46 C.F.R. § 105.35-10 Fire main system.
Title 46 - Shipping
(a) All vessels required to be provided with a power-driven fire pump shall also be provided with a fire main system including fire main, hydrants, hose, and nozzles. (b) Fire hydrants, when required, shall be of sufficient number and so located that any part of the vessel may be reached with an effective stream of water from a single length of hose. (c) All piping, valves, and fittings shall be in accordance with good marine practice and suitable for the purpose intended.
Title 46: Shipping
PART 105—COMMERCIAL FISHING VESSELS DISPENSING PETROLEUM PRODUCTS
Subpart 105.35—Fire Extinguishing Equipment
§ 105.35-10 Fire main system.