Section 143, act Oct. 11, 1951, ch. 495, § 1, 65 Stat. 406, related to adoption of rules for prevention of collisions on the high seas, and to their geographical applicability.

Section 143a, act Oct. 11, 1951, ch. 495, § 2, 65 Stat. 407, provided that Navy and Coast Guard be exempt from the requirements of the rules.

Section 143b, act Oct. 11, 1951, ch. 495, § 6, 65 Stat. 408, related to identity of regulations authorized to be proclaimed.