46 CFR 105.35-5 - Fire pumps.
(a) All vessels shall be provided with a hand operated portable fire pump having a capacity of at least 5 gallons per minute. This fire pump shall be equipped with suction and discharge hose suitable for use in firefighting. This pump may also serve as a bilge pump.
(b) A power-driven fire pump shall be installed on each vessel of more than 65 feet in length overall.
(1) The power fire pump shall be self-priming and of such size as to discharge an effective stream from a hose connected to the highest outlet.
(2) The minimum capacity of the power fire pump shall be 50 gallons per minute at a pressure of not less than 60 pounds per square inch at the pump outlet. The pump outlet shall be fitted with a pressure gage.
(3) The power fire pump may be driven off a propulsion engine or other source of power and shall be connected to the fire main. This pump may also be connected to the bilge system so that it can serve as either a fire pump or a bilge pump.