§ 173. Omitted
Section, act May 27, 1921, ch. 14, § 407, 42 Stat. 18, which directed the Secretary to make rules and regulations necessary for the enforcement of sections
160 to
171 of this title was omitted in view of the repeal of sections
160 to
171 of this title by Pub. L. 96–39, title I, § 106(a), July 26, 1979, 93 Stat. 193.