§ 831.
([Aug. 16, 1954, ch. 736], [68A Stat. 264]; [Pub. L. 87–834, § 8(e)(1)], (f), (g)(4)(B), Oct. 16, 1962, [76 Stat. 997–999]; [Pub. L. 89–809, title I, § 104(i)(6)], Nov. 13, 1966, [80 Stat. 1562]; [Pub. L. 94–455, title XIX], §§ 1901(a)(107), 1906(b)(13)(A), Oct. 4, 1976, [90 Stat. 1782], 1834; [Pub. L. 99–514, title X, § 1024(a)(4)], Oct. 22, 1986, [100 Stat. 2405]; [Pub. L. 100–647, title I, § 1010(f)(1)], (9), Nov. 10, 1988, [102 Stat. 3454], 3455; [Pub. L. 108–218, title II, § 206(c)], (d), Apr. 10, 2004, [118 Stat. 611]; [Pub. L. 114–113, div. Q, title III, § 333(a)], (b), Dec. 18, 2015, [129 Stat. 3106], 3108; [Pub. L. 115–97, title I], §§ 11002(d)(1)(AA), 13001(b)(2)(H), 13511(b)(2)(B), Dec. 22, 2017, [131 Stat. 2060], 2096, 2142; [Pub. L. 115–141, div. U, title I, § 101(r)], title IV, § 401(a)(142), Mar. 23, 2018, [132 Stat. 1168], 1191.)