act Apr. 26, 1937, ch. 12750 Stat. 75–91Sections, , §§ 1–22, , related to the regulation of interstate commerce of bituminous coal.
Section 849 of this titleApr. 11, 1941, ch. 64, § 1(a)55 Stat. 134Apr. 24, 1943, ch. 6857 Stat. 68May 21, 1943, ch. 9757 Stat. 82 was amended by acts , ; , ; , .
Section 852 of this titleact Apr. 11, 1941, ch. 64, § 255 Stat. 134 was added by , .