33 CFR 83.05 : Navigation And Navigable Waters (§ 1.01-1 To Parts 404-499) — (§ 1.01-1 To Parts 121-124) — Coast Guard, Department Of Homeland Security (§ 1.01-1 To Parts 121-124) — Inland Navigation Rules (§ 83.01 To § 90.7) — Rules (§ 83.01 To § 83.38) — Steering And Sailing Rules (§ 83.04 To § 83.19) — Conduct Of Vessels In Any Condition Of Visibility (§ 83.04 To § 83.10) — Look-out (Rule 5).

4 Aug 2016

Every vessel shall at all times maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.

33 CFR 83.05