§ 156.
The Board shall have authority from time to time to make, amend, and rescind, in the manner prescribed by subchapter II of chapter 5 of title 5, such rules and regulations as may be necessary to carry out the provisions of this subchapter.
([July 5, 1935, ch. 372, § 6], [49 Stat. 452]; [June 23, 1947, ch. 120], title I, § 101, [61 Stat. 140].)