Section 173.054 - Watertight subdivision and damage stability standards for new sailing school vessels(a) Each new sailing school vessel which has a mean length greater than 75 feet (22.8 meters) or which carries more than 30 persons must comply with-(1) Section 179.210(a) of this chapter;(2) Sections 171.070 through 171.073 ; and(3) Section 171.080 for Type II subdivision and damage stability.(b) Each new sailing school vessel which has a mean length of 75 feet (22.8 meters) or less and carries more than 30 persons must comply with either- (1) Section 179.210(a) of this chapter and § 179.220 of this chapter; or(2) Section 171.040(a)(1), §§ 171.070 through 171.073 , and § 171.080 .(c) Each new sailing school vessel which does not carry more than 30 persons must have a collision bulkhead unless it has a mean length less than 40 feet (12.2 meters) and is certificated for protected or partially protected waters service only.CGD 83-005, 51 FR 924, Jan. 9, 1986, as amended by CGD 85-080, 61 FR 946, Jan. 10, 1996