United States Code Title 16 — Conservation § 568b. Repealed. Aug. 25, 1950, ch. 781, § 3, 64 Stat. 473, eff. June 30, 1951 § 568b. Repealed. Aug. 25, 1950, ch. 781, § 3, 64 Stat. 473, eff. June 30, 1951