§ 2501.
([Aug. 16, 1954, ch. 736], [68A Stat. 403]; [Pub. L. 85–866, title I], §§ 43(b), 102(b), Sept. 2, 1958, [72 Stat. 1641], 1674; [Pub. L. 86–779, § 4(d)], Sept. 14, 1960, [74 Stat. 1000]; [Pub. L. 89–809, title I, § 109(a)], Nov. 13, 1966, [80 Stat. 1574]; [Pub. L. 91–614, title I, § 102(a)(1)], Dec. 31, 1970, [84 Stat. 1838]; [Pub. L. 93–625, § 14(a)], Jan. 3, 1975, [88 Stat. 2121]; [Pub. L. 94–455, title XIX], §§ 1902(a)(10), 1906(b)(13)(A), Oct. 4, 1976, [90 Stat. 1805], 1834; [Pub. L. 97–34, title IV, § 442(a)(1)], Aug. 13, 1981, [95 Stat. 320]; [Pub. L. 100–647, title III, § 3031(a)(2)], Nov. 10, 1988, [102 Stat. 3635]; [Pub. L. 101–508, title XI, § 11601(b)(2)], Nov. 5, 1990, [104 Stat. 1388–490]; [Pub. L. 104–191, title V, § 511(e)(2)], (f)(2)(B), Aug. 21, 1996, [110 Stat. 2098], 2100; [Pub. L. 105–34, title XVI, § 1602(g)(5)], Aug. 5, 1997, [111 Stat. 1095]; [Pub. L. 108–357, title VIII, § 804(d)], Oct. 22, 2004, [118 Stat. 1571]; [Pub. L. 114–113, div. Q, title IV, § 408(a)], Dec. 18, 2015, [129 Stat. 3120].)