46 CFR § 167.20-17
Bilge pumps, bilge piping and sounding arrangements
April 15, 2021
The number, capacity, and arrangement of bilge pumps and bilge piping shall be in accordance with the requirements for cargo vessels contained in parts 50 to 61 of Subchapter F (Marine Engineering) of this chapter. Sounding pipes shall be fitted in each compartment, except those accessible at all times. The main and secondary drain systems installed in accordance with U.S. Navy or U.S. Coast Guard Construction Specifications shall be accepted as meeting the intent of this section.
[CGFR 52-43, 17 FR 9542, Oct. 18, 1952]