(Pub. L. 91–513, title II, § 418, formerly § 405, Oct. 27, 1970, 84 Stat. 1265; Pub. L. 98–473, title II, §§ 224(b), 503(b)(3), Oct. 12, 1984, 98 Stat. 2030, 2070; Pub. L. 99–570, title I, §§ 1004(a), 1005(b)(1), 1105(a), (b), Oct. 27, 1986, 100 Stat. 3207–6, 3207–11; Pub. L. 100–690, title VI, §§ 6452(b), 6455, 6456, Nov. 18, 1988, 102 Stat. 4371, 4372; renumbered § 418 and amended Pub. L. 101–647, title X, §§ 1002(a), 1003(a), title XXXV, § 3599L, Nov. 29, 1990, 104 Stat. 4827, 4828, 4932.)