Guides

Each guide answers one question mariners actually ask, then points at the regulation sections behind it. The section pages, with the regulation text beside the explanation, are in Regulations.

Subchapter M

Subchapter M: TSMS option vs. Coast Guard optionHow a towing vessel documents compliance for its Certificate of Inspection: the Coast Guard option and the Towing Safety Management System (TSMS) option under 46 CFR 136.130.Last reviewed: October 23, 2026

Firefighting equipment

Fire extinguisher requirements for uninspected commercial vessels (46 CFR 25.30)Which portable fire extinguishers 46 CFR 25.30 requires on uninspected commercial vessels, by length or tonnage, and which older vessels follow 46 CFR 25.30-80 or 25.30-90.Last reviewed: October 23, 2026