U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 46Chapter IPart 143Subpart B - Subpart B—Requirements for All Towing Vessels
§ 143.200 - Applicability.
§ 143.205 - General.
§ 143.210 - Alternate design or operational considerations.
§ 143.215 - Existing vessels built to class.
§ 143.220 - Machinery space fire prevention.
§ 143.225 - Control and monitoring requirements.
§ 143.230 - Alarms and monitoring.
§ 143.235 - General alarms.
§ 143.240 - Communication requirements.
§ 143.245 - Readiness and testing.
§ 143.250 - System isolation and markings.
§ 143.255 - Fuel system requirements.
§ 143.260 - Fuel shutoff requirements.
§ 143.265 - Additional fuel system requirements for towing vessels built after January 18, 2000.
§ 143.270 - Piping systems and tanks.
§ 143.275 - Bilge pumps or other dewatering capability.
§ 143.300 - Pressure vessels.
§ 143.400 - Electrical systems, general.
§ 143.410 - Shipboard lighting.
§ 143.415 - Navigation lights.
§ 143.450 - Pilothouse alerter system.
§ 143.460 - Towing machinery.
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