96 STAT. 688
PUBLIC LAW 97-248—SEPT. 3, 1982
(13) the airport operator or owner who receives a grant for the purchase of land for noise compatibility purposes which is conditioned on the disposal of the acquired land at the earliest practicable time will, subject to the retention or reservation of any interest or right therein necessary to insure that such land is used only for purposes which are compatible with the noise levels of the operation of the airport, use its best efforts to so dispose of such land. The proceeds of such dispositions shall be (A) refunded to the United States for the Trust Fund on a basis proportionate to the United States share of the cost of acquisition of such land, or (B) reinvested in an approved project, pursuant to such regulations as the Secretary shall prescribe. (b) COMPLIANCE.—To insure compliance with this section, the Secretary shall prescribe such project sponsorship requirements, consistent with the terms of this title, as the Secretary considers necessary. Among other steps to insure such compliance, the Secretary is authorized to enter into contracts with public agencies on behalf of the United States. Whenever the Secretary obtains from a sponsor any area of land or water, or estate therein, or rights in buildings of the sponsor and constructs space or facilities thereon at Federal expense, the Secretary is authorized to relieve the sponsor from any contractual obligation entered into under this title, the 49 USC 1101 Airport and Airway Development Act of 1970, or the Federal Airnote, posf, p. 695. port Act to provide free space in airport buildings to the Federal Government to the extent the Secretary finds that space no longer required for the purposes set forth in paragraph (7) of subsection (a) of this section. (c) CONSULTATION.—In making a decision to undertake any airport development project under this title, each sponsor of an airport shall undertake reasonable consultations with affected parties using the airport at which such project is proposed. 49 USC 2211.
SEC. 512. GRANT AGREEMENTS. (a) OFFER AND ACCEPTANCE.—Upon approving a project grant
application, the Secretary, on behalf of the United States, shall transmit to the sponsor or sponsors of the application an offer to make a grant for the United States share of allowable project costs. An offer shall be made upon such terms and conditions as the Secretary considers necessary to meet the requirements of this title and any regulations prescribed thereunder. Each offer shall state a definite amount as the maximum obligation of the United States payable from funds authorized by this title, and shall stipulate the obligations to be assumed by the sponsor or sponsors. In any case where the Secretary approves a project grant application for a project which will not be completed in one fiscal year, the offer shall, upon request of the sponsor, provide for the obligation of funds apportioned or to be apportioned to the sponsor pursuant to section 507(3)(1) of this title for such fiscal years (including future fiscal years) as may be necessary to pay the United States share of the cost of such project. If and when an offer is accepted in writing by the sponsor, the offer and acceptance shall comprise an agreement constituting an obligation of the United States and of the sponsor. Unless and until an agreement has been executed, the United States may not pay, nor be obligated to pay, any portion of the costs which have been or may be incurred. (b) MAXIMUM OBLIGATION OF THE UNITED STATES.—When an offer is accepted in writing by a sponsor, the amount stated in the offer as
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