46 C.F.R. § 172.048 Definitions.
Title 46 - Shipping
As used in this subpart— MARPOL 73/38 means the International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 relating to that Convention. [USCG–2000–7641, 66 FR 55574, Nov. 2, 2001]
Title 46: Shipping
PART 172—SPECIAL RULES PERTAINING TO BULK CARGOES
Subpart C—Special Rules Pertaining to a Barge That Carries a Cargo Regulated Under Subchapter D of This Chapter
§ 172.048 Definitions.

