StacksVerified U.S. regulatory reference

46 CFR §153.231

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
A type II containment system must meet the following requirements:
  1. (a)The vessel must meet the requirements in subpart F of part 172 of this chapter for a type I or II hull.
  2. (b)Except as allowed in §§ 153.7 and 153.235—
    1. (1)It may be no closer to the tankship's shell than 76 cm (approx. 29.9 in.); and
    2. (2)It may not be located in any part of the tankship subject to the damage described in Table 172.135 of this chapter for Grounding Penetration, Vertical extent from the baseline upward.