(a) The provisions of this subpart, with the exception of § 190.07-90, apply to all vessels of 4,000 gross tons or more carrying not more than 150 persons and contracted for on or after March 1, 1968.

(b) The provisions of this subpart, with the exception of § 190.07-90, apply to all vessels of 300 gross tons or more, but less than 4,000 gross tons, carrying in excess of 16 persons in the scientific party but not more than 150 persons and contracted for on or after March 1, 1968.

(c) Vessels contracted for prior to March 1, 1968, must meet the requirements of § 190.07-90.

(d) Those vessels which carry more than 150 persons must meet the requirements in §§ 72.05-5 through 72.05-60 of Subchapter H (Passenger Vessels) of this chapter.

(e) Structural fire protection requirements in § 92.07-1(c) of this chapter may be considered equivalent to the provisions of this subpart.