Note Purchase Agreement, dated as of May 9, 2014, among Parsons Corporation and the purchasers party thereto, and the forms of Senior Notes

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PARSONS CORPORATION

100 WEST WALNUT STREET

PASADENA, CALIFORNIA 91124

4.44% SENIOR NOTES, SERIES A, DUE JULY 15, 2021

4.98% SENIOR NOTES, SERIES B, DUE JULY 15, 2024

5.13% Senior Notes, Series C, due July 15, 2026

5.38% Senior Notes, Series D, due July 16, 2029

May 9, 2014

TO EACH OF THE PURCHASERS LISTED IN

SCHEDULE B HERETO:

Ladies and Gentlemen:

PARSONS CORPORATION, a Delaware corporation (together with any successor thereto that becomes a party hereto pursuant to Section 10.2, the “Company”), agrees with each of the Purchasers as follows:

SECTION 1. AUTHORIZATION OF NOTES.

The Company will authorize the issue and sale of (i) $50,000,000 aggregate principal amount of its 4.44% Senior Notes, Series A, due July 15, 2021 (the “Series A Notes”), (ii) $100,000,000 aggregate principal amount of its 4.98% Senior Notes, Series B, due July 15, 2024 (the “Series B Notes”), (iii) $60,000,000 aggregate principal amount of its 5.13% Senior Notes, Series C, due July 15, 2026 (the “Series C Notes”), and (iv) $40,000,000 aggregate principal amount of its 5.38% Senior Notes, Series D, due July 16, 2029 (the “Series D Notes” and, together with the Series A Notes, the Series B Notes and the Series C Notes, the “Notes”), in each case as amended, restated or otherwise modified from time to time pursuant to Section 17 and including any such notes issued in substitution therefor pursuant to Section 13. The Series A Notes shall be substantially in the form set out in Schedule 1(a). The Series B Notes shall be substantially in the form set out in Schedule 1(b). The Series C Notes shall be substantially in the form set out in Schedule 1(c). The Series D Notes shall be substantially in the form set out in Schedule 1(d). Certain capitalized and other terms used in this Agreement are defined in Schedule A. References to a “Schedule” are references to a Schedule attached to this Agreement unless otherwise specified. References to a “Section” are references to a Section of this Agreement unless otherwise specified.

SECTION 2. SALE AND PURCHASE OF NOTES.

Subject to the terms and conditions of this Agreement, the Company will issue and sell to each Purchaser and each Purchaser will purchase from the Company, at the Closing provided for in Section 3, Notes in the principal amount and in the Series specified opposite such Purchaser’s name in Schedule B at the purchase price of 100% of the principal amount thereof. The Purchasers’ obligations hereunder are several and not joint obligations and no Purchaser shall have any liability to any Person for the performance or non-performance of any obligation by any other Purchaser hereunder.

SECTION 3. CLOSING.

The execution and delivery of this Agreement will be made at the offices of Chapman and Cutler LLP, 111 West Monroe Street, Chicago, IL 60603 on May 9, 2014.

The sale and purchase of the Notes to be purchased by each Purchaser shall occur at the offices of Chapman and Cutler LLP, 111 West Monroe Street, Chicago, IL 60603, at 10:00 a.m., Chicago time, at a closing (the “Closing”) on July 1, 2014 or on such other Business Day thereafter on or prior to July 15, 2014 as may be agreed upon by the Company and the Purchasers. At the Closing the Company will deliver to each Purchaser the Notes to be purchased by such Purchaser in the form of a single Note of each Series to be purchased by such Purchaser (or such greater number of Notes in denominations of at least $500,000, or any integral multiple of $10,000 in excess thereof as such Purchaser may request) dated the date of the Closing and registered in such Purchaser’s name (or in the name of its nominee), against delivery by such Purchaser to the Company or its order of immediately available funds in the amount of the purchase price therefor by wire transfer of immediately available funds for the account of the Company in accordance with the funding instructions provided pursuant to Section 4.10. If at the Closing the Company shall fail to tender such Notes to any Purchaser as provided above in this Section 3, or any of the conditions specified in Section 4 shall not have been fulfilled to such Purchaser’s satisfaction, such Purchaser shall, at its election, be relieved of all further obligations under this Agreement, without thereby waiving any rights such Purchaser may have by reason of any of the conditions specified in Section 4 not having been fulfilled to such Purchaser’s satisfaction or such failure by the Company to tender such Notes.

SECTION 4. CONDITIONS TO CLOSING.

Each Purchaser’s obligation to purchase and pay for the Notes to be sold to such Purchaser at the Closing is subject to the fulfillment to such Purchaser’s satisfaction, prior to or at the Closing, of the following conditions:

Section 4.1. Representations and Warranties. The representations and warranties of the Company in this Agreement shall be correct when made and at the Closing.

Section 4.2. Performance; No Default. The Company shall have performed and complied with all agreements and conditions contained in this Agreement required to be performed or complied with by it prior to or at the Closing and from the date of this Agreement to the Closing assuming that Sections 9 and 10 are applicable from the date of this Agreement. From the date of this Agreement until the Closing, before and after giving effect to the issue and sale of the Notes (and the application of the proceeds thereof as contemplated by Section 5.14), no Default or Event of Default shall have occurred and be continuing. Neither the Company nor any Subsidiary shall have entered into any transaction since the date of the Memorandum that would have been prohibited by Section 10 had such Section applied since such date.

Section 4.3. Compliance Certificates.

(a) Officer’s Certificate. The Company shall have delivered to such Purchaser an Officer’s Certificate, dated the date of the Closing, certifying that the conditions specified in Sections 4.1, 4.2 and 4.9 have been fulfilled.

(b) Secretary’s Certificate. The Company shall have delivered to such Purchaser a certificate of its Secretary or Assistant Secretary, dated the date of the Closing, certifying as to (i) the resolutions attached thereto and other corporate proceedings relating to the authorization, execution and delivery of the Notes and this Agreement and (ii) the Company’s organizational documents as then in effect.

Section 4.4. Opinions of Counsel. Such Purchaser shall have received opinions in form and substance satisfactory to such Purchaser, dated the date of the Closing (a) from Clyde E. Ellis Jr., General Counsel of the Company, and from Chapman and Cutler LLP, special counsel for the Company, covering the matters set forth in Schedules 4.4(a)(1) and 4.4(a)(2), respectively, and covering such other matters incident to the transactions contemplated hereby as such Purchaser or its counsel may reasonably request (and the Company hereby instructs its counsel to deliver such opinions to the Purchasers) and (b) from Foley & Lardner LLP, the Purchasers’ special counsel in connection with such transactions, substantially in the form set forth in Schedule 4.4(b) and covering such other matters incident to such transactions as such Purchaser may reasonably request.

Section 4.5. Purchase Permitted By Applicable Law, Etc. On the date of the Closing such Purchaser’s purchase of Notes shall (a) be permitted by the laws and regulations of each jurisdiction to which such Purchaser is subject, without recourse to provisions (such as section 1405(a)(8) of the New York Insurance Law) permitting limited investments by insurance companies without restriction as to the character of the particular investment, (b) not violate any applicable law or regulation (including, without limitation, Regulation T, U or X of the Board of Governors of the Federal Reserve System) and (c) not subject such Purchaser to any tax, penalty or liability under or pursuant to any applicable law or regulation. If requested by any Purchaser, such Purchaser shall have received an Officer’s Certificate certifying as to such matters of fact as such Purchaser may reasonably specify to enable such Purchaser to determine whether such purchase is so permitted.

Section 4.6. Sale of Other Notes. Contemporaneously with the Closing the Company shall sell to each other Purchaser and each other Purchaser shall purchase the Notes to be purchased by it at the Closing as specified in Schedule B.

Section 4.7. Payment of Special Counsel Fees. Without limiting Section 15.1, the Company shall have paid on or before the Closing the reasonable and documented fees, charges and disbursements of the Purchasers’ special counsel referred to in Section 4.4(b) to the extent reflected in a statement of such counsel rendered to the Company at least one Business Day prior to the Closing.

Section 4.8. Private Placement Number. A Private Placement Number issued by Standard & Poor’s CUSIP Service Bureau (in cooperation with the SVO) shall have been obtained for the Notes of each Series.

Section 4.9. Changes in Corporate Structure. The Company shall not have changed its jurisdiction of incorporation or organization, as applicable, or been a party to any merger or consolidation or succeeded to all or any substantial part of the liabilities of any other entity, at any time following the date of the most recent financial statements referred to in Schedule 5.5.

Section 4.10. Funding Instructions. At least three Business Days prior to the date of the Closing, each Purchaser shall have received written instructions executed by an authorized financial officer of the Company on letterhead of the Company directing the manner of the payment of funds for the purchase of the Notes and setting forth (i) the name of the transferee bank, (ii) such transferee bank’s ABA number and (iii) the account name and number into which the purchase price for the Notes is to be deposited.

Section 4.11. Proceedings and Documents. All corporate and other proceedings in connection with the transactions contemplated by this Agreement and all documents and instruments incident to such transactions shall be satisfactory to such Purchaser and its special counsel, and such Purchaser and its special counsel shall have received all such counterpart originals or certified or other copies of such documents as such Purchaser or such special counsel may reasonably request.

Section 4.12. Subsidiary Guaranties. As to each Subsidiary which on or before the date of Closing has delivered a guaranty pursuant to or is a borrower or an additional or co-obligor under the Credit Agreement, the Company will cause each such Subsidiary to, on the date of Closing, (a) enter into a Subsidiary Guaranty and (b) deliver the following to each Purchaser:

(i) an executed counterpart of such Subsidiary Guaranty;

(ii) a certificate signed by an authorized responsible officer of such Subsidiary containing representations and warranties on behalf of such Subsidiary to the same effect as those contained in Section 4 of the Subsidiary Guaranty attached hereto as Schedule C;

(iii) all such documents as may be reasonably requested by the Purchasers to evidence the due organization, continuing existence and good standing of such Subsidiary and the due authorization by all requisite action on the part of such Subsidiary of the execution and delivery of such Subsidiary Guaranty and the performance by such Subsidiary of its obligations under the Subsidiary Guaranty; and

(iv) an opinion of counsel reasonably satisfactory to the Purchasers covering the matters described in Schedules 4.4(a)(1) and 4.4(a)(2).

Section 4.13. Offeree Letter. Mitsubishi UFJ Securities (USA), Inc. and U.S. Bancorp Investments, Inc. shall have delivered to the Company, its counsel, each of the Purchasers and the Purchasers’ special counsel an offeree letter, in form and substance reasonably satisfactory to the Company and its counsel and each Purchaser, confirming the manner of the offering of the Notes by Mitsubishi UFJ Securities (USA), Inc. and U.S. Bancorp Investments, Inc.

SECTION 5. REPRESENTATIONS AND WARRANTIES OF THE COMPANY.^,

The Company represents and warrants to each Purchaser that:

Section 5.1. Organization; Power and Authority. The Company is a corporation duly organized, validly existing and in good standing under the laws of its jurisdiction of incorporation, and is duly qualified as a foreign corporation and is in good standing in each jurisdiction in which such qualification is required by law, other than those jurisdictions as to which the failure to be so qualified or in good standing could not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. The Company has the corporate power and authority to own or hold under lease the properties it purports to own or hold under lease, to transact the business it transacts and proposes to transact, to execute and deliver this Agreement and the Notes and to perform the provisions hereof and thereof.

Section 5.2. Authorization, Etc. This Agreement and the Notes have been duly authorized by all necessary corporate action on the part of the Company, and this Agreement constitutes, and upon execution and delivery thereof each Note will constitute, a legal, valid and binding obligation of the Company enforceable against the Company in accordance with its terms, except as such enforceability may be limited by (i) applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws affecting the enforcement of creditors’ rights generally and (ii) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law).

Section 5.3. Disclosure. The Company, through its agents, Mitsubishi UFJ Securities (USA), Inc. and U.S. Bancorp Investments, Inc., has delivered to each Purchaser a copy of a Private Placement Memorandum, dated March 2014 (the “Memorandum”), relating to the transactions contemplated hereby. The Memorandum fairly describes, in all material respects, the general nature of the business and principal properties of the Company and its Subsidiaries. This Agreement, the Memorandum, the financial statements listed in Schedule 5.5 and the documents, certificates or other writings delivered to the Purchasers by or on behalf of the Company prior to April 8, 2014 in connection with the transactions contemplated hereby and identified in Schedule 5.3 (this Agreement, the Memorandum and such documents, certificates or other writings and such financial statements delivered to each Purchaser being referred to, collectively, as the “Disclosure Documents”), taken as a whole, do not contain any untrue statement of a material fact or omit to state any material fact necessary to make the statements therein not misleading in light of the circumstances under which they were made. Except as disclosed in the Disclosure Documents, since December 27, 2013, there has been no change in the financial condition, operations, business or properties of the Company or any Subsidiary except changes that could not, individually or in the aggregate, reasonably be

expected to have a Material Adverse Effect. There is no fact known to the Company that could reasonably be expected to have a Material Adverse Effect that has not been set forth herein or in the Disclosure Documents. Notwithstanding the foregoing, the Company makes no representation or warranty as to the accuracy of any forecast or projection contained in the Disclosure Documents, except that such forecasts and projections were based on assumptions which the Company considered reasonable under the circumstances.

Section 5.4. Organization and Ownership of Shares of Subsidiaries; Affiliates. (a) Schedule 5.4 contains (except as noted therein) complete and correct lists of (i) the Company’s Subsidiaries, showing, as to each Subsidiary, the name thereof, the jurisdiction of its organization, and the percentage of shares of each class of its capital stock or similar equity interests outstanding owned by the Company and each other Subsidiary, (ii) the Company’s Affiliates, other than Subsidiaries, and (iii) the Company’s directors and senior officers.

(b) All of the outstanding shares of capital stock or similar equity interests of each Subsidiary shown in Schedule 5.4 as being owned by the Company and its Subsidiaries have been validly issued, are fully paid and non-assessable and are owned by the Company or another Subsidiary free and clear of any Lien that is prohibited by this Agreement.

(c) Each Subsidiary is a corporation or other legal entity duly organized, validly existing and, where applicable, in good standing under the laws of its jurisdiction of organization, and is duly qualified as a foreign corporation or other legal entity and, where applicable, is in good standing in each jurisdiction in which such qualification is required by law, other than those jurisdictions as to which the failure to be so qualified or in good standing could not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. Each such Subsidiary has the corporate or other power and authority to own or hold under lease the properties it purports to own or hold under lease and to transact the business it transacts and proposes to transact.

(d) No Subsidiary is subject to any legal, regulatory, contractual or other restriction (other than the agreements listed on Schedule 5.4 and customary limitations imposed by corporate law or similar statutes) restricting the ability of such Subsidiary to pay dividends out of profits or make any other similar distributions of profits to the Company or any of its Subsidiaries that owns outstanding shares of capital stock or similar equity interests of such Subsidiary.

Section 5.5. Financial Statements; Material Liabilities. The Company has delivered to each Purchaser copies of the consolidated financial statements of the Company and its Subsidiaries listed on Schedule 5.5. All of such consolidated financial statements (including in each case the related schedules and notes) fairly present in all material respects the consolidated financial position of the Company and its Subsidiaries as of the respective dates specified in such Schedule and the consolidated results of their operations and cash flows for the respective periods so specified and have been prepared in accordance with GAAP consistently applied throughout the periods involved except as set forth in the notes thereto (subject, in the case of any interim financial statements, to normal year-end adjustments). The Company and its Subsidiaries do not have any Material liabilities that are not disclosed in the Disclosure Documents.

Section 5.6. Compliance with Laws, Other Instruments, Etc. The execution, delivery and performance by the Company of this Agreement and the Notes will not (i) contravene, result in any breach of, or constitute a default under, or result in the creation of any Lien in respect of any property of the Company or any Subsidiary under, any indenture, mortgage, deed of trust, loan, purchase or credit agreement, lease, corporate charter or by-laws, stockholders agreement or any other agreement or instrument to which the Company or any Subsidiary is bound or by which the Company or any Subsidiary or any of their respective properties may be bound or affected, (ii) conflict with or result in a breach of any of the terms, conditions or provisions of any order, judgment, decree or ruling of any court, arbitrator or Governmental Authority applicable to the Company or any Subsidiary or (iii) violate any provision of any statute or other rule or regulation of any Governmental Authority applicable to the Company or any Subsidiary.

Section 5.7. Governmental Authorizations, Etc. No consent, approval or authorization of, or registration, filing or declaration with, any Governmental Authority is required in connection with the execution, delivery or performance by the Company of this Agreement or the Notes.

Section 5.8. Litigation; Observance of Agreements, Statutes and Orders. (a) Except as disclosed on Schedule 5.8, there are no actions, suits, investigations or proceedings pending or, to the best knowledge of the Company, threatened against or affecting the Company or any Subsidiary or any property of the Company or any Subsidiary in any court or before any arbitrator of any kind or before or by any Governmental Authority that would, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(b) Neither the Company nor any Subsidiary is (i) in default under any agreement or instrument to which it is a party or by which it is bound, (ii) in violation of any order, judgment, decree or ruling of any court, arbitrator or Governmental Authority or (iii) in violation of any applicable law, ordinance, rule or regulation of any Governmental Authority (including, without limitation, Environmental Laws, the USA PATRIOT Act or any of the other laws and regulations that are referred to in Section 5.16), which default or violation would, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

Section 5.9. Taxes. The Company and its Subsidiaries have filed all tax returns that are required to have been filed in any jurisdiction, and have paid all taxes shown to be due and payable on such returns and all other taxes and assessments levied upon them or their properties, assets, income or franchises, to the extent such taxes and assessments have become due and payable and before they have become delinquent, except for any taxes and assessments (i) the amount of which, individually or in the aggregate, is not Material or (ii) the amount, applicability or validity of which is currently being contested in good faith by appropriate proceedings and with respect to which the Company or a Subsidiary, as the case may be, has established adequate reserves in accordance with GAAP. The Company knows of no basis for any other tax or assessment that could, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. The charges, accruals and reserves on the books of the Company and its Subsidiaries in respect of U.S. federal, state or other taxes for all fiscal periods are adequate.

Section 5.10. Title to Property; Leases. The Company and its Subsidiaries have good and sufficient title to their respective properties that individually or in the aggregate are Material, including all such properties reflected in the most recent audited balance sheet referred to in Section 5.5 or purported to have been acquired by the Company or any Subsidiary after such date (except as sold or otherwise disposed of in the ordinary course of business), in each case free and clear of Liens prohibited by this Agreement. All leases that individually or in the aggregate are Material are valid and subsisting and are in full force and effect in all material respects.

Section 5.11. Licenses, Permits, Etc. (a) The Company and its Subsidiaries own or possess all licenses, permits, franchises, authorizations, patents, copyrights, proprietary software, service marks, trademarks and trade names, or rights thereto, that are Material, without known conflict with the rights of others.

(b) To the best knowledge of the Company, no product or service of the Company or any of its Subsidiaries infringes in any material respect any license, permit, franchise, authorization, patent, copyright, proprietary software, service mark, trademark, trade name or other right owned by any other Person.

(c) To the best knowledge of the Company, there is no Material violation by any Person of any right of the Company or any of its Subsidiaries with respect to any patent, copyright, proprietary software, service mark, trademark, trade name or other right owned or used by the Company or any of its Subsidiaries.

Section 5.12. Compliance with ERISA. (a) The Company and each ERISA Affiliate have operated and administered each Plan in compliance with all applicable laws except for such instances of noncompliance as have not resulted in and would not, individually or in the aggregate, reasonably be expected to result in a Material Adverse Effect. Neither the Company nor any ERISA Affiliate has incurred any liability pursuant to Title I or IV of ERISA or the penalty or excise tax provisions of the Code relating to employee benefit plans (as defined in section 3 of ERISA), and no event, transaction or condition has occurred or exists that would, individually or in the aggregate, reasonably be expected to result in the incurrence of any such liability by the Company or any ERISA Affiliate, or in the imposition of any Lien on any of the rights, properties or assets of the Company or any ERISA Affiliate, in either case pursuant to Title I or IV of ERISA or to section 430(k) of the Code or any such penalty or excise tax provisions under the Code or federal law or section 4068 of ERISA or by the granting of a security interest in connection with the amendment of a Plan, other than such liabilities or Liens as would not be individually or in the aggregate Material.

(b) The present value of the aggregate benefit liabilities under each of the Plans (other than Multiemployer Plans), determined as of the end of such Plan’s most recently ended plan year on the basis of the actuarial assumptions specified for funding purposes in such Plan’s most recent actuarial valuation report, did not exceed the aggregate current value of the assets of such Plan allocable to such benefit liabilities. The present value of the accrued benefit liabilities (whether or not vested) under each Non-U.S. Plan that is funded, determined as of the end of the Company’s most recently ended fiscal year on the basis of reasonable actuarial assumptions, did not exceed the current value of the assets of such Non-U.S. Plan allocable to such benefit liabilities by more than $3,500,000. The term “benefit liabilities” has the meaning specified in section 4001 of ERISA and the terms “current value” and “present value” have the meaning specified in section 3 of ERISA.

(c) The Company and its ERISA Affiliates have not incurred (i) withdrawal liabilities (and are not subject to contingent withdrawal liabilities) under section 4201 or 4204 of ERISA in respect of Multiemployer Plans that that individually or in the aggregate are Material or (ii) any obligation in connection with the termination of or withdrawal from any Non-U.S. Plan that is Material.

(d) The expected postretirement benefit obligation (determined as of the last day of the Company’s most recently ended fiscal year in accordance with Financial Accounting Standards Board Accounting Standards Codification Topic 715-60, without regard to liabilities attributable to continuation coverage mandated by section 4980B of the Code) of the Company and its Subsidiaries is not Material.

(e) All Non-U.S. Plans have been established, operated, administered and maintained in compliance with all laws, regulations and orders applicable thereto, except where failure so to comply would not be reasonably expected to have a Material Adverse Effect. All premiums, contributions and any other amounts required by applicable Non-U.S. Plan documents or applicable laws to be paid or accrued by the Company and its Subsidiaries have been paid or accrued as required, except where failure so to pay or accrue would not be reasonably expected to have a Material Adverse Effect.

(f) The execution and delivery of this Agreement and the issuance and sale of the Notes hereunder will not involve any transaction that is subject to the prohibitions of section 406 of ERISA or in connection with which a tax could be imposed pursuant to section 4975(c)(1)(A)-(D) of the Code. The representation by the Company to each Purchaser in the first sentence of this Section 5.12(f) is made in reliance upon and subject to the accuracy of such Purchaser’s representation in Section 6.2 as to the sources of the funds to be used to pay the purchase price of the Notes to be purchased by such Purchaser.

Section 5.13. Private Offering by the Company. Neither the Company nor anyone authorized to act on its behalf has offered the Notes or any similar Securities for sale to, or solicited any offer to buy the Notes or any similar Securities from, or otherwise approached or negotiated in respect thereof with, any Person other than the Purchasers and not more than fifty-one (51) other Institutional Investors, each of which has been offered the Notes at a private sale for investment. Neither the Company nor anyone acting on its behalf has taken, or will take, any action that would subject the issuance or sale of the Notes to the registration requirements of section 5 of the Securities Act.

Section 5.14. Use of Proceeds; Margin Regulations. The Company will apply the proceeds of the sale of the Notes hereunder for contributions or other distributions to the ESOP to facilitate purchases of shares of stock of the Company, to finance acquisitions and for general corporate purposes. No part of the proceeds from the sale of the Notes hereunder will be used, directly or indirectly, for the purpose of buying or carrying any margin stock within the meaning

of Regulation U of the Board of Governors of the Federal Reserve System (12 CFR 221), or for the purpose of buying or carrying or trading in any Securities under such circumstances as to involve the Company in a violation of Regulation X of said Board (12 CFR 224) or to involve any broker or dealer in a violation of Regulation T of said Board (12 CFR 220). Margin stock does not constitute more than 15% of the value of the consolidated assets of the Company and its Subsidiaries and the Company does not have any present intention that margin stock will constitute more than 15% of the value of such assets. As used in this Section, the terms “margin stock” and “purpose of buying or carrying” shall have the meanings assigned to them in said Regulation U.

Section 5.15. Existing Debt; Future Liens. (a) Except as described therein, Schedule 5.15 sets forth a complete and correct list of all outstanding Debt of the Company and its Subsidiaries as of December 31, 2013 (including descriptions of the obligors and obligees, principal amounts outstanding, any collateral therefor and any Guaranties thereof), since which date there has been no Material change in the amounts, interest rates, sinking funds, installment payments or maturities of the Debt of the Company or its Subsidiaries other than changes in the ordinary course of business in the working capital borrowing of the Company and its Subsidiaries. Neither the Company nor any Subsidiary is in default and no waiver of default is currently in effect, in the payment of any principal or interest on any Debt of the Company or such Subsidiary and no event or condition exists with respect to any Debt of the Company or any Subsidiary the outstanding principal amount of which exceeds $1,000,000 that would permit (or that with notice or the lapse of time, or both, would permit) one or more Persons to cause such Debt to become due and payable before its stated maturity or before its regularly scheduled dates of payment.

(b) Except as disclosed in Schedule 5.15, neither the Company nor any Subsidiary has agreed or consented to cause or permit any of its property, whether now owned or hereafter acquired, to be subject to a Lien that secures Debt or to cause or permit in the future (upon the happening of a contingency or otherwise) any of its property, whether now owned or hereafter acquired, to be subject to a Lien that secures Debt.

(c) Neither the Company nor any Subsidiary is a party to, or otherwise subject to any provision contained in, any instrument evidencing Debt of the Company or such Subsidiary, any agreement relating thereto or any other agreement (including, but not limited to, its charter or any other organizational document) which limits the amount of, or otherwise imposes restrictions on the incurring of, Debt of the Company, except as disclosed in Schedule 5.15.

Section 5.16. Foreign Assets Control Regulations, Etc. (a) Neither the Company nor any Controlled Entity is (i) a Person whose name appears on the list of Specially Designated Nationals and Blocked Persons published by the Office of Foreign Assets Control, United States Department of the Treasury (“OFAC”) (an “OFAC Listed Person”) (ii) an agent, department, or instrumentality of, or is otherwise beneficially owned by, controlled by or acting on behalf of, directly or indirectly, (x) any OFAC Listed Person or (y) any Person, entity, organization, foreign country or regime that is subject to any OFAC Sanctions Program, or (iii) otherwise blocked, subject to sanctions under or engaged in any activity in violation of other United States economic sanctions, including but not limited to, the Trading with the Enemy Act, the

International Emergency Economic Powers Act, the Comprehensive Iran Sanctions, Accountability and Divestment Act (“CISADA”) or any similar law or regulation with respect to Iran or any other country, the Sudan Accountability and Divestment Act, any OFAC Sanctions Program, or any economic sanctions regulations administered and enforced by the United States or any enabling legislation or executive order relating to any of the foregoing (collectively, “U.S. Economic Sanctions”) (each OFAC Listed Person and each other Person, entity, organization and government of a country described in clause (i), clause (ii) or clause (iii), a “Blocked Person”). Neither the Company nor any Controlled Entity has been notified in writing that its name appears or may in the future appear on a state list of Persons that engage in investment or other commercial activities in Iran or any other country that is subject to U.S. Economic Sanctions.

(b) No part of the proceeds from the sale of the Notes hereunder constitutes or will constitute funds obtained on behalf of any Blocked Person or will otherwise be used by the Company or any Controlled Entity, directly or indirectly, (i) in connection with any investment in, or any transactions or dealings with, any Blocked Person, or (ii) otherwise in violation of U.S. Economic Sanctions.

(c) Neither the Company nor any Controlled Entity (i) has been found in violation of, charged with, or convicted of, money laundering, drug trafficking, terrorist-related activities or other money laundering predicate crimes under the Currency and Foreign Transactions Reporting Act of 1970 (otherwise known as the Bank Secrecy Act), the USA PATRIOT Act or any other United States law or regulation governing such activities (collectively, “Anti-Money Laundering Laws”) or any U.S. Economic Sanctions violations, (ii) to the Company’s actual knowledge after making due inquiry, is under investigation by any Governmental Authority for possible violation of Anti-Money Laundering Laws or any U.S. Economic Sanctions violations, (iii) has been assessed civil penalties under any Anti-Money Laundering Laws or any U.S. Economic Sanctions, or (iv) has had any of its funds seized or forfeited in an action under any Anti-Money Laundering Laws. The Company has established procedures and controls which it reasonably believes are adequate (and otherwise comply with applicable law) to ensure that the Company and each Controlled Entity is and will continue to be in material compliance with all applicable current and future Anti-Money Laundering Laws and U.S. Economic Sanctions.

(d) (1) Neither the Company nor any Controlled Entity (i) has been charged with, or convicted of bribery or any other anti-corruption related activity under any applicable law or regulation in a U.S. or any non-U.S. country or jurisdiction, including but not limited to, the U.S. Foreign Corrupt Practices Act and the U.K. Bribery Act 2010 (collectively, “Anti-Corruption Laws”), (ii) to the Company’s actual knowledge after making due inquiry, is under investigation by any U.S. or non-U.S. Governmental Authority for possible violation of Anti-Corruption Laws, (iii) has been assessed civil or criminal penalties under any Anti-Corruption Laws or (iv) has been or is the target of sanctions imposed by the United Nations or the European Union;

(2) To the Company’s actual knowledge after making due inquiry, neither the Company nor any Controlled Entity has, within the last five years, directly or indirectly offered, promised, given, paid or authorized the offer, promise, giving or payment of anything of value to a Governmental Official or a commercial counterparty for the purposes of: (i) influencing any act, decision or failure to act by such Governmental Official in his or her official capacity or such commercial counterparty, (ii) inducing a Governmental Official to do or omit to do any act in violation of the Governmental Official’s lawful duty, or (iii) inducing a Governmental Official or a commercial counterparty to use his or her influence with a government or instrumentality to affect any act or decision of such government or entity; in each case in order to obtain, retain or direct business or to otherwise secure an improper advantage in violation of any applicable law or regulation or which would cause any holder to be in violation of any law or regulation applicable to such holder; and

(3) No part of the proceeds from the sale of the Notes hereunder will be used, directly or indirectly, for any illegal payments, including bribes, to any Governmental Official or commercial counterparty in order to obtain, retain or direct business or obtain any improper advantage. The Company has established procedures and controls which it reasonably believes are adequate (and otherwise comply with applicable law) to ensure that the Company and each Controlled Entity is and will continue to be in compliance with all applicable current and future Anti-Corruption Laws.

Section 5.17. Status under Certain Statutes. Neither the Company nor any Subsidiary is subject to regulation under the Investment Company Act of 1940, as amended, the Public Utility Holding Company Act of 2005, as amended, the ICC Termination Act of 1995, as amended, or the Federal Power Act, as amended.

Section 5.18. Environmental Matters. (a) Neither the Company nor any Subsidiary has knowledge of any claim or has received any notice of any claim and no proceeding has been instituted asserting any claim against the Company or any of its Subsidiaries or any of their respective real properties or other assets now or formerly owned, leased or operated by any of them, alleging any damage to the environment or violation of any Environmental Laws, except, in each case, such as could not reasonably be expected to result in a Material Adverse Effect.

(b) Neither the Company nor any Subsidiary has knowledge of any facts which would give rise to any claim, public or private, of violation of Environmental Laws or damage to the environment emanating from, occurring on or in any way related to real properties now or formerly owned, leased or operated by any of them or to other assets or their use, except, in each case, such as could not, individually or in the aggregate, reasonably be expected to result in a Material Adverse Effect.

(c) Neither the Company nor any Subsidiary has stored any Hazardous Materials on real properties now or formerly owned, leased or operated by any of them in a manner which is contrary to any Environmental Law that could, individually or in the aggregate, reasonably be expected to result in a Material Adverse Effect.

(d) Neither the Company nor any Subsidiary has disposed of any Hazardous Materials in a manner which is contrary to any Environmental Law that could, individually or in the aggregate, reasonably be expected to result in a Material Adverse Effect.

(e) All buildings on all real properties now owned, leased or operated by the Company or any Subsidiary are in compliance with applicable Environmental Laws, except where failure to comply could not, individually or in the aggregate, reasonably be expected to result in a Material Adverse Effect.

SECTION 6. REPRESENTATIONS OF THE PURCHASERS.

Section 6.1. Purchase for Investment. Each Purchaser severally represents that it (a) is purchasing the Notes for its own account or for one or more separate accounts maintained by such Purchaser or for the account of one or more pension or trust funds and not with a view to the distribution thereof, provided that the disposition of such Purchaser’s or such pension or trust fund’s property shall at all times be within such Purchaser’s or such pension or trust fund’s control and (b) it is an “accredited investor” (as defined in Rule 501(a)(1), (2), (3), (7) or (8) under the Securities Act). Each Purchaser understands that the Notes have not been registered under the Securities Act and may be resold only if registered pursuant to the provisions of the Securities Act or if an exemption from registration is available, except under circumstances where neither such registration nor such an exemption is required by law, and that the Company is not required to register the Notes.

Section 6.2. Source of Funds. Each Purchaser severally represents that at least one of the following statements is an accurate representation as to each source of funds (a “Source”) to be used by such Purchaser to pay the purchase price of the Notes to be purchased by such Purchaser hereunder:

(a) the Source is an “insurance company general account” (as the term is defined in the United States Department of Labor’s Prohibited Transaction Exemption (“PTE”) 95-60) in respect of which the reserves and liabilities (as defined by the annual statement for life insurance companies approved by the NAIC (the “NAIC Annual Statement”)) for the general account contract(s) held by or on behalf of any employee benefit plan together with the amount of the reserves and liabilities for the general account contract(s) held by or on behalf of any other employee benefit plans maintained by the same employer (or affiliate thereof as defined in PTE 95-60) or by the same employee organization in the general account do not exceed 10% of the total reserves and liabilities of the general account (exclusive of separate account liabilities) plus surplus as set forth in the NAIC Annual Statement filed with such Purchaser’s state of domicile; or

(b) the Source is a separate account that is maintained solely in connection with such Purchaser’s fixed contractual obligations under which the amounts payable, or credited, to any employee benefit plan (or its related trust) that has any interest in such separate account (or to any participant or beneficiary of such plan (including any annuitant)) are not affected in any manner by the investment performance of the separate account; or

(c) the Source is either (i) an insurance company pooled separate account, within the meaning of PTE 90-1 or (ii) a bank collective investment fund, within the meaning of the PTE 91-38 and, except as disclosed by such Purchaser to the Company in writing pursuant to this clause (c), no employee benefit plan or group of plans maintained by the same employer or employee organization beneficially owns more than 10% of all assets allocated to such pooled separate account or collective investment fund; or

(d) the Source constitutes assets of an “investment fund” (within the meaning of Part VI of PTE 84-14 (the “QPAM Exemption”)) managed by a “qualified professional asset manager” or “QPAM” (within the meaning of Part VI of the QPAM Exemption), no employee benefit plan’s assets that are managed by the QPAM in such investment fund, when combined with the assets of all other employee benefit plans established or maintained by the same employer or by an affiliate (within the meaning of Part VI(c)(1) of the QPAM Exemption) of such employer or by the same employee organization and managed by such QPAM, represent more than 20% of the total client assets managed by such QPAM, the conditions of Part I(c) and (g) of the QPAM Exemption are satisfied, neither the QPAM nor a person controlling or controlled by the QPAM maintains an ownership interest in the Company that would cause the QPAM and the Company to be “related” within the meaning of Part VI(h) of the QPAM Exemption and (i) the identity of such QPAM and (ii) the names of any employee benefit plans whose assets in the investment fund, when combined with the assets of all other employee benefit plans established or maintained by the same employer or by an affiliate (within the meaning of Part VI(c)(1) of the QPAM Exemption) of such employer or by the same employee organization, represent 10% or more of the assets of such investment fund, have been disclosed to the Company in writing pursuant to this clause (d);or

(e) the Source constitutes assets of a “plan(s)” (within the meaning of Part IV(h) of PTE 96-23 (the “INHAM Exemption”)) managed by an “in-house asset manager” or “INHAM” (within the meaning of Part IV(a) of the INHAM Exemption), the conditions of Part I(a), (g) and (h) of the INHAM Exemption are satisfied, neither the INHAM nor a person controlling or controlled by the INHAM (applying the definition of “control” in Part IV(d)(3) of the INHAM Exemption) owns a 10% or more interest in the Company and (i) the identity of such INHAM and (ii) the name(s) of the employee benefit plan(s) whose assets constitute the Source have been disclosed to the Company in writing pursuant to this clause (e); or

(f) the Source is a governmental plan; or

(g) the Source is one or more employee benefit plans, or a separate account or trust fund comprised of one or more employee benefit plans, each of which has been identified to the Company in writing pursuant to this clause (g); or

(h) the Source does not include assets of any employee benefit plan, other than a plan exempt from the coverage of ERISA.

As used in this Section 6.2, the terms “employee benefit plan,” “governmental plan,” and “separate account” shall have the respective meanings assigned to such terms in section 3 of ERISA.

SECTION 7. INFORMATION AS TO COMPANY^,.

Section 7.1. Financial and Business Information. The Company shall deliver to each Purchaser and each holder of a Note that is an Institutional Investor:

(a) Quarterly Statements — within 60 days after the end of each quarterly fiscal period in each fiscal year of the Company (other than the last quarterly fiscal period of each such fiscal year), a copy of,

(i) a consolidated balance sheet of the Company and its Subsidiaries as at the end of such quarter, and

(ii) consolidated statements of income and cash flows of the Company and its Subsidiaries, for the portion of the fiscal year ending with such quarter,

setting forth in each case in comparative form the figures for the corresponding periods in the previous fiscal year, all in reasonable detail, prepared in accordance with GAAP applicable to quarterly financial statements generally, and certified by a Senior Financial Officer as fairly presenting, in all material respects, the financial position of the companies being reported on and their results of operations and cash flows, subject to changes resulting from year-end adjustments, provided that, in the event that the Company is at such time subject to the periodic reporting requirements of Section 13 of the Securities Exchange Act of 1934, delivery within the time period specified above of copies of the Company’s Quarterly Report on Form 10-Q (the “Form 10-Q”) prepared in compliance with the requirements therefor and filed with the SEC shall be deemed to satisfy the requirements of this Section 7.1(a);

(b) Annual Statements — within 105 days after the end of each fiscal year of the Company, a copy of

(i) a consolidated balance sheet of the Company and its Subsidiaries as at the end of such year, and

(ii) consolidated statements of income, changes in stockholders’ equity and cash flows of the Company and its Subsidiaries for such year,

setting forth in each case in comparative form the figures for the previous fiscal year, all in reasonable detail, prepared in accordance with GAAP, and accompanied by an opinion thereon (without a “going concern” or similar qualification or exception and without any qualification or exception as to the scope of the audit on which such opinion is based) of independent public accountants of recognized national standing, which opinion shall state that such financial statements present fairly, in all material respects, the financial position of the companies being reported upon and their results of operations and cash flows and have been prepared in conformity with GAAP, and that the examination of such accountants in connection with such financial statements has been made in accordance with generally accepted auditing standards, and that such audit provides a reasonable

basis for such opinion in the circumstances, provided that, in the event that the Company is at such time subject to the periodic reporting requirements of Section 13 of the Securities Exchange Act of 1934, the delivery within the time period specified above of the Company’s Annual Report on Form 10-K (the “Form 10-K”) for such fiscal year (together with the Company’s annual report to stockholders, if any, prepared pursuant to Rule 14a-3 under the Securities Exchange Act of 1934) prepared in accordance with the requirements therefor and filed with the SEC, shall be deemed to satisfy the requirements of this Section 7.1(b);

(c) SEC and Other Reports — promptly upon their becoming available, one copy of (i) each financial statement, report, notice or proxy statement sent by the Company or any Subsidiary to its public Securities holders generally, and (ii) each regular or periodic report, each registration statement (without exhibits except as expressly requested by such Purchaser or holder), and each prospectus and all amendments thereto filed by the Company or any Subsidiary with the SEC and of all press releases and other statements made available generally by the Company or any Subsidiary to the public concerning developments that are Material;

(d) Notice of Default or Event of Default — promptly, and in any event within five Business Days after a Responsible Officer becoming aware of the existence of any Default or Event of Default or that any Person has given any notice or taken any action with respect to a claimed default hereunder or that any Person has given any notice or taken any action with respect to a claimed default of the type referred to in Section 11(f), a written notice specifying the nature and period of existence thereof and what action the Company is taking or proposes to take with respect thereto;

(e) ERISA Matters — promptly, and in any event within five Business Days after a Responsible Officer becoming aware of any of the following, a written notice setting forth the nature thereof and the action, if any, that the Company or an ERISA Affiliate proposes to take with respect thereto:

(i) with respect to any Plan, any reportable event, as defined in section 4043(c) of ERISA and the regulations thereunder, for which notice thereof has not been waived pursuant to such regulations as in effect on the date hereof; or

(ii) the taking by the PBGC of steps to institute, or the threatening by the PBGC of the institution of, proceedings under section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Plan, or the receipt by the Company or any ERISA Affiliate of a notice from a Multiemployer Plan that such action has been taken by the PBGC with respect to such Multiemployer Plan; or

(iii) any event, transaction or condition that could result in the incurrence of any liability by the Company or any ERISA Affiliate pursuant to Title I or IV of ERISA or the penalty or excise tax provisions of the Code relating to employee benefit plans, or in the imposition of any Lien on any of the rights, properties or assets of the Company or any ERISA Affiliate pursuant to Title I or IV of ERISA or such penalty or excise tax provisions, if such liability or Lien, taken together with any other such liabilities or Liens then existing, could reasonably be expected to have a Material Adverse Effect; or

(iv) receipt of notice of the imposition of a Material financial penalty (which for this purpose shall mean any Material tax, penalty or other liability, whether by way of indemnity or otherwise) with respect to one or more Non-U.S. Plans;

(f) Notices from Governmental Authority — promptly, and in any event within 30 days of receipt thereof, copies of any notice to the Company or any Subsidiary from any federal or state Governmental Authority relating to any order, ruling, statute or other law or regulation that could reasonably be expected to have a Material Adverse Effect;

(g) Maximum ESOP Liability — annually, written disclosure of the amount of the estimated maximum Repurchase Liability of the Company under the ESOP; and

(h) Requested Information — with reasonable promptness, such other data and information relating to the business, operations, affairs, financial condition, assets or properties of the Company or any of its Subsidiaries (including, but without limitation, actual copies of the Company’s Form 10-Q and Form 10-K) or relating to the ability of the Company to perform its obligations hereunder and under the Notes as from time to time may be reasonably requested by any such Purchaser or holder of a Note.

Section 7.2. Officer’s Certificate. Each set of financial statements delivered to a Purchaser or a holder of a Note pursuant to Section 7.1(a) or Section 7.1(b) shall be accompanied by a certificate of a Senior Financial Officer:

(a) Covenant Compliance — setting forth the information from such financial statements that is required in order to establish whether the Company was in compliance with the requirements of Section 10.6, Section 10.7 and Section 10.8 during the quarterly or annual period covered by the statements then being furnished, (including with respect to each such provision that involves mathematical calculations, the information from such financial statements that is required to perform such calculations) and detailed calculations of the maximum or minimum amount, ratio or percentage, as the case may be, permissible under the terms of such Section, and the calculation of the amount, ratio or percentage then in existence. In the event that the Company or any Subsidiary has made an election to measure any financial liability using fair value (which election is being disregarded for purposes of determining compliance with this Agreement pursuant to Section 22.2) as to the period covered by any such financial statement, such Senior Financial Officer’s certificate as to such period shall include a reconciliation from GAAP with respect to such election; and

(b) Event of Default — certifying that such Senior Financial Officer has reviewed the relevant terms hereof and has made, or caused to be made, under his or her supervision, a review of the transactions and conditions of the Company and its Subsidiaries from the beginning of the quarterly or annual period covered by the statements then being furnished to the date of the certificate and that such review shall not have disclosed the existence during such period of any condition or event that constitutes a Default or an Event of Default or, if any such condition or event existed or exists (including, without limitation, any such event or condition resulting from the failure of the Company or any Subsidiary to comply with any Environmental Law), specifying the nature and period of existence thereof and what action the Company shall have taken or proposes to take with respect thereto.

Section 7.3. Visitation. The Company shall permit the representatives of each Purchaser and each holder of a Note that is an Institutional Investor:

(a) No Default — if no Default or Event of Default then exists, at the expense of such Purchaser or such holder and upon reasonable prior written notice to the Company, to visit the principal executive office of the Company, to discuss the affairs, finances and accounts of the Company and its Subsidiaries with the Company’s officers, and (with the consent of the Company, which consent will not be unreasonably withheld) its independent public accountants, and (with the consent of the Company, which consent will not be unreasonably withheld) to visit the other offices and properties of the Company and each Subsidiary, all at such reasonable times during normal business hours and as often as may be reasonably requested in writing; and

(b) Default — if a Default or Event of Default then exists, at the expense of the Company to visit and inspect any of the offices or properties of the Company or any Subsidiary, to examine all their respective books of account, records, reports and other papers, to make copies and extracts therefrom, and to discuss their respective affairs, finances and accounts with their respective officers and independent public accountants (and by this provision the Company authorizes said accountants to discuss the affairs, finances and accounts of the Company and its Subsidiaries), all at such times and as often as may be requested.

Section 7.4. Electronic Delivery. Financial statements, opinions of independent certified public accountants, other information and Officer’s Certificates that are required to be delivered by the Company pursuant to Sections 7.1(a), (b) or (c) and Section 7.2 shall be deemed to have been delivered if the Company satisfies any of the following requirements with respect thereto:

(i) such financial statements satisfying the requirements of Section 7.1(a) or (b) and related Officer’s Certificate satisfying the requirements of Section 7.2 are delivered to each Purchaser or holder of a Note by e-mail to the email address of such Purchaser or holder listed in Schedule B hereto or at such other address as such Purchaser or holder shall from time to time specify to the Company in writing;

(ii) the Company shall have timely filed such Form 10–Q or Form 10–K, satisfying the requirements of Section 7.1(a) or Section 7.1(b), as the case may be, with the SEC on EDGAR and shall have made such form and the related Officer’s Certificate satisfying the requirements of Section 7.2 available on its home page on the internet, which is located at http://www.parsons.com as of the date of this Agreement;

(iii) such financial statements satisfying the requirements of Section 7.1(a) or Section 7.1(b) and related Officer’s Certificate(s) satisfying the requirements of Section 7.2 are timely posted by or on behalf of the Company on IntraLinks or on any other similar website to which each holder of Notes has free access; or

(iv) the Company shall have filed any of the items referred to in Section 7.1(c) with the SEC on EDGAR and shall have made such items available on its home page on the internet or on IntraLinks or on any other similar website to which each holder of Notes has free access;

provided however, that in the case of any of clauses (ii), (iii) or (iv), the Company shall have given each holder of a Note prior written notice, which may be by e-mail or in accordance with Section 18, of such posting or filing in connection with each delivery, provided further, that upon request of any holder to receive paper copies of such forms, financial statements and Officer’s Certificates or to receive them by e-mail, the Company will promptly e-mail them or deliver such paper copies, as the case may be, to such holder.

SECTION 8. PAYMENT AND PREPAYMENT OF THE NOTES.

Section 8.1. Maturity. As provided therein, the entire unpaid principal balance of each Note shall be due and payable on the Maturity Date thereof.

Section 8.2. Optional Prepayments with Make-Whole Amount. The Company may, at its option, upon notice as provided below, prepay at any time all, or from time to time any part of, the Notes of any Series, at 100% of the principal amount so prepaid, and the Make-Whole Amount determined for the prepayment date with respect to such principal amount, provided that if a Default or an Event of Default has occurred and is continuing at the time such notice is provided or on the prepayment date or if a Default or an Event of Default would result from the making of such prepayment, such prepayment shall be pro rata to the holders of all Notes then outstanding. The Company will give each holder of Notes written notice of each optional prepayment under this Section 8.2 not less than ten days and not more than 60 days prior to the date fixed for such prepayment unless the Company and the Required Holders agree to another time period pursuant to Section 17. Each such notice shall specify such date (which shall be a Business Day), the aggregate principal amount of the Notes of each Series to be prepaid on such date, the principal amount of each Note of each Series held by such holder to be prepaid (determined in accordance with Section 8.3), and the interest to be paid on the prepayment date with respect to such principal amount being prepaid, and shall be accompanied by a certificate of a Senior Financial Officer as to the estimated Make-Whole Amount due with respect to each Series of Notes to be prepaid in connection with such prepayment (calculated as if the date of such notice were the date of the prepayment), setting forth the details of such computation. Two Business Days prior to such prepayment, the Company shall deliver to each holder of Notes a certificate of a Senior Financial Officer specifying the calculation of such Make-Whole Amount as of the specified prepayment date.

Section 8.3. Allocation of Partial Prepayments. In the case of each partial prepayment of the Notes pursuant to Section 8.2, the principal amount of the Notes to be prepaid shall be allocated (i) among the Series of Notes at the time outstanding as directed by the Company in its notice of prepayment provided pursuant to Section 8.2 and (ii) among all of the Notes of a given Series at the time outstanding in proportion, as nearly as practicable, to the respective unpaid principal amounts thereof not theretofore called for prepayment. All partial prepayments or purchases made pursuant to Section 8.5(b), Section 8.7, Section 8.8 or Section 8.9 shall be applied only to the Notes of the holders who have elected to participate in such prepayment or purchase.

Section 8.4. Maturity; Surrender, Etc. In the case of each optional prepayment of Notes pursuant to this Section 8, the principal amount of each Note to be prepaid shall mature and become due and payable on the date fixed for such prepayment, together with interest on such principal amount accrued to such date and the applicable Make-Whole Amount, if any. From and after such date, unless the Company shall fail to pay such principal amount when so due and payable, together with the interest and Make-Whole Amount, if any, as aforesaid, interest on such principal amount shall cease to accrue. Any Note paid or prepaid in full shall be surrendered to the Company and cancelled and shall not be reissued, and no Note shall be issued in lieu of any prepaid principal amount of any Note.

Section 8.5. Purchase of Notes. The Company will not and will not permit any Affiliate to purchase, redeem, prepay or otherwise acquire, directly or indirectly, any of the outstanding Notes except (a) upon the payment or prepayment of the Notes in accordance with this Agreement and the Notes or (b) pursuant to an offer to purchase made by the Company or an Affiliate pro rata to the holders of all Notes at the time outstanding upon the same terms and conditions (except to the extent necessary to reflect differences in the interest rates and maturities of the Notes of different Series). Any such offer shall provide each holder with sufficient information to enable it to make an informed decision with respect to such offer, and shall remain open for at least 15 Business Days. If the holders of more than 25% of the principal amount of the Notes then outstanding accept such offer, the Company shall promptly notify the remaining holders of such fact and the expiration date for the acceptance by holders of Notes of such offer shall be extended by the number of days necessary to give each such remaining holder at least 5 Business Days from its receipt of such notice to accept such offer. The Company will promptly cancel all Notes acquired by it or any Affiliate pursuant to any payment, prepayment or purchase of Notes pursuant to this Agreement and no Notes may be issued in substitution or exchange for any such Notes.

Section 8.6. Make-Whole Amount.

“Make-Whole Amount” means, with respect to any Note of any Series, an amount equal to the excess, if any, of the Discounted Value of the Remaining Scheduled Payments with respect to the Called Principal of such Note over the amount of such Called Principal, provided that the Make-Whole Amount may in no event be less than zero. For the purposes of determining the Make-Whole Amount, the following terms have the following meanings:

“Called Principal” means, with respect to any Note of any Series, the principal of such Note that is to be prepaid pursuant to Section 8.2 or has become or is declared to be immediately due and payable pursuant to Section 12.1, as the context requires.

“Discounted Value” means, with respect to the Called Principal of any Note of any Series, the amount obtained by discounting all Remaining Scheduled Payments with respect to such Called Principal from their respective scheduled due dates to the Settlement Date with respect to such Called Principal, in accordance with accepted financial practice and at a discount factor (applied on the same periodic basis as that on which interest on the Notes of any Series is payable) equal to the Reinvestment Yield with respect to such Called Principal.

“Reinvestment Yield” means, with respect to the Called Principal of any Note of any Series, 0.50% over the yield to maturity implied by the yield(s) reported as of 10:00 a.m. (New York City time) on the second Business Day preceding the Settlement Date with respect to such Called Principal, on the display designated as “Page PX1” (or such other display as may replace Page PX1) on Bloomberg Financial Markets for the most recently issued actively traded on-the-run U.S. Treasury securities (“Reported”) having a maturity equal to the Remaining Average Life of such Called Principal as of such Settlement Date. If there are no such U.S. Treasury securities Reported having a maturity equal to such Remaining Average Life, then such implied yield to maturity will be determined by (a) converting U.S. Treasury bill quotations to bond equivalent yields in accordance with accepted financial practice and (b) interpolating linearly between the yields Reported for the applicable most recently issued actively traded on-the-run U.S. Treasury securities with the maturities (1) closest to and greater than such Remaining Average Life and (2) closest to and less than such Remaining Average Life. The Reinvestment Yield shall be rounded to the number of decimal places as appears in the interest rate of the applicable Note.

If such yields are not Reported or the yields Reported as of such time are not ascertainable (including by way of interpolation), then “Reinvestment Yield” means, with respect to the Called Principal of any Note, 0.50% over the yield to maturity implied by the U.S. Treasury constant maturity yields reported, for the latest day for which such yields have been so reported as of the second Business Day preceding the Settlement Date with respect to such Called Principal, in Federal Reserve Statistical Release H.15 (or any comparable successor publication) for the U.S. Treasury constant maturity having a term equal to the Remaining Average Life of such Called Principal as of such Settlement Date. If there is no such U.S. Treasury constant maturity having a term equal to such Remaining Average Life, such implied yield to maturity will be determined by interpolating linearly between (1) the U.S. Treasury constant maturity so reported with the term closest to and greater than such Remaining Average Life and (2) the U.S. Treasury constant maturity so reported with the term closest to and less than such Remaining Average Life. The Reinvestment Yield shall be rounded to the number of decimal places as appears in the interest rate of the applicable Note.

“Remaining Average Life” means, with respect to any Called Principal, the number of years obtained by dividing (i) such Called Principal into (ii) the sum of the products obtained by multiplying (a) the principal component of each Remaining Scheduled Payment with respect to such Called Principal by (b) the number of years, computed on the basis of a 360-day year composed of twelve 30-day months and calculated to two decimal places, that will elapse between the Settlement Date with respect to such Called Principal and the scheduled due date of such Remaining Scheduled Payment.

“Remaining Scheduled Payments” means, with respect to the Called Principal of any Note of any Series, all payments of such Called Principal and interest thereon that would be due after the Settlement Date with respect to such Called Principal if no payment of such Called Principal were made prior to its scheduled due date, provided that if such Settlement Date is not a date on which interest payments are due to be made under the Notes of any Series, then the amount of the next succeeding scheduled interest payment will be reduced by the amount of interest accrued to such Settlement Date and required to be paid on such Settlement Date pursuant to Section 8.4 or Section 12.1.

“Settlement Date” means, with respect to the Called Principal of any Note of any Series, the date on which such Called Principal is to be prepaid pursuant to Section 8.2 or has become or is declared to be immediately due and payable pursuant to Section 12.1, as the context requires.

Section 8.7. OFAC Sanctions Prepayment.

(a) If a Change in OFAC Sanctions should occur, and as a consequence of such Change in OFAC Sanctions, any holder of Notes who is a U.S. person or a person subject to U.S. jurisdiction (as those terms are defined under the applicable U.S. Economic Sanctions) (each, an “Affected Noteholder”) would be in violation of the U.S. Economic Sanctions as a consequence of the activities of the Company or its Subsidiaries (including, without limitation, the use of proceeds of the Notes) which were being conducted prior to the Change in OFAC Sanctions being continued after such Change in OFAC Sanctions (such event, an “OFAC Change Event”), then such Affected Noteholder may give written notice of such event to all holders of Notes and to the Company, in which case the Company shall promptly, and in any event within 10 Business Days, give written notice of its receipt of such notice (and the details thereof) to all other holders of Notes), which notice (the “OFAC Change Notice”) shall describe the facts and circumstances of such Change in OFAC Sanctions and OFAC Change Event.

(b) If an OFAC Change Event has occurred, then the Company shall within 30 days of the date of such OFAC Change Notice, make an offer (the “Company Offer”) to prepay the entire unpaid principal amount of Notes held by each Affected Noteholder (the “Affected Notes”), together with interest thereon to the prepayment date selected by the Company with respect to each Affected Note but without payment of any Make-Whole Amount with respect thereto, which prepayment shall be on a date not more than 60 days after the date of the Company Offer. Such Company Offer shall request each Affected Noteholder to notify the Company in writing by a stated date (the “OFAC Event Response Date”), which date is not less than 30 days after such Affected Noteholder’s receipt of the Company Offer, of its acceptance or rejection of such prepayment offer. If an Affected Noteholder does not notify the Company as to whether such Affected Noteholder accepts or rejects such Company Offer on or prior to the OFAC Event Response Date as provided above, then such holder shall be deemed to have rejected such offer.

(c) On the prepayment date specified in the Company Offer, the entire unpaid principal amount of the Affected Notes held by each Affected Noteholder who has accepted such prepayment offer (in accordance with subparagraph (b)), together with interest thereon to the prepayment date with respect to each such Affected Note but without payment of any Make-Whole Amount with respect thereto shall become due and payable.

(d) For purposes of this Agreement, a “Change in OFAC Sanctions” means (individually or collectively with one or more prior changes) an amendment to, or change in, any U.S. Economic Sanctions after the date of the Closing, or an amendment to, or change in, an official interpretation or application of such U.S. Economic Sanctions after the date of the Closing, which amendment or change is in force and continuing.

(e) Notwithstanding anything to the contrary contained in this Section 8.7, if an OFAC Change Event has occurred but the Company has taken such action(s) in relation to its activities so as to remedy any violation of U.S. Economic Sanctions by the Affected Noteholders (such that the Affected Noteholders shall no longer be in violation of U.S. Economic Sanctions) and the Company has so notified all holders of the Notes in writing either prior to the date the Company makes the Company Offer or the date an Affected Noteholder notifies the Company of its acceptance of the Company Offer, then the Company shall not be obliged to prepay the Affected Notes in relation to such OFAC Change Event which is no longer continuing.

Section 8.8. Offer to Prepay upon Asset Disposition.

(a) Notice and Offer. In the event of a Transfer where the Company has elected to apply all or a portion of the Net Proceeds Amount of such Transfer pursuant to Section 10.2, the Company shall, no later than the 305^th day following the date of such Transfer, give written notice of such event (an “Asset Disposition Prepayment Event”) to each holder of Notes. Such notice shall contain, and shall constitute, an irrevocable offer to prepay a Ratable Portion of the Notes held by such holder on the date (which shall be a Business Day) specified in such notice (the “Asset Disposition Prepayment Date”) which date shall be not less than 30 days and not more than 60 days after such notice.

(b) Acceptance and Payment. A holder of Notes may accept or reject the offer to prepay pursuant to this Section 8.8 by causing a notice of such acceptance or rejection to be delivered to the Company at least 10 days prior to the Asset Disposition Prepayment Date. A failure by a holder of the Notes to respond to an offer to prepay made pursuant to this Section 8.8 shall be deemed to constitute a rejection of such offer by such holder. If so accepted, such offered prepayment in respect of the Ratable Portion of the Notes of each holder that has accepted such offer shall be due and payable on the Asset Disposition Prepayment Date. Such offered prepayment shall be made at 100% of the aggregate Ratable Portion of the Notes of each holder that has accepted such offer, together with interest on that portion of the Notes then being prepaid accrued to the Asset Disposition Prepayment Date, but without any Make-Whole Amount. If any holder of a Note rejects or is deemed to have rejected such offer of prepayment, the Company may use the Ratable Portion for such Note for general corporate purposes.

(c) Officer’s Certificate. Each offer to prepay the Notes pursuant to this Section 8.8 shall be accompanied by a certificate, executed by a Senior Financial Officer and dated the date of such offer, specifying: (1) the Asset Disposition Prepayment Date; (2) that such offer is being made pursuant to this Section 8.8 and that the failure by a holder to respond to such offer by the deadline established in Section 8.8(b) shall result in such offer to such holder being deemed rejected; (3) the Ratable Portion of each such Note offered to be prepaid; (4) the interest that would be due on the Ratable Portion of each such Note offered to be prepaid, accrued to the Asset Disposition Prepayment Date; (5) that the conditions of this Section 8.8 have been satisfied and (6) in reasonable detail, a description of the nature and date of the Asset Disposition Prepayment Event giving rise to such offer of prepayment.

Section 8.9. Offer to Prepay in the Event of a Change of Control.

(a) Notice of Change of Control. The Company will, at least 30 days prior to any Change of Control, give written notice of such Change of Control to each holder of the Notes. Such notice shall contain and constitute an offer to prepay the Notes as described in Section 8.9(c) and shall be accompanied by the certificate described in Section 8.9(f).

(b) Notice of Acceptance of Offer under Section 8.9(a). If the Company shall at any time receive an acceptance to an offer to prepay Notes under Section 8.9(a) from some, but not all, of the holders of the Notes, then the Company will, within ten Business Days after the receipt of such acceptance, give written notice of such acceptance to each other holder of the Notes.

(c) Offer to Prepay Notes. The offer to prepay Notes contemplated by Section 8.9(a) shall be an offer to prepay, in accordance with and subject to this Section 8.9, all, but not less than all, of the Notes held by each holder (in this case only, “holder” in respect of any Note registered in the name of a nominee for a disclosed beneficial owner shall mean such beneficial owner) at the time of the occurrence of the Change of Control.

(d) Rejection; Acceptance. A holder of Notes may accept or reject the offer to prepay made pursuant to this Section 8.9 by causing a notice of such acceptance or rejection to be delivered to the Company prior to the prepayment date. A failure by a holder of Notes to so respond to an offer to prepay made pursuant to this Section 8.9 shall be deemed to constitute a rejection of such offer by such holder.

(e) Prepayment. Prepayment of the Notes to be prepaid pursuant to this Section 8.9 shall be at 100% of the principal amount of such Notes, together with interest on such Notes accrued to the date of prepayment. The prepayment shall be made on the prepayment date described in the certificate delivered pursuant to Section 8.9(f).

(f) Officer’s Certificate. Each offer to prepay the Notes pursuant to this Section 8.9 shall be accompanied by a certificate, executed by a Responsible Officer of the Company and dated the date of such offer, specifying (i) the proposed prepayment date (which shall be not more than 30 days after the date of the occurrence of the Change of Control), (ii) that such offer is made pursuant to this Section 8.9, (iii) the principal amount of each Note offered to be prepaid, (iv) the interest that would be due on each Note offered to be prepaid, accrued to the prepayment date, (v) that the conditions of this Section 8.9 have been fulfilled, and (vi) in reasonable detail, the nature and anticipated date of the Change of Control.

Section 8.10. Payments Due on Non-Business Days. Anything in this Agreement or the Notes to the contrary notwithstanding, (x) subject to clause (y), any payment of interest on any Note that is due on a date that is not a Business Day shall be made on the next succeeding Business Day without including the additional days elapsed in the computation of the interest payable on such next succeeding Business Day; and (y) any payment of principal of or Make-Whole Amount on any Note (including principal due on the Maturity Date of such Note) that is due on a date that is not a Business Day shall be made on the next succeeding Business Day and shall include the additional days elapsed in the computation of interest payable on such next succeeding Business Day.

SECTION 9. AFFIRMATIVE COVENANTS.

From the date of this Agreement until the Closing and thereafter, so long as any of the Notes are outstanding, the Company covenants that:

Section 9.1. Compliance with Laws. Without limiting Section 10.4, the Company will, and will cause each of its Subsidiaries to, comply with all laws, ordinances or governmental rules or regulations to which each of them is subject, including, without limitation, ERISA, Environmental Laws, the USA PATRIOT Act and the other laws and regulations that are referred to in Section 5.16, and will obtain and maintain in effect all licenses, certificates, permits, franchises and other governmental authorizations necessary to the ownership of their respective properties or to the conduct of their respective businesses, in each case to the extent necessary to ensure that non-compliance with such laws, ordinances or governmental rules or regulations or failures to obtain or maintain in effect such licenses, certificates, permits, franchises and other governmental authorizations would not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect.

Section 9.2. Insurance. The Company will, and will cause each of its Subsidiaries to, maintain, with financially sound and reputable insurers, insurance with respect to their respective properties and businesses against such casualties and contingencies, of such types, on such terms and in such amounts (including deductibles, co-insurance and self-insurance, if adequate reserves are maintained with respect thereto) as is customary in the case of entities of established reputations engaged in the same or a similar business and similarly situated.

Section 9.3. Maintenance of Properties. The Company will, and will cause each of its Subsidiaries to, maintain and keep, or cause to be maintained and kept, their respective properties in good repair, working order and condition (other than ordinary wear and tear), so that the business carried on in connection therewith may be properly conducted at all times, provided that this Section shall not prevent the Company or any Subsidiary from discontinuing the operation and the maintenance of any of its properties if such discontinuance is desirable in the conduct of its business and the Company has concluded that such discontinuance would not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect.

Section 9.4. Payment of Taxes and Claims. The Company will, and will cause each of its Subsidiaries to, file all tax returns required to be filed in any jurisdiction and to pay and discharge all taxes shown to be due and payable on such returns and all other taxes, assessments, governmental charges, or levies imposed on them or any of their properties, assets, income or franchises, to the extent the same have become due and payable and before they have become delinquent and all claims for which sums have become due and payable that have or might become a Lien on properties or assets of the Company or any Subsidiary, provided that neither the Company nor any Subsidiary need pay any such tax, assessment, charge, levy or claim if (i) the amount, applicability or validity thereof is contested by the Company or such Subsidiary on a timely basis in good faith and in appropriate proceedings, and the Company or a Subsidiary has established adequate reserves therefor in accordance with GAAP on the books of the Company or such Subsidiary (such event is hereafter referred to as a “Good Faith Contest”) or (ii) the nonpayment of all such taxes, assessments, charges, levies and claims would not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect.

Section 9.5. Corporate Existence, Etc. Subject to Section 10.2, the Company will at all times preserve and keep its corporate existence in full force and effect. Subject to Section 10.2, the Company will at all times preserve and keep in full force and effect the corporate existence of each of its Subsidiaries (unless merged into the Company or a Wholly-Owned Subsidiary) and all rights and franchises of the Company and its Subsidiaries unless, in the good faith judgment of the Company, the termination of or failure to preserve and keep in full force and effect such corporate existence, right or franchise would not reasonably be expected, individually or in the aggregate, have a Material Adverse Effect.

Section 9.6. Books and Records. The Company will, and will cause each of its Subsidiaries to, maintain proper books of record and account in conformity with GAAP and all applicable requirements of any Governmental Authority having legal or regulatory jurisdiction over the Company or such Subsidiary, as the case may be. The Company will, and will cause each of its Subsidiaries to, keep books, records and accounts which, in reasonable detail, accurately reflect all transactions and dispositions of assets. The Company and its Subsidiaries have devised a system of internal accounting controls sufficient to provide reasonable assurances that their respective books, records, and accounts accurately reflect all transactions and dispositions of assets and the Company will, and will cause each of its Subsidiaries to, continue to maintain such system.

Section 9.7 Subsidiary Guarantors. The Company will cause each Subsidiary that guarantees or otherwise becomes liable at any time, whether as a borrower or an additional or co-borrower or otherwise, for or in respect of any Debt under any Material Credit Facility to concurrently therewith:

(a) enter into an agreement (substantially in the form of Schedule C attached hereto), or enter into a Joinder thereto, providing for the guaranty by such Subsidiary, on a joint and several basis with all other such Subsidiaries, of (i) the prompt payment in full when due of all amounts payable by the Company pursuant to the Notes (whether for principal, interest, Make-Whole Amount or otherwise) and this Agreement, including, without limitation, all indemnities, fees and expenses payable by the Company thereunder and (ii) the prompt, full and faithful performance, observance and discharge by the Company of each and every covenant, agreement, undertaking and provision required pursuant to the Notes or this Agreement to be performed, observed or discharged by it (a “Subsidiary Guaranty”); and

(b) deliver the following to each of holder of a Note:

(i) an executed counterpart of such Subsidiary Guaranty;

(ii) a certificate signed by an authorized responsible officer of such Subsidiary containing representations and warranties on behalf of such Subsidiary to the same effect as those contained in Section 4 of the Subsidiary Guaranty;

(iii) all documents as may be reasonably requested by the Required Holders to evidence the due organization, continuing existence and good standing of such Subsidiary and the due authorization by all requisite action on the part of such Subsidiary of the execution and delivery of such Subsidiary Guaranty and the performance by such Subsidiary of its obligations thereunder; and

(iv) an opinion of counsel reasonably satisfactory to the Required Holders covering such matters relating to such Subsidiary and such Subsidiary Guaranty as described in Schedules 4.4(a)(1) and 4.4(a)(2).

(c) Subject to the requirements of Section 9.7(a), in the event that a Subsidiary Guarantor is no longer a borrower, co-obligor or guarantor or jointly liable under any Material Credit Facility, at the election of the Company and by written notice to each holder of Notes, any such Subsidiary Guarantor may be discharged from all of its obligations and liabilities under its Subsidiary Guaranty and shall be automatically released from its obligations thereunder without the need for the execution or delivery of any other document by the holders or any other Person, provided, in each case, that (i) after giving effect to such release no Default or Event of Default shall have occurred and be continuing, (ii) no amount is then due and payable under such Subsidiary Guaranty, (iii) each holder of Notes shall have received a certificate of a Responsible Officer to the foregoing effect and setting forth the information (including reasonably detailed computations) reasonably required to establish compliance with the foregoing requirements and (iv) if any fee or other consideration is paid or given to any holder of Debt under any Material Credit Facility solely for the purpose of obtaining such release, other than the repayment of all or a portion of such Debt under such Material Credit Facility, each holder of a Note shall have received equivalent consideration (based upon the magnitude of the outstanding Notes compared to the magnitude of such Material Credit Facility) on a pro rata basis.

Section 9.8 Most Favored Lender Status. (a) If at any time a Material Credit Facility contains a covenant (regardless of whether such provision is labeled or otherwise characterized as a covenant, a definition or a default) by the Company to maintain the Leverage Ratio (or a leverage test similar to the Leverage Ratio as defined herein) at a level more favorable to the lenders under such Material Credit Facility than the level set forth in Section 10.6 (any such provision (including any necessary definition), a “More Favorable Covenant”), then the Company shall provide a Most Favored Lender Notice in respect of such More Favorable Covenant. Unless waived in writing by the Required Holders within 15 days after each holder’s receipt of such notice, such More Favorable Covenant shall be deemed automatically incorporated by reference into Section 10.6 of this Agreement, mutatis mutandis, as if set forth in full herein, effective as of the date when such More Favorable Covenant shall have become effective under such Material Credit Facility.

(b) Any More Favorable Covenant incorporated into this Agreement (herein referred to as an “Incorporated Covenant”) pursuant to this Section 9.8 (i) shall be deemed automatically amended herein to reflect any subsequent amendments made to such More Favorable Covenant under the applicable Material Credit Facility (provided that, if a Default or an Event of Default then exists and the amendment of such More Favorable Covenant would make such covenant less restrictive on the Company, such Incorporated Covenant shall only be deemed automatically amended at such time, if it should occur, when such Default or Event of Default no longer exists) and (ii) shall be deemed automatically deleted from this Agreement at such time as such More Favorable Covenant is deleted or otherwise removed from the applicable Material Credit Facility or such applicable Material Credit Facility ceases to be a Material Credit Facility or shall be terminated (provided that, if a Default or an Event of Default then exists, such Incorporated Covenant shall only be deemed automatically deleted from this Agreement at such time, if it should occur, when such Default or Event of Default no longer exists).

(c) “Most Favored Lender Notice” means, in respect of any More Favorable Covenant, a written notice to each of the holders of the Notes delivered promptly, and in any event within twenty Business Days after the inclusion of such More Favorable Covenant in any Material Credit Facility (including by way of amendment or other modification of any existing provision thereof) from a Responsible Officer referring to the provisions of this Section 9.8 and setting forth a reasonably detailed description of such More Favorable Covenant (including any defined terms used therein) and related explanatory calculations, as applicable.

(d) Notwithstanding the foregoing, no covenant other than a covenant testing the Leverage Ratio (or a leverage test similar to the Leverage Ratio as defined herein) shall be deemed to be a More Favorable Covenant.

Although it will not be a Default or an Event of Default if the Company fails to comply with any provision of Section 9 on or after the date of this Agreement and prior to the Closing, if such a failure occurs, then any of the Purchasers may elect not to purchase the Notes on the date of Closing that is specified in Section 3.

SECTION 10. NEGATIVE COVENANTS.

From the date of this Agreement until the Closing and thereafter, so long as any of the Notes are outstanding, the Company covenants that:

Section 10.1. Transactions with Affiliates. The Company will not and will not permit any Subsidiary to enter into any transaction of any kind with any Affiliate of the Company other than (a) salary, bonus, employee stock option and other advances, compensation arrangements with employees, directors or officers in the ordinary course of business, (b) transactions between or among the Company and its Subsidiaries or Affiliates undertaken in the ordinary course of business and expressly authorized by a resolution of the board of directors (or the executive committee of the board of directors) of the Company, and (c) other transactions undertaken in the ordinary course of business on overall terms at least as favorable to the Company or its Subsidiaries as would be the case in an arm’s-length transaction between unrelated parties of equal bargaining power.

Section 10.2. Merger and Sale of Assets. The Company will not merge with or into or consolidate with, or permit any of its Subsidiaries to merge with or into or consolidate with, any other Person or sell, lease or transfer or otherwise dispose of any assets if the book value or Fair Market Value (whichever is greater) of all Asset Dispositions by the Company and its Subsidiaries in any 12 month period exceeds 10% of Consolidated Equity, calculated as of the end of the most recently ended fiscal quarter, except that:

(a) any Subsidiary may merge with the Company (provided that the Company shall be the continuing or surviving corporation) or with or into any domestic Wholly-Owned Subsidiary other than a Non-Guarantor Subsidiary, except that a Non-Guarantor Subsidiary may merge with or into another Non-Guarantor Subsidiary, and provided that such domestic Wholly-Owned Subsidiary shall be the continuing or surviving corporation;

(b) any Subsidiary may sell, lease, transfer or otherwise dispose of any of its assets to the Company or a domestic Wholly-Owned Subsidiary (except a Non-Guarantor Subsidiary);

(c) the Company or any Subsidiary may dispose of any assets which in the good faith judgment of the Company are obsolete or otherwise unproductive; and

(d) the Company may merge with another domestic corporation so long as the Company is the surviving corporation and no Default or Event of Default exists or would result after giving effect to the completion of such merger.

If the Net Proceeds Amount for any Transfer is, within 365 days after such Transfer, (1) applied to a Debt Prepayment Application, (2) applied to or would otherwise constitute a Property Reinvestment Application or (3) applied to any combination of the foregoing clauses (1) and (2), then such Transfer, for the purpose of determining compliance with this Section 10.2, shall be deemed not to be an Asset Disposition.

Section 10.3. Line of Business. The Company will not and will not permit any Subsidiary to engage in any business if, as a result, the general nature of the business in which the Company and its Subsidiaries, taken as a whole, would then be engaged would be substantially changed from the Line of Business.

Section 10.4. Terrorism Sanctions Regulations. The Company will not and will not permit any Controlled Entity (a) to become (including by virtue of being owned or controlled by a Blocked Person), own or control a Blocked Person or any Person that is the target of sanctions imposed by the United Nations or by the European Union, or (b) directly or indirectly to have any investment in or engage in any dealing or transaction (including, without limitation, any investment, dealing or transaction involving the proceeds of the Notes) with any Person if such investment, dealing or transaction is prohibited by or subject to sanctions under any U.S. Economic Sanctions, or (c) to engage, nor shall any Affiliate of either engage, in any activity that could subject such Person or any Purchaser or holder to sanctions under CISADA or any similar law or regulation with respect to Iran or any other country that is subject to U.S. Economic Sanctions.

In the event of any breach of this Section 10.4 that results solely from a Change in OFAC Sanctions and such Change in OFAC Sanctions causes the occurrence of an OFAC Change Event, the relevant holders of Notes shall have only those rights and remedies set forth in Section 8.7. In the event of any other breach of this Section 10.4, the holders of Notes shall have all rights and remedies that may be available under Section 12.

Section 10.5. Liens. The Company will not and will not permit any of its Subsidiaries to directly or indirectly create, incur, assume or permit to exist (upon the happening of a contingency or otherwise) any Lien on or with respect to any property or asset (including, without limitation, any document or instrument in respect of goods or accounts receivable) of the Company or any such Subsidiary, whether now owned or held or hereafter acquired, or any income or profits therefrom, or assign or otherwise convey any right to receive income or profits, except:

(a) Liens for taxes, assessments or other governmental levies or charges not yet delinquent or which may be paid without penalty, or which are being actively contested in a Good Faith Contest;

(b) statutory Liens of landlords and Liens of carriers, warehousemen, mechanics and materialmen incurred in the ordinary course of business for sums that are not yet delinquent or which may be paid without penalty, or which are subject to a Good Faith Contest;

(c) Liens on Property of a Subsidiary to secure obligations of such Subsidiary to the Company;

(d) Liens (other than any Lien imposed by ERISA) incurred, or deposits made, in the ordinary course of business such as workers’ compensation Liens or statutory or legal obligation Liens or deposits to support an insurance program, provided, however, that such Liens or deposits were not incurred or made in connection with the borrowing of money, or the obtaining of advances or credit;

(e) minor survey exceptions or minor encumbrances, easements or reservations and related liens and incidental liens, that are necessary for the conduct of the operations of the Company and its Subsidiaries but were not incurred in connection with the borrowing of money or the obtaining of advances or credit, and which do not in the aggregate materially detract from the value of the Property of the Company or its Subsidiaries or materially impair the use thereof in the operation of the businesses of the Company and its Subsidiaries;

(f) Liens on contract advances and other related advances for which deposits have been received before services have been rendered;

(g) Liens incurred in connection with Non-Recourse Debt;

(h) cash deposited with issuing banks as collateral for letters of credit that are permitted under the Credit Agreement;

(i) Liens on assets consisting of interests in joint ventures or partnerships held by the Company or its Subsidiaries and the underlying assets in such joint ventures or partnerships granted to the other party in any such joint venture or partnership where the Company or such Subsidiary holds an interest in such joint venture or partnership of less than 50% so long as (a) no Default or Event of Default has occurred and is continuing, (b) the aggregate value of all assets subject to such Liens does not exceed 10% of Consolidated Equity and (c) the Company or such Subsidiary is granted a Lien in the joint venture or partnership interests and underlying assets held by the other party or parties in such joint venture or partnership;

(j) Liens existing on property at the time of its acquisition or existing on the property of any Person at the time such Person becomes a Subsidiary or is merged into or consolidated with the Company or any Subsidiary; provided that such Lien was not created in contemplation of such acquisition;

(k) Liens in favor of sureties issued for the benefit of the Company or any of its Subsidiaries in the ordinary course of their business;

(l) Liens consisting of (i) the delivery of cash collateral if and when required under Section 2.16 of the Credit Agreement or (ii) a pledge of stock in a Subsidiary in lieu of the delivery of a Subsidiary Guaranty (as contemplated by Section 6.10 of the Credit Agreement) so long as, in the case of this clause (ii), the Notes (and any guaranty delivered in connection therewith) shall concurrently be secured equally and ratably with such Debt under the Credit Agreement pursuant to documentation reasonably acceptable to the Required Holders in substance and in form, including, without limitation, an intercreditor agreement and opinions of counsel to the Company and/or any such Subsidiary, as the case may be, from counsel that is reasonably acceptable to the Required Holders; and

(m) other Liens securing Debt of the Company or any Subsidiary not otherwise permitted by clauses (a) through (l), provided that at the time of the creation or incurrence of such Lien and after giving effect to the incurrence of any Debt secured by such Lien Priority Debt shall not exceed 8% of Consolidated Total Assets (determined as of the end of the then most recently ended fiscal quarter), provided, further, that notwithstanding the foregoing, the Company shall not, and shall not permit any of its Subsidiaries to, secure pursuant to this Section 10.5(m) any Debt outstanding under or pursuant to any Material Credit Facility unless and until the Notes (and any guaranty delivered in connection therewith) shall concurrently be secured equally and ratably with such Debt pursuant to documentation reasonably acceptable to the Required Holders in substance and in form, including, without limitation, an intercreditor agreement and opinions of counsel to the Company and/or any such Subsidiary, as the case may be, from counsel that is reasonably acceptable to the Required Holders.

Section 10.6. Leverage Ratio. The Company will not permit at any time the Leverage Ratio to exceed 3.00 to 1.00.

Section 10.7. Consolidated Fixed Charge Coverage Ratio. The Company will not permit at any time the ratio of (a) the sum of Consolidated Cash Flow plus Consolidated Lease Expense to (b) the sum of Consolidated Interest Expense less the portion of Consolidated Interest Expense attributable to Non-Recourse Debt less any non-cash interest charges related to the MTA Judgment taken after the fiscal quarter in which the final MTA Judgment is entered by the court plus Consolidated Lease Expense, in each case for the four quarter fiscal period most recently ended, to be less than 2.00 to 1.00.

Section 10.8. Priority Debt. The Company will not permit at any time Priority Debt to exceed 8% of Consolidated Total Assets (determined as of the end of the then most recently ended fiscal quarter).

Although it will not be a Default or an Event of Default if the Company fails to comply with any provision of Section 10 before or after giving effect to the issuance of the Notes on a pro forma basis, if such a failure occurs, then any of the Purchasers may elect not to purchase the Notes on the date of Closing that is specified in Section 3.

SECTION 11. EVENTS OF DEFAULT.

An “Event of Default” shall exist if any of the following conditions or events shall occur and be continuing:

(a) the Company defaults in the payment of any principal or Make-Whole Amount, if any, on any Note when the same becomes due and payable, whether at maturity or at a date fixed for prepayment or by declaration or otherwise; or

(b) the Company defaults in the payment of any interest on any Note for more than five Business Days after the same becomes due and payable; or

(c) the Company defaults in the performance of or compliance with any term contained in Section 7.1(d), 10.6, 10.7 or 10.8; or

(d) the Company or any Subsidiary Guarantor defaults in the performance of or compliance with any term contained herein (other than those referred to in Sections 11(a), (b) and (c)) or in any Subsidiary Guaranty and such default is not remedied within 30 days after the earlier of (i) a Responsible Officer obtaining actual knowledge of such default and (ii) the Company receiving written notice of such default from any holder of a Note (any such written notice to be identified as a “notice of default” and to refer specifically to this Section 11(d)); or

(e) (i) any representation or warranty made in writing by or on behalf of the Company or by any officer of the Company in this Agreement or any writing furnished in connection with the transactions contemplated hereby proves to have been false or incorrect in any material respect on the date as of which made, or (ii) any representation or warranty made in writing by or on behalf of any Subsidiary Guarantor or by any officer of such Subsidiary Guarantor in any Subsidiary Guaranty or any writing furnished in connection with such Subsidiary Guaranty proves to have been false or incorrect in any material respect on the date as of which made; or

(f) (i) the Company or any Subsidiary is in default (as principal or as guarantor or other surety) in the payment of any principal of or premium or make-whole amount or interest on any Debt that is outstanding in an aggregate principal amount of at least $25,000,000 beyond any period of grace provided with respect thereto, or (ii) the Company or any Subsidiary is in default in the performance of or compliance with any term of any evidence of any Debt in an aggregate outstanding principal amount of at least $25,000,000 or of any mortgage, indenture or other agreement relating thereto or any other condition exists, and as a consequence of such default or condition such Debt has become, or has been declared (or one or more Persons are entitled to declare such Debt to be), due and payable before its stated maturity or before its regularly scheduled dates of payment, or (iii) as a consequence of the occurrence or continuation of any event or condition (other than the passage of time or the right of the holder of Debt to convert such Debt into equity interests), (x) the Company or any Subsidiary has become obligated to purchase or repay Debt before its regular maturity or before its regularly scheduled dates of payment in an aggregate outstanding principal amount of at least $25,000,000, or (y) one or more Persons have the right to require the Company or any Subsidiary so to purchase or repay such Debt; or

(g) the Company or any Subsidiary (i) is generally not paying, or admits in writing its inability to pay, its debts as they become due, (ii) files, or consents by answer or otherwise to the filing against it of, a petition for relief or reorganization or arrangement or any other petition in bankruptcy, for liquidation or to take advantage of any bankruptcy, insolvency, reorganization, moratorium or other similar law of any

jurisdiction, (iii) makes an assignment for the benefit of its creditors, (iv) consents to the appointment of a custodian, receiver, trustee or other officer with similar powers with respect to it or with respect to any substantial part of its property, (v) is adjudicated as insolvent or to be liquidated, or (vi) takes corporate action for the purpose of any of the foregoing; or

(h) a court or other Governmental Authority of competent jurisdiction enters an order appointing, without consent by the Company or any of its Subsidiaries, a custodian, receiver, trustee or other officer with similar powers with respect to it or with respect to any substantial part of its property, or constituting an order for relief or approving a petition for relief or reorganization or any other petition in bankruptcy or for liquidation or to take advantage of any bankruptcy or insolvency law of any jurisdiction, or ordering the dissolution, winding-up or liquidation of the Company or any of its Subsidiaries, or any such petition shall be filed against the Company or any of its Subsidiaries and such petition shall not be dismissed within 60 days; or

(i) one or more final judgments or orders for the payment of money, not fully covered by insurance, aggregating in excess of $25,000,000, including, without limitation, any such final order enforcing a binding arbitration decision, are rendered against one or more of the Company and its Subsidiaries and which judgments are not, within 60 days after entry thereof, bonded, discharged or stayed pending appeal, or are not discharged within 60 days after the expiration of such stay; or

(j) if (i) any Plan shall fail to satisfy the minimum funding standards of ERISA or the Code for any plan year or part thereof or a waiver of such standards or extension of any amortization period is sought or granted under section 412 of the Code, (ii) a notice of intent to terminate any Plan shall have been or is reasonably expected to be filed with the PBGC or the PBGC shall have instituted proceedings under ERISA section 4042 to terminate or appoint a trustee to administer any Plan or the PBGC shall have notified the Company or any ERISA Affiliate that a Plan may become a subject of any such proceedings, (iii) the sum of (x) the aggregate “amount of unfunded benefit liabilities” (within the meaning of section 4001(a)(18) of ERISA) under all Plans, determined in accordance with Title IV of ERISA, plus (y) the amount (if any) by which the aggregate present value of accrued benefit liabilities under all funded Non-U.S. Plans exceeds the aggregate current value of the assets of such Non-U.S. Plans allocable to such liabilities, shall exceed an amount that could reasonably be expected to have a Material Adverse Effect, (iv) the Company or any ERISA Affiliate shall have incurred or is reasonably expected to incur any liability pursuant to Title I or IV of ERISA or the penalty or excise tax provisions of the Code relating to employee benefit plans, (v) the Company or any ERISA Affiliate withdraws from any Multiemployer Plan, (vi) the Company or any Subsidiary establishes or amends any employee welfare benefit plan that provides post-employment welfare benefits in a manner that would increase the liability of the Company or any Subsidiary thereunder, (vii) the Company or any Subsidiary fails to administer or maintain a Non-U.S. Plan in compliance with the requirements of any and all applicable laws, statutes, rules, regulations or court orders or any Non-U.S. Plan is involuntarily terminated or wound up or (viii) the Company or any Subsidiary becomes

subject to the imposition of a financial penalty (which for this purpose shall mean any tax, penalty or other liability, whether by way of indemnity or otherwise) with respect to one or more Non-U.S. Plans; and any such event or events described in clauses (i) through (viii) above, either individually or together with any other such event or events, could reasonably be expected to have a Material Adverse Effect. As used in this Section 11(j), the terms “employee benefit plan” and “employee welfare benefit plan” shall have the respective meanings assigned to such terms in section 3 of ERISA; or

(k) any Subsidiary Guaranty shall cease to be in full force and effect, any Subsidiary Guarantor or any Person acting on behalf of any Subsidiary Guarantor shall contest in any manner the validity, binding nature or enforceability of any Subsidiary Guaranty, or the obligations of any Subsidiary Guarantor under any Subsidiary Guaranty are not or cease to be legal, valid, binding and enforceable in accordance with the terms of such Subsidiary Guaranty.

SECTION 12. REMEDIES ON DEFAULT, ETC.

Section 12.1. Acceleration. (a) If an Event of Default with respect to the Company described in paragraph (g) or (h) of Section 11 (other than an Event of Default described in clause (i) of paragraph (g) of Section 11 or described in clause (vi) of paragraph (g) of Section 11 by virtue of the fact that such clause encompasses clause (i) of paragraph (g) of Section 11 has occurred, all the Notes then outstanding shall automatically become immediately due and payable.

(b) If any other Event of Default has occurred and is continuing, the Required Holders may at any time at its or their option, by notice or notices to the Company, declare all the Notes then outstanding to be immediately due and payable.

(c) If any Event of Default described in paragraph (a) or (b) of Section 11 has occurred and is continuing, any holder or holders of Notes at the time outstanding affected by such Event of Default may at any time, at its or their option, by notice or notices to the Company, declare all the Notes held by it or them to be immediately due and payable.

Upon any Notes becoming due and payable under this Section 12.1, whether automatically or by declaration, such Notes will forthwith mature and the entire unpaid principal amount of such Notes, plus (x) all accrued and unpaid interest thereon (including, but not limited to, interest accrued thereon at the Default Rate) and (y) the Make-Whole Amount, if any, determined in respect of such principal amount (to the full extent permitted by applicable law), shall all be immediately due and payable, in each and every case without presentment, demand, protest or further notice, all of which are hereby waived. The Company acknowledges, and the parties hereto agree, that each holder of a Note has the right to maintain its investment in the Notes free from repayment by the Company (except as herein specifically provided for) and that the provision for payment of a Make-Whole Amount by the Company in the event that the Notes are prepaid or are accelerated as a result of an Event of Default, is intended to provide compensation for the deprivation of such right under such circumstances.

Section 12.2. Other Remedies. If any Default or Event of Default has occurred and is continuing, and irrespective of whether any Notes have become or have been declared immediately due and payable under Section 12.1, the holder of any Note at the time outstanding may proceed to protect and enforce the rights of such holder by an action at law, suit in equity or other appropriate proceeding, whether for the specific performance of any agreement contained herein or in any Note or Subsidiary Guaranty, or for an injunction against a violation of any of the terms hereof or thereof, or in aid of the exercise of any power granted hereby or thereby or by law or otherwise.

Section 12.3. Rescission. At any time after any Notes have been declared due and payable pursuant to Section 12.1(b) or (c), the Required Holders, by written notice to the Company, may rescind and annul any such declaration and its consequences if (a) the Company has paid all overdue interest on the Notes, all principal of and Make-Whole Amount, if any, on any Notes that are due and payable and are unpaid other than by reason of such declaration, and all interest on such overdue principal and Make-Whole Amount, if any, and (to the extent permitted by applicable law) any overdue interest in respect of the Notes, at the Default Rate, (b) neither the Company nor any other Person shall have paid any amounts which have become due solely by reason of such declaration, (c) all Events of Default and Defaults, other than non-payment of amounts that have become due solely by reason of such declaration, have been cured or have been waived pursuant to Section 17, and (d) no judgment or decree has been entered for the payment of any monies due pursuant hereto or to the Notes. No rescission and annulment under this Section 12.3 will extend to or affect any subsequent Event of Default or Default or impair any right consequent thereon.

Section 12.4. No Waivers or Election of Remedies, Expenses, Etc. No course of dealing and no delay on the part of any holder of any Note in exercising any right, power or remedy shall operate as a waiver thereof or otherwise prejudice such holder’s rights, powers or remedies. No right, power or remedy conferred by this Agreement, any Subsidiary Guaranty or any Note upon any holder thereof shall be exclusive of any other right, power or remedy referred to herein or therein or now or hereafter available at law, in equity, by statute or otherwise. Without limiting the obligations of the Company under Section 15, the Company will pay to the holder of each Note on demand such further amount as shall be sufficient to cover all costs and expenses of such holder incurred in any enforcement or collection under this Section 12, including, without limitation, reasonable attorneys’ fees, expenses and disbursements.

SECTION 13. REGISTRATION; EXCHANGE; SUBSTITUTION OF NOTES.

Section 13.1. Registration of Notes. The Company shall keep at its principal executive office a register for the registration and registration of transfers of Notes. The name and address of each holder of one or more Notes, each transfer thereof and the name and address of each transferee of one or more Notes shall be registered in such register. If any holder of one or more Notes is a nominee, then (a) the name and address of the beneficial owner of such Note or Notes shall also be registered in such register as an owner and holder thereof and (b) at any such beneficial owner’s option, either such beneficial owner or its nominee may execute any amendment, waiver or consent pursuant to this Agreement. Prior to due presentment for registration of transfer, the Person(s) in whose name any Note(s) shall be registered shall be

deemed and treated as the owner and holder thereof for all purposes hereof, and the Company shall not be affected by any notice or knowledge to the contrary. The Company shall give to any holder of a Note that is an Institutional Investor promptly upon request therefor, a complete and correct copy of the names and addresses of all registered holders of Notes.

Section 13.2. Transfer and Exchange of Notes. Upon surrender of any Note to the Company at the address and to the attention of the designated officer (all as specified in Section 18(iii)), for registration of transfer or exchange (and in the case of a surrender for registration of transfer accompanied by a written instrument of transfer duly executed by the registered holder of such Note or such holder’s attorney duly authorized in writing and accompanied by the relevant name, address and other information for notices of each transferee of such Note or part thereof), within ten Business Days thereafter, the Company shall execute and deliver, at the Company’s expense (except as provided below), one or more new Notes (as requested by the holder thereof) of the same Series in exchange therefor, in an aggregate principal amount equal to the unpaid principal amount of the surrendered Note; provided, however, that the Company shall not be required to execute any new Note, or register the transfer of any Note, to a transferee who is a Competitor of the Company or any Subsidiary. Each such new Note shall be payable to such Person as such holder may request and shall be substantially in the form of Schedule 1(a) or 1(b), as applicable. Each such new Note shall be dated and bear interest from the date to which interest shall have been paid on the surrendered Note or dated the date of the surrendered Note if no interest shall have been paid thereon. The Company may require payment of a sum sufficient to cover any stamp tax or governmental charge imposed in respect of any such transfer of Notes. Notes shall not be transferred in denominations of less than $500,000, provided that if necessary to enable the registration of transfer by a holder of its entire holding of Notes, one Note may be in a denomination of less than $500,000. Any transferee, by its acceptance of a Note registered in its name (or the name of its nominee), shall be deemed to have made the representation set forth in Section 6.2.

Section 13.3. Replacement of Notes. Upon receipt by the Company at the address and to the attention of the designated officer (all as specified in Section 18(iii)) of evidence reasonably satisfactory to it of the ownership of and the loss, theft, destruction or mutilation of any Note (which evidence shall be, in the case of an Institutional Investor, notice from such Institutional Investor of such ownership and such loss, theft, destruction or mutilation), and

(a) in the case of loss, theft or destruction, of indemnity reasonably satisfactory to it (provided that if the holder of such Note is, or is a nominee for, an original Purchaser or another holder of a Note with a minimum net worth of at least $50,000,000 or a Qualified Institutional Buyer, such Person’s own unsecured agreement of indemnity shall be deemed to be satisfactory), or

(b) in the case of mutilation, upon surrender and cancellation thereof,

within ten Business Days thereafter, the Company at its own expense shall execute and deliver, in lieu thereof, a new Note of the same Series, dated and bearing interest from the date to which interest shall have been paid on such lost, stolen, destroyed or mutilated Note or dated the date of such lost, stolen, destroyed or mutilated Note if no interest shall have been paid thereon.

SECTION 14. PAYMENTS ON NOTES.

Section 14.1. Place of Payment. Subject to Section 14.2, payments of principal, Make-Whole Amount, if any, and interest becoming due and payable on the Notes shall be made in New York, New York at the principal office of JPMorgan Chase Bank, N.A. in such jurisdiction. The Company may at any time, by notice to each holder of a Note, change the place of payment of the Notes so long as such place of payment shall be either the principal office of the Company in such jurisdiction or the principal office of a bank or trust company in such jurisdiction.

Section 14.2. Home Office Payment. So long as any Purchaser or its nominee shall be the holder of any Note, and notwithstanding anything contained in Section 14.1 or in such Note to the contrary, the Company will pay all sums becoming due on such Note for principal, Make-Whole Amount, if any, interest and all other amounts becoming due hereunder by the method and at the address specified for such purpose below such Purchaser’s name in Schedule B, or by such other method or at such other address as such Purchaser shall have from time to time specified to the Company in writing for such purpose, without the presentation or surrender of such Note or the making of any notation thereon, except that upon written request of the Company made concurrently with or reasonably promptly after payment or prepayment in full of any Note, such Purchaser shall surrender such Note for cancellation, reasonably promptly after any such request, to the Company at its principal executive office or at the place of payment most recently designated by the Company pursuant to Section 14.1. Prior to any sale or other disposition of any Note held by a Purchaser or its nominee, such Purchaser will, at its election, either endorse thereon the amount of principal paid thereon and the last date to which interest has been paid thereon or surrender such Note to the Company in exchange for a new Note or Notes of the same Series pursuant to Section 13.2. The Company will afford the benefits of this Section 14.2 to any Institutional Investor that is the direct or indirect transferee of any Note purchased by a Purchaser under this Agreement and that has made the same agreement relating to such Note as the Purchasers have made in this Section 14.2.

SECTION 15. EXPENSES, ETC.

Section 15.1. Transaction Expenses. Whether or not the transactions contemplated hereby are consummated, the Company will pay all costs and expenses (including reasonable attorneys’ fees of a special counsel and, if reasonably required by the Required Holders, local or other counsel) incurred by the Purchasers and each other holder of a Note in connection with such transactions and in connection with any amendments, waivers or consents under or in respect of this Agreement, any Subsidiary Guaranty or the Notes (whether or not such amendment, waiver or consent becomes effective), including, without limitation: (a) the costs and expenses incurred in enforcing or defending (or determining whether or how to enforce or defend) any rights under this Agreement, any Subsidiary Guaranty or the Notes or in responding to any subpoena or other legal process or informal investigative demand issued in connection with this Agreement, any Subsidiary Guaranty or the Notes, or by reason of being a holder of any Note, (b) the costs and expenses, including financial advisors’ fees, incurred in connection with the insolvency or bankruptcy of the Company or any Subsidiary or in connection with any work-out or restructuring of the transactions contemplated hereby and by the Notes and any Subsidiary Guaranty and (c) the costs and expenses incurred in connection with the initial filing of this Agreement and all related documents and financial information with the SVO provided, that such costs and expenses under this clause (c) shall not exceed $3,500.

Section 15.2. Survival. The obligations of the Company under this Section 15 will survive the payment or transfer of any Note, the enforcement, amendment or waiver of any provision of this Agreement, any Subsidiary Guaranty or the Notes, and the termination of this Agreement.

SECTION 16. SURVIVAL OF REPRESENTATIONS AND WARRANTIES; ENTIRE AGREEMENT.

All representations and warranties contained herein shall survive the execution and delivery of this Agreement and the Notes, the purchase or transfer by any Purchaser of any Note or portion thereof or interest therein and the payment of any Note, and may be relied upon by any subsequent holder of a Note, regardless of any investigation made at any time by or on behalf of such Purchaser or any other holder of a Note. All statements contained in any certificate or other instrument delivered by or on behalf of the Company pursuant to this Agreement shall be deemed representations and warranties of the Company under this Agreement. Subject to the preceding sentence, this Agreement, the Notes and any Subsidiary Guaranties embody the entire agreement and understanding between each Purchaser and the Company and supersede all prior agreements and understandings relating to the subject matter hereof.

SECTION 17. AMENDMENT AND WAIVER.

Section 17.1. Requirements. This Agreement and the Notes may be amended, and the observance of any term hereof or of the Notes may be waived (either retroactively or prospectively), only with the written consent of the Company and the Required Holders, except that:

(a) no amendment or waiver of any of Sections 1, 2, 3, 4, 5, 6 or 21 hereof, or any defined term (as it is used therein), will be effective as to any Purchaser unless consented to by such Purchaser in writing; and

(b) no amendment or waiver may, without the written consent of each Purchaser and the holder of each Note at the time outstanding, (i) subject to Section 12 relating to acceleration or rescission, change the amount or time of any prepayment or payment of principal of, or reduce the rate or change the time of payment or method of computation of (x) interest on the Notes or (y) the Make-Whole Amount, (ii) change the percentage of the principal amount of the Notes the holders of which are required to consent to any amendment or waiver or the principal amount of the Notes that the Purchasers are to purchase pursuant to Section 2 upon the satisfaction of the conditions to Closing that appear in Section 4, or (iii) amend any of Sections 8 (except as set forth in the second sentence of Section 8.2 and Section 17.1(c)), 11(a), 11(b), 12, 17 or 20.

Section 17.2. Solicitation of Holders of Notes.

(a) Solicitation. The Company will provide each Purchaser and each holder of a Note with sufficient information, sufficiently far in advance of the date a decision is required, to enable such Purchaser and such holder to make an informed and considered decision with respect to any proposed amendment, waiver or consent in respect of any of the provisions hereof or of the Notes or any Subsidiary Guaranty. The Company will deliver executed or true and correct copies of each amendment, waiver or consent effected pursuant to this Section 17 or any Subsidiary Guaranty to each Purchaser and each holder of a Note promptly following the date on which it is executed and delivered by, or receives the consent or approval of, the requisite Purchasers or holders of Notes.

(b) Payment. The Company will not directly or indirectly pay or cause to be paid any remuneration, whether by way of supplemental or additional interest, fee or otherwise, or grant any security or provide other credit support, to any Purchaser or holder of a Note as consideration for or as an inducement to the entering into by such Purchaser or holder of any waiver or amendment of any of the terms and provisions hereof or of any Subsidiary Guaranty or any Note unless such remuneration is concurrently paid, or security is concurrently granted or other credit support concurrently provided, on the same terms, ratably to each Purchaser and each holder of a Note even if such Purchaser or holder did not consent to such waiver or amendment.

(c) Consent in Contemplation of Transfer. Any consent given pursuant to this Section 17 or any Subsidiary Guaranty by a holder of a Note that has transferred or has agreed to transfer its Note to the Company, any Subsidiary or any Affiliate of the Company (either pursuant to a waiver under Section 17.1(c) or subsequent to Section 8.5 having been amended pursuant to Section 17.1(c)) in connection with such consent shall be void and of no force or effect except solely as to such holder, and any amendments effected or waivers granted or to be effected or granted that would not have been or would not be so effected or granted but for such consent (and the consents of all other holders of Notes that were acquired under the same or similar conditions) shall be void and of no force or effect except solely as to such holder.

Section 17.3. Binding Effect, etc. Any amendment or waiver consented to as provided in this Section 17 or any Subsidiary Guaranty applies equally to all Purchasers and holders of Notes and is binding upon them and upon each future holder of any Note and upon the Company without regard to whether such Note has been marked to indicate such amendment or waiver. No such amendment or waiver will extend to or affect any obligation, covenant, agreement, Default or Event of Default not expressly amended or waived or impair any right consequent thereon. No course of dealing between the Company and any Purchaser or holder of a Note and no delay in exercising any rights hereunder or under any Note or Subsidiary Guaranty shall operate as a waiver of any rights of any Purchaser or holder of such Note.

Section 17.4. Notes Held by Company, etc. Solely for the purpose of determining whether the holders of the requisite percentage of the aggregate principal amount of Notes then outstanding approved or consented to any amendment, waiver or consent to be given under this Agreement, any Subsidiary Guaranty or the Notes, or have directed the taking of any action provided herein or in any Subsidiary Guaranty or the Notes to be taken upon the direction of the holders of a specified percentage of the aggregate principal amount of Notes then outstanding, Notes directly or indirectly owned by the Company or any of its Affiliates shall be deemed not to be outstanding.

SECTION 18. NOTICES.

Except to the extent otherwise provided in Section 7.4, all notices and communications provided for hereunder shall be in writing and sent (a) by telecopy if the sender on the same day sends a confirming copy of such notice by an internationally recognized overnight delivery service (charges prepaid), or (b) by registered or certified mail with return receipt requested (postage prepaid), or (c) by an internationally recognized overnight delivery service (with charges prepaid). Any such notice must be sent:

(i) if to any Purchaser or its nominee, to such Purchaser or nominee at the address specified for such communications in Schedule B, or at such other address as such Purchaser or nominee shall have specified to the Company in writing,

(ii) if to any other holder of any Note, to such holder at such address as such other holder shall have specified to the Company in writing, or

(iii) if to the Company, to the Company at its address set forth at the beginning hereof to the attention of Executive Vice President and Chief Financial Officer, with a copy to the Vice President and Treasurer, or at such other address as the Company shall have specified to the holder of each Note in writing.

Notices under this Section 18 will be deemed given only when actually received.

SECTION 19. REPRODUCTION OF DOCUMENTS.

This Agreement and all documents relating thereto, including, without limitation, (a) consents, waivers and modifications that may hereafter be executed, (b) documents received by any Purchaser at the Closing (except the Notes themselves), and (c) financial statements, certificates and other information previously or hereafter furnished to any Purchaser, may be reproduced by such Purchaser by any photographic, photostatic, electronic, digital, or other similar process and such Purchaser may destroy any original document so reproduced. The Company agrees and stipulates that, to the extent permitted by applicable law, any such reproduction shall be admissible in evidence as the original itself in any judicial or administrative proceeding (whether or not the original is in existence and whether or not such reproduction was made by such Purchaser in the regular course of business) and any enlargement, facsimile or further reproduction of such reproduction shall likewise be admissible in evidence. This Section 19 shall not prohibit the Company or any other holder of Notes from contesting any such reproduction to the same extent that it could contest the original, or from introducing evidence to demonstrate the inaccuracy of any such reproduction.

SECTION 20. CONFIDENTIAL INFORMATION.

For the purposes of this Section 20, “Confidential Information” means information delivered to any Purchaser by or on behalf of the Company or any Subsidiary in connection with the transactions contemplated by or otherwise pursuant to this Agreement that is proprietary in nature and that was clearly marked or labeled or otherwise adequately identified when received by such Purchaser as being confidential information of the Company or such Subsidiary, provided that such term does not include information that (a) was publicly known or otherwise known to such Purchaser prior to the time of such disclosure (provided, however, that to such Purchaser’s actual knowledge, the source of such information was not, at the time of disclosure to such Purchaser, bound by a confidentiality agreement with the Company or its Subsidiaries relating to such information), (b) subsequently becomes publicly known through no act or omission by such Purchaser or any Person acting on such Purchaser’s behalf, (c) otherwise becomes known to such Purchaser other than through disclosure by the Company or any Subsidiary (provided, however, that to such Purchaser’s actual knowledge, the source of such information was not, at the time of disclosure to such Purchaser, bound by a confidentiality agreement with the Company or its Subsidiaries relating to such information) or (d) constitutes financial statements delivered to such Purchaser under Section 7.1 that are otherwise publicly available. Each Purchaser will maintain the confidentiality of such Confidential Information in accordance with procedures adopted by such Purchaser in good faith to protect confidential information of third parties delivered to such Purchaser, provided that such Purchaser may deliver or disclose Confidential Information to (i) its directors, officers, employees, agents, attorneys, trustees and affiliates (to the extent such disclosure reasonably relates to the administration of the investment represented by its Notes and such individuals are bound by the terms of this Section 20 or agree to hold confidential the Confidential Information substantially in accordance with the terms of this Section 20), (ii) its auditors, financial advisors and other professional advisors who agree to hold confidential the Confidential Information substantially in accordance with this Section 20, (iii) any other holder of any Note, (iv) any Institutional Investor to which it sells or offers to sell such Note or any part thereof or any participation therein (if such Person has agreed in writing prior to its receipt of such Confidential Information to be bound by this Section 20), (v) any Person from which it offers to purchase any Security of the Company (if such Person has agreed in writing prior to its receipt of such Confidential Information to be bound by this Section 20), (vi) any federal or state regulatory authority having jurisdiction over such Purchaser, (vii) the NAIC or the SVO or, in each case, any similar organization, or any nationally recognized rating agency that requires access to information about such Purchaser’s investment portfolio, or (viii) any other Person to which such delivery or disclosure may be necessary or appropriate (w) to effect compliance with any law, rule, regulation or order applicable to such Purchaser, (x) in response to any subpoena or other legal process, (y) in connection with any litigation to which such Purchaser is a party or (z) if an Event of Default has occurred and is continuing, to the extent such Purchaser may reasonably determine such delivery and disclosure to be necessary or appropriate in the enforcement or for the protection of the rights and remedies under such Purchaser’s Notes, this Agreement or any Subsidiary Guaranty. Each holder of a Note, by its acceptance of a Note, will be deemed to have agreed to be bound by and to be entitled to the benefits of this Section 20 as though it were a party to this Agreement. On reasonable request by the Company in connection with the delivery to any holder of a Note of information required to be delivered to such holder under this Agreement or requested by such holder (other than a holder that is a party to this Agreement or its nominee), such holder will enter into an agreement with the Company embodying this Section 20.

In the event that as a condition to receiving access to information relating to the Company or its Subsidiaries in connection with the transactions contemplated by or otherwise pursuant to this Agreement, any Purchaser or holder of a Note is required to agree to a confidentiality undertaking (whether through IntraLinks, another secure website, a secure virtual workspace or otherwise) which is different from this Section 20, this Section 20 shall not be amended thereby and, as between such Purchaser or such holder and the Company, this Section 20 shall supersede any such other confidentiality undertaking.

SECTION 21. SUBSTITUTION OF PURCHASER.

Each Purchaser shall have the right to substitute any one of its Affiliates or another Purchaser or any one of such other Purchaser’s Affiliates (a “Substitute Purchaser”) as the purchaser of the Notes that it has agreed to purchase hereunder, by written notice to the Company, which notice shall be signed by both such Purchaser and such Substitute Purchaser, shall contain such Substitute Purchaser’s agreement to be bound by this Agreement and shall contain a confirmation by such Substitute Purchaser of the accuracy with respect to it of the representations set forth in Section 6. Upon receipt of such notice, any reference to such Purchaser in this Agreement (other than in this Section 21), shall be deemed to refer to such Substitute Purchaser in lieu of such original Purchaser. In the event that such Substitute Purchaser is so substituted as a Purchaser hereunder and such Substitute Purchaser thereafter transfers to such original Purchaser all of the Notes then held by such Substitute Purchaser, upon receipt by the Company of notice of such transfer, any reference to such Substitute Purchaser as a “Purchaser” in this Agreement (other than in this Section 21), shall no longer be deemed to refer to such Substitute Purchaser, but shall refer to such original Purchaser, and such original Purchaser shall again have all the rights of an original holder of the Notes under this Agreement.

SECTION 22. MISCELLANEOUS.

Section 22.1. Successors and Assigns. All covenants and other agreements contained in this Agreement by or on behalf of any of the parties hereto bind and inure to the benefit of their respective successors and assigns (including, without limitation, any subsequent holder of a Note) whether so expressed or not.

Section 22.2. Accounting Terms. (a) All accounting terms used herein which are not expressly defined in this Agreement have the meanings respectively given to them in accordance with GAAP. Except as otherwise specifically provided herein, (i) all computations made pursuant to this Agreement shall be made in accordance with GAAP, and (ii) all financial statements shall be prepared in accordance with GAAP. For purposes of determining compliance with the financial covenants contained in this Agreement, any election by the Company to measure an item of Debt using an amount other than par (as permitted by Financial Accounting Standards Board Accounting Standards Codification Topic No. 825-10-25 – Fair Value Option or any similar accounting standard) shall be disregarded and such determination shall be made as if such election had not been made.

(b) Notwithstanding the foregoing, if the Company notifies the holders of Notes that, in the Company’s reasonable opinion, or if the Required Holders notify the Company that, in the Required Holders’ reasonable opinion, as a result of a change in GAAP after the date of this Agreement, any negative covenant or any of the defined terms used therein no longer apply as intended such that such covenants are materially more or less restrictive to the Company than as at the date of this Agreement, the Company shall negotiate in good faith with the holders of Notes to make any necessary adjustments to such covenant or defined term to provide the holders of the Notes with substantially the same protection as such covenant provided prior to the relevant change in GAAP. Until the Company and the Required Holders so agree to reset, amend or establish alternative covenants or defined terms, (i) the negative covenants, together with the relevant defined terms, shall continue to apply and compliance therewith shall be determined on the basis of GAAP in effect at the date of this Agreement and (ii) each set of financial statements delivered to holders of Notes during such time shall include detailed reconciliations reasonably satisfactory to the Required Holders as to the effect of such change in GAAP.

Section 22.3. Severability. Any provision of this Agreement that is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall (to the full extent permitted by law) not invalidate or render unenforceable such provision in any other jurisdiction.

Section 22.4. Construction, etc. Each covenant contained herein shall be construed (absent express provision to the contrary) as being independent of each other covenant contained herein, so that compliance with any one covenant shall not (absent such an express contrary provision) be deemed to excuse compliance with any other covenant. Where any provision herein refers to action to be taken by any Person, or which such Person is prohibited from taking, such provision shall be applicable whether such action is taken directly or indirectly by such Person.

Section 22.5. Counterparts. This Agreement may be executed in any number of counterparts, each of which shall be an original but all of which together shall constitute one instrument. Each counterpart may consist of a number of copies hereof, each signed by less than all, but together signed by all, of the parties hereto.

Section 22.6. Governing Law. This Agreement shall be construed and enforced in accordance with, and the rights of the parties shall be governed by, the law of the State of New York excluding choice-of-law principles of the law of such State that would permit the application of the laws of a jurisdiction other than such State.

Section 22.7. Jurisdiction and Process; Waiver of Jury Trial. (a) The Company irrevocably submits to the non-exclusive jurisdiction of any New York State or federal court sitting in the Borough of Manhattan, The City of New York, over any suit, action or proceeding arising out of or relating to this Agreement or the Notes. To the fullest extent permitted by applicable law, the Company irrevocably waives and agrees not to assert, by way of motion, as a defense or otherwise, any claim that it is not subject to the jurisdiction of any such court, any objection that it may now or hereafter have to the laying of the venue of any such suit, action or proceeding brought in any such court and any claim that any such suit, action or proceeding brought in any such court has been brought in an inconvenient forum.

(b) The Company consents to process being served by or on behalf of any holder of Notes in any suit, action or proceeding of the nature referred to in Section 22.7(a) by mailing a copy thereof by registered or certified mail (or any substantially similar form of mail), postage prepaid, return receipt requested, to it at its address specified in Section 18 or at such other address of which such holder shall then have been notified pursuant to said Section. The Company agrees that such service upon receipt (i) shall be deemed in every respect effective service of process upon it in any such suit, action or proceeding and (ii) shall, to the fullest extent permitted by applicable law, be taken and held to be valid personal service upon and personal delivery to it. Notices hereunder shall be conclusively presumed received as evidenced by a delivery receipt furnished by the United States Postal Service or any reputable commercial delivery service.

(c) Nothing in this Section 22.7 shall affect the right of any holder of a Note to serve process in any manner permitted by law, or limit any right that the holders of any of the Notes may have to bring proceedings against the Company in the courts of any appropriate jurisdiction or to enforce in any lawful manner a judgment obtained in one jurisdiction in any other jurisdiction.

(d) THE PARTIES HERETO HEREBY WAIVE TRIAL BY JURY IN ANY ACTION BROUGHT ON OR WITH RESPECT TO THIS AGREEMENT, THE NOTES OR ANY OTHER DOCUMENT EXECUTED IN CONNECTION HEREWITH OR THEREWITH.

*    *    *    *    *

If you are in agreement with the foregoing, please sign the form of agreement on a counterpart of this Agreement and return it to the Company, whereupon this Agreement shall become a binding agreement between you and the Company.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

This Agreement is hereby

accepted and agreed to as

of the date hereof.

DEFINED TERMS

As used herein, the following terms have the respective meanings set forth below or set forth in the Section hereof following such term:

“Acquired Subsidiary Debt” means all Debt of any Person which becomes a Subsidiary after the date of Closing or is consolidated with or merged into a Subsidiary after the date of Closing and which (i) is outstanding on the date such Person becomes a Subsidiary (or such Person is at such time contractually bound, in writing, to incur such Debt), and (ii) has not been (or is not being) incurred, extended or renewed in contemplation of such Person becoming a Subsidiary.

“Affiliate” means, at any time, and with respect to any Person, any other Person that at such time directly or indirectly through one or more intermediaries Controls, or is Controlled by, or is under common Control with, such first Person, and, with respect to the Company, shall include any Person beneficially owning or holding, directly or indirectly, 10% or more of any class of voting or equity interests of the Company or any Subsidiary or any Person of which the Company and its Subsidiaries beneficially own or hold, in the aggregate, directly or indirectly, 10% or more of any class of voting or equity interests. As used in this definition, “Control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a Person, whether through the ownership of voting securities, by contract or otherwise. Unless the context otherwise clearly requires, any reference to an “Affiliate” is a reference to an Affiliate of the Company.

“Agreement” means this Agreement, including all Schedules attached to this Agreement, as it may be amended, restated, supplemented or otherwise modified from time to time.

“Anti-Corruption Laws” is defined in Section 5.16(d)(1).

“Anti-Money Laundering Laws” is defined in Section 5.16(c).

“Asset Disposition” means any Transfer except:

(a) any

(1) Transfer from a Subsidiary to the Company or a Wholly-Owned Subsidiary; and

(2) Transfer from the Company to a Wholly-Owned Subsidiary;

so long as immediately before and immediately after the consummation of any such Transfer and after giving effect thereto, no Default or Event of Default shall exist; and

(b) any Transfer made in the ordinary course of business and involving only property that is either (1) inventory held for sale or (2) equipment, fixtures, supplies or materials no longer required in the operation of the business of the Company or any of its Subsidiaries or that is obsolete.

SCHEDULE A

(to Note Purchase Agreement)

“Asset Disposition Prepayment Date” is defined in Section 8.8(a).

“Asset Disposition Prepayment Event” is defined in Section 8.8(a).

“Blocked Person” is defined in Section 5.16(a).

“Business Day” means (a) for the purposes of Section 8.6 only, any day other than a Saturday, a Sunday or a day on which commercial banks in New York City are required or authorized to be closed, and (b) for the purposes of any other provision of this Agreement, any day other than a Saturday, a Sunday or a day on which commercial banks in New York, New York or Los Angeles, California are required or authorized to be closed.

“Capitalized Lease Obligation” means any rental obligation which, under GAAP, is or will be required to be capitalized on the books of the Company or any Subsidiary, taken at the amount thereof accounted for as indebtedness (net of interest expense) in accordance with such principles.

“Capital Lease” means, at any time, a lease with respect to which the lessee is required concurrently to recognize the acquisition of an asset and the incurrence of a liability in accordance with GAAP.

“Change in OFAC Sanctions” is defined in Section 8.7.

“Change of Control” means an event or series of events by which the ESOP Trust shall fail to own beneficially and of record at least 50.1% of the capital stock of the Company.

“CISADA” means the Comprehensive Iran Sanctions, Accountability and Divestment Act.

“Closing” is defined in Section 3.

“Code” means the Internal Revenue Code of 1986, as amended from time to time, and the rules and regulations promulgated thereunder from time to time.

“Company” means Parsons Corporation, a Delaware corporation or any successor that becomes such in the manner prescribed in Section 10.2.

“Competitor” means any Person (other than any Purchaser) who is substantially engaged in the businesses of the Company or any Subsidiary as more fully described in the Memorandum and/or other activities reasonably related thereto provided that:

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(a) the provision of investment advisory services by a Person to a Plan or Non-U.S. Plan which is owned or controlled by a Person which would otherwise be a Competitor shall not of itself cause the Person providing such services to be deemed to be a Competitor if such Person has established procedures which will prevent confidential information supplied to such Person by any member of the group from being transmitted or otherwise made available to such Plan or Non-U.S. Plan or Person owning or controlling such Plan or Non-U.S. Plan; and

(b) in no event shall an Institutional Investor which maintains passive investments in any Person which is a Competitor be deemed a Competitor it being agreed that the normal administration of the investment and enforcement thereof shall be deemed not to cause such Institutional Investor to be a “Competitor”.

“Confidential Information” is defined in Section 20.

“Consolidated Cash Flow” means, for any period, (a) Consolidated Net Earnings plus (b) Consolidated Depreciation and Amortization plus (c) Consolidated Interest Expense plus (d) Deferred Tax Expenses plus (e) Non-Cash ESOP Expenses of the Company and its Subsidiaries plus (f) non-cash charges related to the MTA Judgment in an aggregate amount not to exceed the MTA Judgment Amount, excluding, however, items (a) through (e) above derived from or attributable to Non-Recourse Investments or Non-Recourse Debt.

Consolidated Cash Flow for any measurement period shall: include items (a) through (e) above for (i) any Person which becomes a Subsidiary of the Company or is merged with and into the Company or any of its Subsidiaries during such measurement period or (ii) any identifiable business unit or division of a Person which is acquired by the Company or one of its Subsidiaries during such measurement period, in either case (A) as if such Person or business unit or division were owned by the Company or one of its Subsidiaries on the first day of such measurement period and (B) only if the Company has provided the holders of the Notes with the most recent year-end financial statements of such Person or business unit or division of such Person, which shall have been audited by an independent certified public accounting firm reasonably satisfactory to the Required Holders; but exclude items (a) through (e) above for any Person or identifiable business unit or division of a Person which is disposed of by the Company or one of its Subsidiaries during such measurement period.

“Consolidated Debt” means, without duplication, all Debt of the Company and its Subsidiaries on a consolidated basis, excluding (a) inter-company indebtedness between the Company and a Subsidiary or between any two or more Subsidiaries, and (b) any Non-Recourse Debt.

“Consolidated Depreciation and Amortization” means, for any period, the depreciation and amortization of the Company and its Subsidiaries on a consolidated basis, determined in accordance with GAAP, but in any event to include impairment of goodwill for such period.

“Consolidated Equity” means total assets less total liabilities (including, without limitation, Consolidated Debt) of the Company and its Subsidiaries on a consolidated basis determined in accordance with GAAP excluding, however, Consolidated Equity attributable to Non-Recourse Investments.

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“Consolidated Interest Expense” means, for any period, all interest expense, including, without limitation, all commissions, discounts or related amortization and other fees and charges with respect to letters of credit and bankers’ acceptance financing for borrowed money indebtedness and the net costs associated with Hedge Agreements in respect of interest rates, amortization of debt expense and original issue discount and the interest portion of any deferred payment obligation, calculated in accordance with the effective interest method, of the Company and its Subsidiaries on a consolidated basis determined in accordance with GAAP.

“Consolidated Lease Expense” means for any period (a) lease expense minus (b) lease income from third parties for the Company and its Subsidiaries on a consolidated basis determined in accordance with GAAP excluding, however, Consolidated Lease Expense attributable to Non- Recourse Investments.

“Consolidated Net Earnings” means gross revenues less all expenses, including tax expense and other proper charges of the Company and its Subsidiaries on a consolidated basis determined in accordance with GAAP; provided that Consolidated Net Earnings shall not include: (a) extraordinary gains or losses; (b) any gains (or losses) in excess of $300,000 in the aggregate over losses (or gains) resulting from the sale, conversion or other disposition of fixed assets; (c) undistributed earnings from investments in entities other than Subsidiaries; (d) gains or losses arising from changes in accounting principles; and (e) any gains or losses resulting from the retirement or extinguishment of Debt, all determined in accordance with GAAP.

“Consolidated Total Assets” means the consolidated total assets of the Company and its Subsidiaries as shown on the most recent consolidated balance sheet of the Company and its Subsidiaries, determined on a consolidated basis in accordance with GAAP.

“Controlled Entity” means (i) any of the Subsidiaries of the Company and any of their or the Company’s respective Controlled Affiliates and (ii) if the Company has a parent company, such parent company and its Controlled Affiliates. As used in this definition, “Control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a Person, whether through the ownership of voting securities, by contract or otherwise.

“Credit Agreement” means the Fourth Amended and Restated Credit Agreement dated as of November 20, 2013 by and among the Company, as Borrower, Union Bank, N.A., as Administrative Agent, and the lenders identified therein, including any renewals, extensions, amendments, supplements, restatements, replacements or refinancings thereof.

“Debt” means, with respect to any Person, without duplication, the sum of (a) indebtedness of such Person for borrowed money, (b) Capitalized Lease Obligations of such Person, (c) indebtedness secured by a Lien on property owned by such Person (whether or not it has assumed or otherwise become liable for such indebtedness), (d) liabilities of such Person with respect to the deferred purchase price of property, (e) redemption obligations with respect to mandatorily redeemable preferred stock of such Person (other than preferred stock in existence as of the date hereof), (f) if such Person is a Subsidiary, all preferred stock of such Person, (g) reimbursement obligations of such Person with respect to unreimbursed drawings under letters of

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credit (other than Financial Letters of Credit), (h) reimbursement obligations of such Person equal to the face amount of all outstanding Financial Letters of Credit, (i) all net obligations and liabilities under Hedge Agreements to the extent due and payable as a result of a termination event or event of default under such Hedge Agreements and (j) guaranties or other contingent obligations of such Person with respect to liabilities of a type described in any of clauses (a) through (i) hereof.

“Debt Prepayment Application” means, with respect to any Transfer of property, the application by the Company or its Subsidiaries of cash in an amount equal to the Net Proceeds Amount with respect to such Transfer to pay Senior Debt of the Company (other than Senior Debt owing to any of its Subsidiaries or any Affiliate and Senior Debt in respect of any revolving credit or similar credit facility providing the Company with the right to obtain loans or other extensions of credit from time to time, except to the extent that in connection with such payment of Senior Debt the availability of credit under such credit facility is permanently reduced by an amount not less than the amount of such proceeds applied to the payment of such Senior Debt); provided that in the course of making such application the Company shall offer to prepay each outstanding Note in accordance with Section 8.8 in a principal amount that equals the Ratable Portion for such Note.

“Default” means an event or condition the occurrence or existence of which would, with the lapse of time or the giving of notice or both, become an Event of Default.

“Default Rate” means that rate of interest that is the greater of (i) 2% per annum above the rate of interest stated in clause (a) of the first paragraph of the Notes or (ii) 2% over the rate of interest publicly announced by JPMorgan Chase Bank, N.A. in New York, New York as its “base” or “prime” rate.

“Deferred Tax Expenses” means, for any period, deferred taxes of the Company and its Subsidiaries on a consolidated basis determined in accordance with GAAP.

“Disclosure Documents” is defined in Section 5.3.

“EDGAR” means the SEC’s Electronic Data Gathering, Analysis and Retrieval System or any successor SEC electronic filing system for such purposes.

“Environmental Laws” means any and all federal, state, local, and foreign statutes, laws, regulations, ordinances, rules, judgments, orders, decrees, permits, concessions, grants, franchises, licenses, agreements or governmental restrictions relating to pollution and the protection of the environment or the release of any materials into the environment, including but not limited to those related to Hazardous Materials.

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended from time to time, and the rules and regulations promulgated thereunder from time to time in effect.

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“ERISA Affiliate” means any trade or business (whether or not incorporated) that is treated as a single employer together with the Company under section 414 of the Code.

“ESOP” means Parsons Corporation Employee Stock Ownership Plan.

“ESOP Trust” means the Trust established under the ESOP.

“Event of Default” is defined in Section 11.

“Fair Market Value” means at any time and with respect to any property, the sale value of such property that would be realized in an arm’s-length sale at such time between an informed and willing buyer and an informed and willing seller (neither being under a compulsion to buy or sell).

“Federal Reserve Board” means the Board of Governors of the Federal Reserve System or any Governmental Authority succeeding to its functions.

“Financial Letter of Credit” means any standby letter of credit covering the potential default of a financial contractual obligation, and includes without limitation all letters of credit required to be classified as such by the Federal Reserve Board or by the Office of the Comptroller of the Currency.

“Form 10-K” is defined in Section 7.1(b).

“Form 10-Q” is defined in Section 7.1(a).

“GAAP” means generally accepted accounting principles as in effect from time to time in the United States of America.

“Good Faith Contest” is defined in Section 9.4.

“Governmental Authority” means

(a) the government of

(i) the United States of America or any state or other political subdivision thereof, or

(ii) any other jurisdiction in which the Company or any Subsidiary conducts all or any part of its business, or which asserts jurisdiction over any properties of the Company or any Subsidiary, or

(b) any entity exercising executive, legislative, judicial, regulatory or administrative functions of, or pertaining to, any such government.

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“Governmental Official” means any governmental official or employee, employee of any government-owned or government-controlled entity, political party, any official of a political party, candidate for political office, official of any public international organization or anyone else acting in an official capacity.

“Hazardous Materials” means any and all pollutants, toxic or hazardous wastes or other substances that might pose a hazard to health and safety, the removal of which may be required or the generation, manufacture, refining, production, processing, treatment, storage, handling, transportation, transfer, use, disposal, release, discharge, spillage, seepage or filtration of which is or shall be restricted, prohibited or penalized by any applicable law including, but not limited to, asbestos, urea formaldehyde foam insulation, polychlorinated biphenyls, petroleum, petroleum products, lead based paint, radon gas or similar restricted, prohibited or penalized substances.

“Hedge Agreement” means any agreement with respect to any swap, forward, future or derivative transaction or option or similar agreement involving, or settled by reference to, one or more rates, currencies, commodities, equity or debt instruments or securities, or economic, financial or pricing indices or measures of economic, financial or pricing risk or value or any similar transaction or any combination of these transactions.

“holder” means, with respect to any Note, the Person in whose name such Note is registered in the register maintained by the Company pursuant to Section 13.1, provided, however, that if such Person is a nominee, then for the purposes of Sections 7, 12, 17.2 and 18 and any related definitions in this Schedule A, “holder” shall mean the beneficial owner of such Note whose name and address appears in such register.

“INHAM Exemption” is defined in Section 6.2(e).

“Institutional Investor” means (a) any Purchaser of a Note, (b) any holder of a Note holding (together with one or more of its affiliates) more than 10% of the aggregate principal amount of the Notes then outstanding, (c) any bank, trust company, savings and loan association or other financial institution, any pension plan, any investment company, any insurance company, any broker or dealer, or any other similar financial institution or entity, regardless of legal form, and (d) any Related Fund of any holder of any Note.

“Joinder” means a Joinder to Subsidiary Guaranty substantially in the form of Exhibit A attached to the form of Subsidiary Guaranty attached to this Agreement as Schedule C.

“Leverage Ratio” means, as of any date of determination, the ratio of (a) Consolidated Debt to (b) Consolidated Cash Flow for the four fiscal quarters ending on such date.

“Lien” means, with respect to any Person, any mortgage, lien, pledge, charge, security interest or other encumbrance, or any interest or title of any vendor, lessor, lender or other secured party to or of such Person under any conditional sale or other title retention agreement or Capital Lease, upon or with respect to any property or asset of such Person (including in the case of stock, stockholder agreements, voting trust agreements and all similar arrangements).

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“Line of Business” means the business of providing architectural, technical, engineering, program management, construction, construction management, project development and related services.

“Make-Whole Amount” is defined in Section 8.6.

“Material” means material in relation to the business, operations, affairs, financial condition, assets, properties, or prospects of the Company and its Subsidiaries taken as a whole.

“Material Adverse Effect” means a material adverse effect on (a) the business, operations, affairs, financial condition, assets or properties of the Company and its Subsidiaries taken as a whole, (b) the ability of the Company to perform its obligations under this Agreement and the Notes, (c) the ability of any Subsidiary Guarantor to perform its obligations under its Subsidiary Guaranty, or (d) the validity or enforceability of this Agreement, the Notes or any Subsidiary Guaranty.

“Material Credit Facility” means, as to the Company and its Subsidiaries,

(a) the Credit Agreement, including any renewals, extensions, amendments, supplements, restatements, replacements or refinancing thereof; and

(b) any other agreement(s) creating or evidencing indebtedness for borrowed money entered into on or after the date of Closing by the Company or any Subsidiary, or in respect of which the Company or any Subsidiary is an obligor or otherwise provides a guarantee or other credit support (“Credit Facility”), in a principal amount outstanding or available for borrowing equal to or greater than $150,000,000 (or the equivalent of such amount in the relevant currency of payment, determined as of the date of the closing of such facility based on the exchange rate of such other currency); and if no Credit Facility or Credit Facilities equal or exceed such amounts, then the largest Credit Facility shall be deemed to be a Material Credit Facility.

“Maturity Date” is defined in the first paragraph of each Note.

“Memorandum” is defined in Section 5.3.

“MTA Judgment Amount” means (i) as of the date of Closing, $129,067,248.76 or (ii) as of the date that a final judgment is entered by the court with respect to the MTA Judgment, an amount equal to the final judgment amount, including accrued interest to that date, but in no event shall such final judgment amount exceed $140,000,000.

“MTA Judgment” means the preliminary judgment rendered against the Company in litigation with the Los Angeles County Metropolitan Transportation Authority in the amount of $129,067,248.76, which includes damages and interest through October 31, 2013.

“Multiemployer Plan” means any Plan that is a “multiemployer plan” (as such term is defined in section 4001(a)(3) of ERISA).

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“NAIC” means the National Association of Insurance Commissioners or any successor thereto.

“Net Proceeds Amount” means, with respect to any Transfer of any asset by the Company or any Subsidiary thereof, an amount equal to the difference of:

(a) the aggregate amount of consideration (valued at the fair market value thereof by the Company or such Subsidiary in good faith) received by the Company or Subsidiary in respect of such Transfer, minus

(b) all applicable taxes and all ordinary and reasonable out-of-pocket costs and expenses actually incurred by the Company or Subsidiary in connection with such Transfer.

“Non-Cash ESOP Expense” means, for any period, the amount of non-cash contributions made to the ESOP by the Company.

“Non-Guarantor Subsidiary” means any Subsidiary that has not executed and delivered a Subsidiary Guaranty on the date hereof or pursuant to Section 9.7.

“Non-Recourse Debt” means either (a) Debt existing on the date of the Closing and listed on Schedule D or (b) Debt, including non-recourse property Debt, non-recourse project Debt and non-recourse military family housing Debt incurred after the date of the Closing with respect to which:

(i) the lender thereof has no direct or indirect recourse to either (A) the Company or any of its Subsidiaries (other than to any single-purpose Subsidiary whose sole asset is the property securing such Non-Recourse Debt), whether by means of judicial foreclosure or otherwise, or (B) any property of the Company or any of its Subsidiaries other than the property securing such Non-Recourse Debt; and

(ii) neither the Company nor any of its Subsidiaries has any obligations of the type described in subsection (i) of the definition of Debt, including without limitation, reimbursement obligations under the letters of credit relating to such Debt.

“Non-Recourse Investments” means the property owned directly or indirectly by the Company and its Subsidiaries as of the date of the Closing and listed on Schedule D hereto and any property acquired by the Company or any of its Subsidiaries after the date of the Closing with Non- Recourse Debt and which secures such Non-Recourse Debt.

“Non-U.S. Plan” means any plan, fund or other similar program that (a) is established or maintained outside the United States of America by the Company or any Subsidiary primarily for the benefit of employees of the Company or one or more Subsidiaries residing outside the United States of America, which plan, fund or other similar program provides, or results in, retirement income, a deferral of income in contemplation of retirement or payments to be made upon termination of employment, and (b) is not subject to ERISA or the Code.

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“Notes” is defined in Section 1.

“OFAC” is defined in Section 5.16(a).

“OFAC Change Event” is defined in Section 8.7.

“OFAC Change Notice” is defined in Section 8.7.

“OFAC Event Response Date” is defined in Section 8.7.

“OFAC Listed Person” is defined in Section 5.16(a).

“OFAC Sanctions Program” means any economic or trade sanction that OFAC is responsible for administering and enforcing. A list of OFAC Sanctions Programs may be found at http://www.treasury.gov/resource-center/sanctions/Programs/Pages/Programs.aspx.

“Officer’s Certificate” means a certificate of a Senior Financial Officer or of any other officer of the Company whose responsibilities extend to the subject matter of such certificate.

“PBGC” means the Pension Benefit Guaranty Corporation referred to and defined in ERISA or any successor thereto.

“Person” means an individual, partnership, corporation, limited liability company, association, trust, unincorporated organization, business entity or Governmental Authority.

“Plan” means an “employee benefit plan” (as defined in section 3(3) of ERISA) subject to Title I of ERISA that is or, within the preceding five years, has been established or maintained, or to which contributions are or, within the preceding five years, have been made or required to be made, by the Company or any ERISA Affiliate or with respect to which the Company or any ERISA Affiliate may have any liability.

“Preferred Stock” means any class of capital stock of a Person that is preferred over any other class of capital stock (or similar equity interests) of such Person as to the payment of dividends or the payment of any amount upon liquidation or dissolution of such Person.

“Priority Debt” means at any time the sum of:

(a) Debt of the Company or any Subsidiaries secured by Liens not otherwise permitted by Sections 10.5(a) through (l), plus (but without duplication)

(b) Debt of Subsidiaries other than:

(i) Debt of Subsidiaries existing as of the date hereof and described on Schedule 5.15 (and any renewals, extension, or replacement thereof without increase in the principal amount thereof);

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(ii) Debt of Subsidiaries owing to the Company or any Subsidiary;

(iii) Acquired Subsidiary Debt (and any renewal, extension or replacement thereof without increase in the principal amount thereof), provided that immediately after such acquired Subsidiary becomes a Subsidiary, no Default or Event of Default shall exist;

(iv) Debt of Subsidiary Guarantors; and

(v) Debt of Subsidiaries secured by Liens permitted by Section 10.5(a) through (l), inclusive.

“Property,” “Properties,” “property” or “properties” means, unless otherwise specifically limited, real or personal property of any kind, tangible or intangible, choate or inchoate.

“Property Reinvestment Application” means, with respect to any asset disposition, the application of the Net Proceeds Amount (or a portion thereof) with respect to such asset disposition to the acquisition by the Company or any Subsidiary of fixed or capital assets of the Company or any Subsidiary to be used in the business of such Person.

“PTE” is defined in Section 6.2(a).

“Purchaser” or “Purchasers” means each of the purchasers that has executed and delivered this Agreement to the Company and such Purchaser’s successors and assigns (so long as any such assignment complies with Section 13.2), provided, however, that any Purchaser of a Note that ceases to be the registered holder or a beneficial owner (through a nominee) of such Note as the result of a transfer thereof pursuant to Section 13.2 shall cease to be included within the meaning of “Purchaser” of such Note for the purposes of this Agreement upon such transfer.

“Qualified Institutional Buyer” means any Person who is a “qualified institutional buyer” within the meaning of such term as set forth in Rule 144A(a)(1) under the Securities Act.

“QPAM Exemption” is defined in Section 6.2(d).

“Ratable Portion” for any Note shall mean an amount equal to the product of (a) the Net Proceeds Amount from a Transfer being applied to a Debt Prepayment Application pursuant to Section 10.2 multiplied by (b) a fraction, the numerator of which is the aggregate outstanding principal amount of such Note and the denominator of which is the aggregate outstanding principal amount of all Senior Debt of the Company (other than Senior Debt owing to any of its Subsidiaries or any Affiliate).

“Related Fund” means, with respect to any holder of any Note, any fund or entity that (i) invests in Securities or bank loans, and (ii) is advised or managed by such holder, the same investment advisor as such holder or by an affiliate of such holder or such investment advisor.

A-11

“Repurchase Liability” means the liability that the Company may incur to satisfy the (i) retirement benefit distribution requirements under the ESOP and section 409(h) of the Code and (ii) diversification requirements under the ESOP and section 401(a)(28)(B) of the Code.

“Required Holders” means at any time (i) prior to the Closing, the Purchasers and (ii) on or after the Closing, the holders of at least 51% in principal amount of the Notes (without regard to Series) at the time outstanding (exclusive of Notes then owned by the Company or any of its Affiliates).

“Responsible Officer” means any Senior Financial Officer and any other officer of the Company with responsibility for the administration of the relevant portion of this Agreement.

“SEC” means the Securities and Exchange Commission of the United States, or any successor thereto.

“Securities” or “Security” shall have the meaning specified in section 2(1) of the Securities Act.

“Securities Act” means the Securities Act of 1933, as amended from time to time, and the rules and regulations promulgated thereunder from time to time in effect.

“Senior Debt” shall mean any Debt of the Company other than Debt that is in any manner subordinated in right of payment or security in any respect to the Debt evidenced by the Notes.

“Senior Financial Officer” means the chief financial officer, principal accounting officer, treasurer or comptroller of the Company.

“Series” means any one of the Series of Notes issued hereunder.

“Series A Notes” is defined in Section 1.

“Series B Notes” is defined in Section 1.

“Series C Notes” is defined in Section 1.

“Series D Notes” is defined in Section 1.

“Source” is defined in Section 6.2.

“Subsidiary” means any Person (whether now existing or hereafter organized or acquired) of which the Company owns, directly or indirectly, more than 50% of the securities or other equity interests or which the Company otherwise controls. Unless the context otherwise clearly requires, any reference to a “Subsidiary” is a reference to a Subsidiary of the Company.

A-12

“Subsidiary Guarantor” means each Subsidiary that has executed and delivered a Subsidiary Guaranty.

“Subsidiary Guaranty” is defined in Section 9.7(a).

“Substitute Purchaser” is defined in Section 21.

“SVO” means the Securities Valuation Office of the NAIC or any successor to such Office.

“Transfer” means, with respect to any Person, any transaction (including by merger, consolidation or disposition of all or substantially all the assets of such Person) in which such Person sells, conveys, transfers or leases (as lessor) any of its property, including, without limitation, Subsidiary stock. “Transfer” shall also include the creation of minority interests in connection with any merger or consolidation involving a Subsidiary if the resulting entity is owned, directly or indirectly, by the Company in the proportion less than the proportion of ownership of such Subsidiary by the Company immediately preceding such merger or consolidation.

“USA PATRIOT Act” means United States Public Law 107-56, Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism (USA PATRIOT ACT) Act of 2001, as amended from time to time, and the rules and regulations promulgated thereunder from time to time in effect.

“U.S. Economic Sanctions” is defined in Section 5.16(a).

“Wholly-Owned Subsidiary” means, at any time, any Subsidiary all of the equity interests (except directors’ qualifying shares) and voting interests of which are owned by any one or more of the Company and the Company’s other Wholly-Owned Subsidiaries at such time.

A-13

(FORM OF SERIES A NOTE)

PARSONS CORPORATION

4.44% SENIOR NOTE, SERIES A, DUE JULY 15, 2021

FOR VALUE RECEIVED, the undersigned, PARSONS CORPORATION (herein called the “Company”), a corporation organized and existing under the laws of the State of Delaware, hereby promises to pay to [                    ], or registered assigns, the principal sum of [                                    ] DOLLARS (or so much thereof as shall not have been prepaid) on July 15, 2021 (the “Maturity Date”), with interest (computed on the basis of a 360-day year of twelve 30-day months) (a) on the unpaid balance hereof at the rate of 4.44% per annum from the date hereof, payable semiannually, on the 15th day of January and July in each year, commencing January 15, 2015, and on the Maturity Date, until the principal hereof shall have become due and payable, and (b) to the extent permitted by law, (x) on any overdue payment of interest and (y) during the continuance of an Event of Default, on such unpaid balance and on any overdue payment of any Make-Whole Amount, at a rate per annum from time to time equal to the greater of (i) 6.44% or (ii) 2% over the rate of interest publicly announced by JPMorgan Chase Bank, N .A. from time to time in New York, New York as its “base” or “prime” rate, payable semiannually as aforesaid (or, at the option of the registered holder hereof, on demand).

Payments of principal of, interest on and any Make-Whole Amount with respect to this Note are to be made in lawful money of the United States of America at JPMorgan Chase Bank, N.A. in New York, New York or at such other place as the Company shall have designated by written notice to the holder of this Note as provided in the Note Purchase Agreement referred to below.

This Note is one of a series of Senior Notes (herein called the “Notes”) issued pursuant to the Note Purchase Agreement, dated as of May 9, 2014 (as from time to time amended, the “Note Purchase Agreement”), between the Company and the respective Purchasers named therein and is entitled to the benefits thereof. Each holder of this Note will be deemed, by its acceptance hereof, to have (i) agreed to the confidentiality provisions set forth in Section 20 of the Note Purchase Agreement and (ii) made the representation set forth in Section 6.2 of the Note Purchase Agreement. Unless otherwise indicated, capitalized terms used in this Note shall have the respective meanings ascribed to such terms in the Note Purchase Agreement.

This Note is a registered Note and, as provided in the Note Purchase Agreement, upon surrender of this Note for registration of transfer accompanied by a written instrument of transfer duly executed, by the registered holder hereof or such holder’s attorney duly authorized in writing, a new Note for a like principal amount will be issued to, and registered in the name of, the transferee. Prior to due presentment for registration of transfer, the Company may treat the person in whose name this Note is registered as the owner hereof for the purpose of receiving payment and for all other purposes, and the Company will not be affected by any notice to the contrary.

SCHEDULE l(a)

(to Note Purchase Agreement)

This Note is subject to prepayment, in whole or from time to time in part, at the times and on the terms specified in the Note Purchase Agreement, but not otherwise.

If an Event of Default occurs and is continuing, the principal of this Note may be declared or otherwise become due and payable in the manner, at the price (including any applicable Make-Whole Amount) and with the effect provided in the Note Purchase Agreement.

This Note shall be construed and enforced in accordance with, and the rights of the Company and the holder of this Note shall be governed by, the law of the State of New York excluding choice-of-law principles of the law of such State that would permit the application of the laws of a jurisdiction other than such State.

1(a)-2

[FORM OF SERIES B NOTE]

PARSONS CORPORATION

4.98% SENIOR NOTE, SERIES B, DUE JULY 15, 2024

FOR VALUE RECEIVED, the undersigned, PARSONS CORPORATION (herein called the “Company”), a corporation organized and existing under the laws of the State of Delaware, hereby promises to pay to [                    ], or registered assigns, the principal sum of [                            ] DOLLARS (or so much thereof as shall not have been prepaid) on July 15, 2024 (the “Maturity Date”), with interest (computed on the basis of a 360-day year of twelve 30-day months) (a) on the unpaid balance hereof at the rate of 4.98% per annum from the date hereof, payable semiannually, on the 15th day of January and July in each year, commencing January 15, 2015, and on the Maturity Date, until the principal hereof shall have become due and payable, and (b) to the extent permitted by law, (x) on any overdue payment of interest and (y) during the continuance of an Event of Default, on such unpaid balance and on any overdue payment of any Make-Whole Amount, at a rate per annum from time to time equal to the greater of (i) 6.98% or (ii) 2% over the rate of interest publicly announced by JPMorgan Chase Bank, N.A. from time to time in New York, New York as its “base” or “prime” rate, payable semiannually as aforesaid (or, at the option of the registered holder hereof, on demand).

Payments of principal of, interest on and any Make-Whole Amount with respect to this Note are to be made in lawful money of the United States of America at JPMorgan Chase Bank, N.A. in New York, New York or at such other place as the Company shall have designated by written notice to the holder of this Note as provided in the Note Purchase Agreement referred to below.

This Note is one of a series of Senior Notes (herein called the “Notes”) issued pursuant to the Note Purchase Agreement, dated as of May 9, 2014 (as from time to time amended, the “Note Purchase Agreement”), between the Company and the respective Purchasers named therein and is entitled to the benefits thereof. Each holder of this Note will be deemed, by its acceptance hereof, to have (i) agreed to the confidentiality provisions set forth in Section 20 of the Note Purchase Agreement and (ii) made the representation set forth in Section 6.2 of the Note Purchase Agreement. Unless otherwise indicated, capitalized terms used in this Note shall have the respective meanings ascribed to such terms in the Note Purchase Agreement.

This Note is a registered Note and, as provided in the Note Purchase Agreement, upon surrender of this Note for registration of transfer accompanied by a written instrument of transfer duly executed, by the registered holder hereof or such holder’s attorney duly authorized in writing, a new Note for a like principal amount will be issued to, and registered in the name of, the transferee. Prior to due presentment for registration of transfer, the Company may treat the person in whose name this Note is registered as the owner hereof for the purpose of receiving payment and for all other purposes, and the Company will not be affected by any notice to the contrary.

SCHEDULE l(b)

(to Note Purchase Agreement)

This Note is subject to prepayment, in whole or from time to time in part, at the times and on the terms specified in the Note Purchase Agreement, but not otherwise.

If an Event of Default occurs and is continuing, the principal of this Note may be declared or otherwise become due and payable in the manner, at the price (including any applicable Make-Whole Amount) and with the effect provided in the Note Purchase Agreement.

This Note shall be construed and enforced in accordance with, and the rights of the Company and the holder of this Note shall be governed by, the law of the State of New York excluding choice-of-law principles of the law of such State that would permit the application of the laws of a jurisdiction other than such State.

1(b)-2

[FORM OF SERIES C NOTE]

PARSONS CORPORATION

5.13% SENIOR NOTE, SERIES C, DUE JULY 15, 2026

FOR VALUE RECEIVED, the undersigned, PARSONS CORPORATION (herein called the “Company”), a corporation organized and existing under the laws of the State of Delaware, hereby promises to pay to [                        ], or registered assigns, the principal sum of [                                             ] DOLLARS (or so much thereof as shall not have been prepaid) on July 15, 2026 (the “Maturity Date”), with interest (computed on the basis of a 360-day year of twelve 30-day months) (a) on the unpaid balance hereof at the rate of 5.13% per annum from the date hereof, payable semiannually, on the 15th day of January and July in each year, commencing January 15, 2015, and on the Maturity Date, until the principal hereof shall have become due and payable, and (b) to the extent permitted by law, (x) on any overdue payment of interest and (y) during the continuance of an Event of Default, on such unpaid balance and on any overdue payment of any Make-Whole Amount, at a rate per annum from time to time equal to the greater of (i) 7.13% or (ii) 2% over the rate of interest publicly announced by JPMorgan Chase Bank, N.A. from time to time in New York, New York as its “base” or “prime” rate, payable semiannually as aforesaid (or, at the option of the registered holder hereof, on demand).

Payments of principal of, interest on and any Make-Whole Amount with respect to this Note are to be made in lawful money of the United States of America at JPMorgan Chase Bank, N.A. in New York, New York or at such other place as the Company shall have designated by written notice to the holder of this Note as provided in the Note Purchase Agreement referred to below.

This Note is one of a series of Senior Notes (herein called the “Notes”) issued pursuant to the Note Purchase Agreement, dated as of May 9,2014 (as from time to time amended, the “Note Purchase Agreement”), between the Company and the respective Purchasers named therein and is entitled to the benefits thereof. Each holder of this Note will be deemed, by its acceptance hereof, to have (i) agreed to the confidentiality provisions set forth in Section 20 of the Note Purchase Agreement and (ii) made the representation set forth in Section 6.2 of the Note Purchase Agreement. Unless otherwise indicated, capitalized terms used in this Note shall have the respective meanings ascribed to such terms in the Note Purchase Agreement.

This Note is a registered Note and, as provided in the Note Purchase Agreement, upon surrender of this Note for registration of transfer accompanied by a written instrument of transfer duly executed, by the registered holder hereof or such holder’s attorney duly authorized in writing, a new Note for a like principal amount will be issued to, and registered in the name of, the transferee. Prior to due presentment for registration of transfer, the Company may treat the person in whose name this Note is registered as the owner hereof for the purpose of receiving payment and for all other purposes, and the Company will not be affected by any notice to the contrary.

SCHEDULE l(c)

(to Note Purchase Agreement)

This Note is subject to prepayment, in whole or from time to time in part, at the times and on the terms specified in the Note Purchase Agreement, but not otherwise.

If an Event of Default occurs and is continuing, the principal of this Note may be declared or otherwise become due and payable in the manner, at the price (including any applicable Make-Whole Amount) and with the effect provided in the Note Purchase Agreement.

This Note shall be construed and enforced in accordance with, and the rights of the Company and the holder of this Note shall be governed by, the law of the State of New York excluding choice-of-law principles of the law of such State that would permit the application of the laws of a jurisdiction other than such State.

1(c)-2

[FORM OF SERIES D NOTE]

PARSONS CORPORATION

5.38% SENIOR NOTE, SERIES D, DUE JULY 16, 2029

FOR VALUE RECEIVED, the undersigned, PARSONS CORPORATION (herein called the “Company”), a corporation organized and existing under the laws of the State of Delaware, hereby promises to pay to [___________], or registered assigns, the principal sum of [_____________________] DOLLARS (or so much thereof as shall not have been prepaid) on July 16, 2029 (the “Maturity Date”), with interest (computed on the basis of a 360-day year of twelve 30-day months) (a) on the unpaid balance hereof at the rate of 5.38% per annum from the date hereof, payable semiannually, on the 15th day of January and July in each year, commencing January 15, 2015, and on the Maturity Date, until the principal hereof shall have become due and payable, and (b) to the extent permitted by law, (x) on any overdue payment of interest and (y) during the continuance of an Event of Default, on such unpaid balance and on any overdue payment of any Make-Whole Amount, at a rate per annum from time to time equal to the greater of (i) 7.38% or (ii) 2% over the rate of interest publicly announced by JPMorgan Chase Bank, N A. from time to time in New York, New York as its “base” or “prime” rate, payable semiannually as aforesaid (or, at the option of the registered holder hereof, on demand).

Payments of principal of, interest on and any Make-Whole Amount with respect to this Note are to be made in lawful money of the United States of America at JPMorgan Chase Bank, N.A. in New York, New York or at such other place as the Company shall have designated by written notice to the holder of this Note as provided in the Note Purchase Agreement referred to below.

This Note is one of a series of Senior Notes (herein called the “Notes”) issued pursuant to the Note Purchase Agreement, dated as of May 9, 2014 (as from time to time amended, the “Note Purchase Agreement”), between the Company and the respective Purchasers named therein and is entitled to the benefits thereof. Each holder of this Note will be deemed, by its acceptance hereof, to have (i) agreed to the confidentiality provisions set forth in Section 20 of the Note Purchase Agreement and (ii) made the representation set forth in Section 6.2 of the Note Purchase Agreement. Unless otherwise indicated, capitalized terms used in this Note shall have the respective meanings ascribed to such terms in the Note Purchase Agreement.

This Note is a registered Note and, as provided in the Note Purchase Agreement, upon surrender of this Note for registration of transfer accompanied by a written instrument of transfer duly executed, by the registered holder hereof or such holder’s attorney duly authorized in writing, a new Note for a like principal amount will be issued to, and registered in the name of, the transferee. Prior to due presentment for registration of transfer, the Company may treat the person in whose name this Note is registered as the owner hereof for the purpose of receiving payment and for all other purposes, and the Company will not be affected by any notice to the contrary.

SCHEDULE 1(d)

(to Note Purchase Agreement)

This Note is subject to prepayment, in whole or from time to time in part, at the times and on the terms specified in the Note Purchase Agreement, but not otherwise.

If an Event of Default occurs and is continuing, the principal of this Note may be declared or otherwise become due and payable in the manner, at the price (including any applicable Make-Whole Amount) and with the effect provided in the Note Purchase Agreement.

This Note shall be construed and enforced in accordance with, and the rights of the Company and the holder of this Note shall be governed by, the law of the State of New York excluding choice-of-law principles of the law of such State that would permit the application of the laws of a jurisdiction other than such State.

1(d)-2