In addition to the requirements contained elsewhere in the present regulations, ships shall be designed, constructed and maintained in compliance with the structural, mechanical and electrical requirements of a classification society which is recognized by the Administration in accordance with the provisions of regulation XI-1/1, or with applicable national standards of the Administration which provide an equivalent level of safety.

[Regulation 3-1 Part A-1 of Chapter II-1 of the Annex to the Second Schedule (Protocol of 1978 Relating to the International Convention for the Safety of Life at Sea, 1974) inserted by Notice No. 4133, GG55299, dated 4 September 2026]