Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.157.600 Purpose and applicability

(1) Is 5,000 gross tons or more;

(2) Carries other non-petroleum oil in bulk as cargo or cargo residue;  and

(3) Is not equipped with a double hull meeting § 157.10d of this part, or an equivalent to the requirements of § 157.10d, but required to be equipped with a double hull at a date set forth in 46 U.S.C. 3703a (b)(3) and (c)(3).