Certain direct costs and joint air navigation services

§ 48104. Certain direct costs and joint air navigation services (a) Authorization of Appropriations—Except as provided in this section, the balance of the money available in the Airport and Airway Trust Fund established under section 9502 of the Internal Revenue Code of 1986 (26 U.S.C. 9502) may be appropriated to the Secretary of Transportation out of the Fund for— (1) direct costs the Secretary incurs to flight check, operate, and maintain air navigation facilities referred to in section 44502(a)(1)(A) of this title safely and efficiently; and (2) the costs of services provided under international agreements related to the joint financing of air navigation services assessed against the United States Government. (b) Limitation.—The amount that may be appropriated out of the Fund for each of the fiscal years ending September 30, 1993–1995, may not be more than an amount equal to— (1) 75 percent of the amount made available under sections 106(k) and 48101–48103 of this title for that fiscal year; less (2) the amount made available under sections 48101–48103 of this title for that fiscal year.