46 C.F.R. § 28.325 Fire detection systems.
Title 46 - Shipping
(a) Each accommodation space must be equipped with an independent modular smoke detector or a smoke actuated fire detecting unit installed in accordance with 46 CFR part 76, subpart 76.33. (b) An independent modular smoke detector must meet UL 217 and be listed as a “Single Station Smoke Detector—Also suitable for use in Recreational Vehicles.”
Title 46: Shipping
PART 28—REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS
Subpart D—Requirements for Vessels Which Have Their Keel Laid or Are at a Similar Stage of Construction on or After or Which Undergo a Major Conversion Completed on or After September 15, 1991, and That Operate With More Than 16 Individuals on Board
§ 28.325 Fire detection systems.

