§ 51.
(Added [Pub. L. 95–30, title II, § 202(b)], May 23, 1977, [91 Stat. 141]; amended [Pub. L. 95–600, title III, § 321(a)], Nov. 6, 1978, [92 Stat. 2830]; [Pub. L. 96–222, title I, § 103(a)(6)(A)], (E), (F), (G)(iii)–(ix), Apr. 1, 1980, [94 Stat. 209], 210; [Pub. L. 97–34, title II, § 261(a)]–(b)(2)(A), (B)(ii)–(f)(1), Aug. 13, 1981, [95 Stat. 260–262]; [Pub. L. 97–248, title II, § 233(a)]–(d), (f), Sept. 3, 1982, [96 Stat. 501], 502; [Pub. L. 97–448, title I, § 102](l)(1), (3), (4), Jan. 12, 1983, [96 Stat. 2374]; [Pub. L. 98–369, div. A, title IV, § 474(p)(1)]–(3), title VII, § 712(n), title X, § 1041(a), (c)(1)–(4), div. B, title VI, §§ 2638(b), 2663(j)(5)(A), July 18, 1984, [98 Stat. 837], 955, 1042, 1043, 1144, 1171; [Pub. L. 99–514, title XVII, § 1701(a)]–(c), title XVIII, § 1878(f)(1), Oct. 22, 1986, [100 Stat. 2772], 2904; [Pub. L. 100–203, title X, § 10601(a)], Dec. 22, 1987, [101 Stat. 1330–451]; [Pub. L. 100–485, title II, § 202(c)(6)], Oct. 13, 1988, [102 Stat. 2378]; [Pub. L. 100–647, title I, § 1017(a)], title IV, § 4010(a), (c)(1), (d)(1), Nov. 10, 1988, [102 Stat. 3575], 3655; [Pub. L. 101–239, title VII, § 7103(a)], (c)(1), Dec. 19, 1989, [103 Stat. 2305]; [Pub. L. 101–508, title XI, § 11405(a)], Nov. 5, 1990, [104 Stat. 1388–473]; [Pub. L. 102–227, title I, § 105(a)], Dec. 11, 1991, [105 Stat. 1687]; [Pub. L. 103–66, title XIII], §§ 13102(a), 13302(d), Aug. 10, 1993, [107 Stat. 420], 556; [Pub. L. 104–188, title I, § 1201(a)]–(e)(1), (5), (f), Aug. 20, 1996, [110 Stat. 1768–1772]; [Pub. L. 104–193, title I, § 110](l)(1), Aug. 22, 1996, [110 Stat. 2173]; [Pub. L. 105–33, title V, § 5514(a)(1)], Aug. 5, 1997, [111 Stat. 620]; [Pub. L. 105–34, title VI, § 603(a)]–(d), Aug. 5, 1997, [111 Stat. 862]; [Pub. L. 105–277, div. J, title I, § 1002(a)], title IV, § 4006(c)(1), Oct. 21, 1998, [112 Stat. 2681–888], 2681–912; [Pub. L. 106–170, title V, § 505(a)], (b), Dec. 17, 1999, [113 Stat. 1921]; [Pub. L. 106–554, § 1(a)(7) [title I, § 102(a)–(c), title III, § 316(a)]], Dec. 21, 2000, [114 Stat. 2763], 2763A–600, 2763A–644; [Pub. L. 107–147, title VI, § 604(a)], Mar. 9, 2002, [116 Stat. 59]; [Pub. L. 108–311, title II, § 207(5)], title III, § 303(a)(1), Oct. 4, 2004, [118 Stat. 1177], 1179; [Pub. L. 109–432, div. A, title I, § 105(a)]–(e)(3), Dec. 20, 2006, [120 Stat. 2936], 2937; [Pub. L. 110–28, title VIII, § 8211(a)]–(d), May 25, 2007, [121 Stat. 191]; [Pub. L. 110–234, title IV, § 4002(b)(1)(A)], (B), (D), (2)(O), May 22, 2008, [122 Stat. 1095–1097]; [Pub. L. 110–246, § 4(a)], title IV, § 4002(b)(1)(A), (B), (D), (2)(O), June 18, 2008, [122 Stat. 1664], 1857, 1858; [Pub. L. 111–5, div. B, title I, § 1221(a)], Feb. 17, 2009, [123 Stat. 337]; [Pub. L. 111–147, title I, § 101(b)], Mar. 18, 2010, [124 Stat. 74]; [Pub. L. 111–312, title VII, § 757(a)], Dec. 17, 2010, [124 Stat. 3322]; [Pub. L. 112–56, title II, § 261(a)]–(d), Nov. 21, 2011, [125 Stat. 729], 730; [Pub. L. 112–240, title III, § 309(a)], Jan. 2, 2013, [126 Stat. 2329]; [Pub. L. 113–295, div. A, title I, § 119(a)], Dec. 19, 2014, [128 Stat. 4015]; [Pub. L. 114–113, div. Q, title I, § 142(a)], (b), Dec. 18, 2015, [129 Stat. 3056]; [Pub. L. 115–141, div. U, title IV, § 401(a)(26)]–(29), Mar. 23, 2018, [132 Stat. 1185]; [Pub. L. 116–94, div. Q, title I, § 143(a)], Dec. 20, 2019, [133 Stat. 3234]; [Pub. L. 116–260, div. EE, title I, § 113(a)], Dec. 27, 2020, [134 Stat. 3050].)