46 C.F.R. § 42.15-5 Superstructure end bulkheads.
Title 46 - Shipping
(a) Bulkheads at exposed ends of enclosed superstructures shall be of efficient construction and shall be to the satisfaction of the assigning authority. [CGFR 68–60, 33 FR 10060, July 12, 1968, as amended by CGFR 68–126, 34 FR 9014, June 5, 1969]
Title 46: Shipping
PART 42—DOMESTIC AND FOREIGN VOYAGES BY SEA
Subpart 42.15—Conditions of Assignment of Freeboard
§ 42.15-5 Superstructure end bulkheads.