46 C.F.R. § 153.235 Exceptions to cargo piping location restrictions.
Title 46 - Shipping
Cargo piping must not be located in those areas from which a containment system is excluded by §§153.230(b), 153.231(b), and 153.234(b) unless the cargo piping: (a) Drains back to the cargo tank under any heel or trim resulting from the damage specified in §172.135 of this chapter; and (b) Enters the cargo tank above the liquid level for a full tank in any condition of heel or trim resulting from the damage specified in §172.135 of this chapter. [CGD 73–96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 79–023, 48 FR 51009, Nov. 4, 1983]
Title 46: Shipping
PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS
Subpart B—Design and Equipment
Cargo Containment Systems
§ 153.235 Exceptions to cargo piping location restrictions.

