46 C.F.R. § 151.01-1
This part applies to the following:
(a) Oceangoing, as defined in 33 CFR 151.05(j), non-self-propelled United States ships and non-self-propelled foreign ships operating in United States waters that carry a bulk cargo that is—
(b) All non-self-propelled United States ships that are not oceangoing that carry a bulk cargo that is—
[CGD 81-101, 52 FR 7776, Mar. 12, 1987, as amended by CGD 84-043, 55 FR 37413, Sept. 11, 1990]