CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER S—SUBDIVISION AND STABILITY (parts 170 to 174) > PART 172—SPECIAL RULES PERTAINING TO BULK CARGOES > SUBPART F—Special Rules Pertaining to a Ship That Carries a Hazardous Liquid Regulated Under Subchapter O of This Chapter (§172.125 to §172.150) > 172.133—Character of damage.

172.133—Character of damage.

(a) If a type I hull is required, design calculations must show that the vessel can survive damage at any location.
(b) Except as provided in § 153.7 of this chapter, if a type II hull is required, design calculations must show that a vessel—
(1) Longer than 492 feet (150 meters) in length can survive damage at any location; and
(2) Except as specified in paragraph (d) of this section, 492 feet (150 meters) or less in length can survive damage at any location.
(c) If a Type III hull is required, design calculations must show that a vessel—
(1) Except as specified in paragraph (d) of this section, 410 feet (125 meters) in length or longer can survive damage at any location; and
(2) Less than 410 feet (125 meters) in length can survive damage at any location except to an aft machinery space.
(d) A vessel described in paragraph (b)(2) or (c)(1) of this section need not be designed to survive damage to a main transverse watertight bulkhead bounding an aft machinery space. Except as provided in § 153.7 of this chapter, the machinery space must be calculated as a single floodable compartment.
[CGD 79-023, 48 FR 51040, Nov. 4, 1983, as amended by CGD 81-101, 52 FR 7799, Mar. 12, 1987]