§ 610.
([May 12, 1933, ch. 25], title I, § 10, [48 Stat. 37]; [June 16, 1933, ch. 98], title VIII, § 86, [48 Stat. 273]; [May 9, 1934, ch. 263, § 7], [48 Stat. 675]; [Aug. 24, 1935, ch. 641], §§ 16–18, [49 Stat. 767]; [Aug. 26, 1935, ch. 685], [49 Stat. 801]; [June 22, 1936, ch. 690, § 601(a)], [49 Stat. 1739]; [June 3, 1937, ch. 296], §§ 1, 2(g)–(i), [50 Stat. 246], 248; Proc. No. 2695, eff. July 4, 1946, 11 F.R. 7817, [60 Stat. 1352]; [Aug. 1, 1947, ch. 425, § 3], [61 Stat. 709]; [Oct. 28, 1949, ch. 782], title XI, § 1106(a), [63 Stat. 972].)