Section 147, act Oct. 11, 1951, ch. 495, § 6, Pt. D, 65 Stat. 419, related to sound signals of vessels indicating course.

Section 147a, act Oct. 11, 1951, ch. 495, § 6, Pt. D, 65 Stat. 419, related to additional precautions.

Section 147b, act Oct. 11, 1951, ch. 495, § 6, Pt. D, 65 Stat. 420, related to local rules for harbors and inland waters.

Section 147c, act Oct. 11, 1951, ch. 495, § 6, Pt. D, 65 Stat. 420, related to distress signals.

Section 147d, act Oct. 11, 1951, ch. 495, § 6, Pt. D, 65 Stat. 420, related to orders to helmsmen, and has been omitted.