§ 1521.
([Pub. L. 85–857], Sept. 2, 1958, [72 Stat. 1136], § 521; [Pub. L. 86–211, § 3(a)], Aug. 29, 1959, [73 Stat. 433]; [Pub. L. 87–101, § 1], July 21, 1961, [75 Stat. 218]; [Pub. L. 88–664], §§ 3(a), (b), 5, 6(a), 7, Oct. 13, 1964, [78 Stat. 1094], 1095; [Pub. L. 90–77, title I, § 104], title II, § 202(a)–(c), Aug. 31, 1967, [81 Stat. 179], 182; [Pub. L. 90–275, § 1(a)], (b), Mar. 28, 1968, [82 Stat. 64], 65; [Pub. L. 91–588], §§ 1(a), (b), 3(b), 9(c), Dec. 24, 1970, [84 Stat. 1580], 1583, 1584; [Pub. L. 92–198], §§ 1(a), (b), 5(b), Dec. 15, 1971, [85 Stat. 663], 664; [Pub. L. 93–177, § 1(a)], (b), Dec. 6, 1973, [87 Stat. 694]; [Pub. L. 93–527, § 2], Dec. 21, 1974, [88 Stat. 1702]; [Pub. L. 94–169, title I], §§ 102, 106(18), Dec. 23, 1975, [89 Stat. 1014], 1018; [Pub. L. 94–432, title II, § 202], Sept. 30, 1976, [90 Stat. 1369]; [Pub. L. 95–204, title I, § 101], Dec. 2, 1977, [91 Stat. 1455]; [Pub. L. 95–588, title I, § 106(a)], Nov. 4, 1978, [92 Stat. 2500]; [Pub. L. 102–40, title IV, § 402(d)(1)], May 7, 1991, [105 Stat. 239]; renumbered § 1521 and amended [Pub. L. 102–83], §§ 4(b)(1), (2)(E), 5(a), Aug. 6, 1991, [105 Stat. 404–406]; [Pub. L. 107–103, title II, § 207(b)(1)], Dec. 27, 2001, [115 Stat. 991]; [Pub. L. 111–275, title VI, § 608(a)], Oct. 13, 2010, [124 Stat. 2886]; [Pub. L. 112–154, title V, § 508(a)], Aug. 6, 2012, [126 Stat. 1194]; [Pub. L. 116–283, div. A, title IX, § 926(a)(19)], Jan. 1, 2021, [134 Stat. 3830].)