§ 643.
([Aug. 16, 1954, ch. 736], [68A Stat. 217]; [Pub. L. 87–834, § 7(a)], Oct. 16, 1962, [76 Stat. 985]; [Pub. L. 94–455, title X, § 1013(c)], (e)(2), Oct. 4, 1976, [90 Stat. 1615], 1616; [Pub. L. 96–223, title IV, § 404(b)(4)], Apr. 2, 1980, [94 Stat. 306]; [Pub. L. 97–34, title III, § 301(b)(4)], (6)(B), Aug. 13, 1981, [95 Stat. 270]; [Pub. L. 97–248, title III], §§ 302(b)(1), 308(a), Sept. 3, 1982, [96 Stat. 586], 591; [Pub. L. 97–448, title I, § 103(a)(3)], Jan. 12, 1983, [96 Stat. 2375]; [Pub. L. 98–67, title I, § 102(a)], Aug. 5, 1983, [97 Stat. 369]; [Pub. L. 98–369, div. A, title I], §§ 81(a), 82(a), title VII, § 722(h)(3), July 18, 1984, [98 Stat. 597], 598, 975; [Pub. L. 99–514, title III, § 301(b)(7)], title VI, § 612(b)(4), title XIV, § 1404(b), title XVIII, § 1806(a), (c), Oct. 22, 1986, [100 Stat. 2217], 2250, 2713, 2810, 2811; [Pub. L. 100–647, title I, § 1014(d)(3)], (4), Nov. 10, 1988, [102 Stat. 3561]; [Pub. L. 101–239, title VII, § 7811(b)], (f)(1), Dec. 19, 1989, [103 Stat. 2406], 2409; [Pub. L. 103–66, title XIII, § 13113(d)(3)], Aug. 10, 1993, [107 Stat. 430]; [Pub. L. 104–188, title I], §§ 1904(c)(1), 1906(b), (c)(1), Aug. 20, 1996, [110 Stat. 1912], 1915; [Pub. L. 111–147, title V, § 533(a)], (b), (d), Mar. 18, 2010, [124 Stat. 114].)