114 STAT. 72 PUBLIC LAW 106-181—APR. 5, 2000 that would be apportioned under this section after appHcation of paragraph (1) in a fiscal year to such sponsor and the projected revenues to be derived from the fee in such fiscal year shall not be less than the sum of the apportionment to such airport for the preceding fiscal year and the revenues derived from such fee in the preceding fiscal year. "(B) EFFECTIVE PERIOD. —Subparagraph (A) shall be in effect for fiscal years 2000 through 2003."; and (4) by aligning paragraph (1) of such section (as designated by paragraph (1) of this section) with paragraph (2) of such section (as added by paragraph (3) of this section). 49 USC 48101 SEC. 106. FUNDING FOR AVIATION PROGRAMS. "° ^' (a) AUTHORIZATION OF APPROPRIATIONS.— (1) AIRPORT AND AIRWAY TRUST FUND GUARANTEE.— (A) IN GENERAL.— The total budget resources made available from the Airport and Airway Trust Fund each fiscal year through fiscal year 2003 pursuant to sections 48101, 48102, 48103, and 106(k) of title 49, United States Code, shall be equal to the level of receipts plus interest credited to the Airport and Airway Trust Fund for that fiscal year. Such amounts may be used only for aviation investment programs listed in subsection (b). (B) GUARANTEE.—No funds may be appropriated or limited for aviation investment programs listed in subsection (b) unless the amount described in subparagraph (A) has been provided. (2) ADDITIONAL AUTHORIZATIONS OF APPROPRIATIONS FROM THE GENERAL FUND.— In any fiscal year through fiscal year 2003, if the amount described in paragraph (1) is appropriated, there is further authorized to be appropriated from the general fund of the Treasury such sums as may be necessary for the Federal Aviation Administration Operations account. (b) DEFINITIONS.— In this section, the following definitions apply: (1) TOTAL BUDGET RESOURCES. —The term "total budget resources" means the total amount made available from the Airport and Airway Trust Fund for the sum of obligation limitations and budget authority made available for a fiscal year for the following budget accounts that are subject to the obligation limitation on contract authority provided in this Act and for which appropriations are provided pursuant to authorizations contained in this Act: (A) 69-8106-0-7 -402 (Grants in Aid for Airports). (B) 69-8107-0-7-402 (Facilities and Equipment). (C) 69-8108-0-7-402 (Research and Development). (D) 69-8104-0 -7 -402 (Trust Fund Share of Operations). (2) LEVEL OF RECEIPTS PLUS INTEREST. —The term "level of receipts plus interest" means the level of excise taxes and interest credited to the Airport and Airway Trust Fund under section 9502 of the Internal Revenue Code of 1986 for a fiscal year as set forth in the President's budget baseline projection as defined in section 257 of the Balanced Budget and Emergency Deficit Control Act of 1985 (Public Law 99-177) (Treasury
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