46 CFR § 153.334
Bilge pumping systems
April 15, 2021
(a) A cargo pumproom must have a bilge pumping system.
(b) The bilge pumping system must have:
(1) Complete remote operating controls outside the cargo pumproom; and
(2) An alarm that operates when the depth of liquid in the bilges exceeds 50 cm (approx. 19.7 in.).