A prior section 9912, Pub. L. 97–35, title VI, § 684, formerly § 683, Aug. 13, 1981, 95 Stat. 519; Pub. L. 98–288, § 31(b), May 21, 1984, 98 Stat. 198; renumbered § 684, Pub. L. 103–252, title II, § 205(1), May 18, 1994, 108 Stat. 655, contained provisions repealing certain other statutory provisions, reauthorizing appropriations, and conforming references, prior to general amendment of this chapter by Pub. L. 105–285.

A prior section 678 of Pub. L. 97–35 was classified to section 9907 of this title, prior to the general amendment of this chapter by Pub. L. 105–285.