Navigation safety equipment requirements are based primarily on vessel length (under 39.4 feet or 39.4 feet and more in length). Regardless of the prescribed carriage requirement, all navigational safety equipment shall be properly maintained and fully functional aboard each towing vessel. Any navigational safety equipment that fails during a voyage must be repaired at the earliest practical time. When determining the repair of failed equipment and deciding whether it is safe for the vessel to proceed, prudent seamanship factors such as the condition of equipment, weather conditions, visibility and traffic shall be considered. Failures of navigation safety equipment and subsequent repairs need to be recorded in the official log, Towing Vessel Record, or in accordance with the towing vessel’s TSMS if applicable.
33 CFR 164.01(b) Applicability
33 CFR 164.72 Navigational Safety Equipment Required on Towing Vessels
33 CFR 164.82 Maintenance, Failure, and Reporting (towing vessels 39.4 feet or more)
46 CFR 140.620 Navigational Safety Equipment (towing vessels under 39.4 feet)