No payments shall be made or contracts shall be entered into pursuant to the provisions of this chapter (other than sections 3710a, 3710b, and 3710c of this title) except to such extent or in such amounts as are provided in advance in appropriation Acts.
(Pub. L. 96–480, § 22, formerly § 15, Oct. 21, 1980, 94 Stat. 2320; renumbered § 19, Pub. L. 99–502, § 2, Oct. 20, 1986, 100 Stat. 1785; renumbered § 18, and amended Pub. L. 99–502, § 9(b)(13), (e)(1), (4), Oct. 20, 1986, 100 Stat. 1796, 1797; renumbered § 19, Pub. L. 100–107, § 3(a), Aug. 20, 1987, 101 Stat. 725; renumbered § 20, Pub. L. 100–418, title V, § 5122(a)(1), Aug. 23, 1988, 102 Stat. 1438; renumbered § 22, Pub. L. 102–240, title VI, § 6019, Dec. 18, 1991, 105 Stat. 2183; Pub. L. 106–404, § 7(8), Nov. 1, 2000, 114 Stat. 1746.)