indebtedness by one of the Company’s Restricted Subsidiaries of any outstanding Indebtedness of such Unrestricted Subsidiary and such designation will only be permitted if (1) such Indebtedness is permitted under Section 4.09, calculated on a pro forma basis as if such designation had

-24-

occurred at the beginning of the four-quarter reference period; (2) no Default or Event of Default would be in existence upon giving effect to such designation; and (3) such Subsidiary executes and delivers to the Trustee a supplemental indenture providing for such Subsidiary to become a Subsidiary Guarantor.

“ 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.

“ Weighted Average Life to Maturity ” means, when applied to any Indebtedness at any date, the number of years obtained by dividing:

(1) the sum of the products obtained by multiplying (a) the amount of each then remaining installment, sinking fund, serial maturity or other required payments of principal, including payment at final maturity, in respect of the Indebtedness, by (b) the number of years (calculated to the nearest one-twelfth) that will elapse between such date and the making of such payment; by

-25-

SECTION 1.04. Incorporation by Reference of Trust Indenture Act .

(a) Whenever this Supplemental Indenture refers to a provision of the Trust Indenture Act, the provision is incorporated by reference in and made a part of this Supplemental Indenture.

(b) The following Trust Indenture Act terms used in this Supplemental Indenture have the following meanings:

“indenture securities” means the Notes and the Subsidiary Guarantee;

“indenture security holder” means a Holder;

“indenture to be qualified” means this Indenture;

“indenture trustee” or “institutional trustee” means the Trustee; and

“obligor” on the Notes means the Company, each Subsidiary Guarantor and any successor obligor upon the Notes or the Subsidiary Guarantee.

(c) All other terms used in this Supplemental Indenture that are defined by the Trust Indenture Act, defined by Trust Indenture Act reference to another statute or defined by SEC rule under the Trust Indenture Act and not otherwise defined herein have the meanings so assigned to them either in the Trust Indenture Act, by another statute or SEC rule, as applicable.

SECTION 1.05. Rules of Construction .

Unless the context otherwise requires:

(a) a term has the meaning assigned to it;

(b) an accounting term not otherwise defined herein has the meaning assigned to it in accordance with GAAP;

(c) “or” is not exclusive;

(d) words in the singular include the plural, and in the plural include the singular;

(e) all references in this instrument to “Articles,” “Sections” and other subdivisions are to the designated Articles, Sections and subdivisions of this instrument as originally executed;

-26-

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

(g) “including” means “including without limitation”;

(h) provisions apply to successive events and transactions; and

(i) references to sections of or rules under the Securities Act, the Exchange Act or the Trust Indenture Act shall be deemed to include substitute, replacement or successor sections or rules adopted by the Commission from time to time thereunder.

ARTICLE 2

THE NOTES

Pursuant to Section 2.01 of the Base Indenture, the provisions of this Article 2 establish the form of the Notes under this Supplemental Indenture.

SECTION 2.01. Form and Dating .

(a) General . The Notes and the Trustee’s certificate of authentication shall be substantially in the form of Exhibit A hereto, which is hereby incorporated in and expressly made part of this Supplemental Indenture. The Notes may have notations, legends or endorsements required by law, stock exchange rule or usage in addition to those set forth on Exhibit A . Each Note shall be dated the date of its authentication. The terms and provisions contained in the Notes shall constitute, and are hereby expressly made, a part of this Supplemental Indenture and the Company, the Guarantor and the Trustee, by their execution and delivery of this Supplemental Indenture, expressly agree to such terms and provisions and to be bound thereby. However, to the extent any provision of any Note conflicts with the express provisions of this Supplemental Indenture, the provisions of this Supplemental Indenture shall govern and be controlling.

(b) Book-Entry Provisions . This Section 2.01(b) shall only apply to Global Securities deposited with the Trustee, as custodian for the Depository. Participants and Indirect Participants shall have no rights under this Supplemental Indenture with respect to any Global Security held on their behalf by the Depository or by the Trustee as the custodian for the Depository or under such Global Security, and the Depository shall be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner of such Global Security 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 Depository or impair, as between the Depository and its Participants or Indirect Participants, the Applicable Procedures or the operation of customary practices of the Depository governing the exercise of the rights of a holder of a beneficial interest in any Global Security.

(c) Certificated Notes . Except as otherwise provided in this Indenture, owners of beneficial interests in Global Securities will not be entitled to receive physical delivery of certificated Notes.

SECTION 2.02. Depository, Registrar and Paying Agent .

(a) The Company initially appoints The Depository Trust Company (“ DTC ”) to act as Depository with respect to the Global Securities.

-27-

(b) The Company initially appoints the Trustee to act as the Registrar and Paying Agent with respect to the Notes, and the Trustee hereby initially agrees so to act.

SECTION 2.03. Additional Notes .

The Company will be entitled, subject to its compliance with Section 4.09, to issue Additional Notes under this Supplemental Indenture in an unlimited aggregate principal amount which shall have identical terms as the Initial Notes, other than with respect to the principal amount, date of issuance and issue price and first payment of interest. The Initial Notes and any Additional Notes shall be treated as a single class for all purposes under this Supplemental Indenture, including, without limitation, waivers, amendments, redemptions and offers to purchase.

With respect to any Additional Notes, the Company will set forth in a resolution of its Board of Directors and an Officers’ Certificate, a copy of each which shall be delivered to the Trustee, the following information:

(a) the aggregate principal amount of such Additional Notes to be authenticated and delivered pursuant to this Supplemental Indenture; and

(b) the issue price, the issue date, the first interest payment date and the CUSIP number(s) of such Additional Notes.

ARTICLE 3

REDEMPTION AND PREPAYMENT

SECTION 3.01. Notices to Trustee .