The Secretary of the Army is authorized to make such rules and regulations for the navigation of Ambrose Channel as he may deem necessary or expedient to insure its safe use in all kinds of weather, night and day, for all vessels under control and running under their own power, and to this end he may, in his discretion, forbid its use to tows of every description and to sailing vessels.
(Mar. 4, 1913, ch. 144, § 1, 37 Stat. 803; July 26, 1947, ch. 343, title II, § 205(a), 61 Stat. 501.)