46 C.F.R. § 173.058 Double bottom requirements.
Title 46 - Shipping
Each new sailing school vessel which has a mean length greater than 165 feet (50.3 meters) and is certificated for exposed water service must comply with the double bottom requirements in §§171.105 through 171.109, inclusive, of this subchapter. [CGD 83–005, 51 FR 924, Jan. 9, 1986]
Title 46: Shipping
PART 173—SPECIAL RULES PERTAINING TO VESSEL USE
Subpart C—School Ships
§ 173.058 Double bottom requirements.
