D.C. Code § 1-1214
3/3/1901, 31 Stat. 1280, ch. 854, § 572; 6/25/1936, 49 Stat. 1921, ch. 804; 6/25/1948, 62 Stat. 991, ch. 646, § 32(b); 5/24/1949, 63 Stat. 107, ch. 139, § 127; 7/5/1966, 80 Stat. 263, Pub. L. 89-493, § 3; 7/29/1970, 84 Stat. 570, Pub. L. 91-358, § 155 (a).
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