46 C.F.R. § 10.1103 Definitions.
Title 46 - Shipping
Passenger ship in this subpart means a ship, other than a Ro-Ro passenger ship, carrying more than 12 passengers when on an international voyage.
Title 46: Shipping
PART 10—LICENSING OF MARITIME PERSONNEL
Subpart K—Officers on a Passenger Ship, Other Than a Ro-Ro Passenger Ship, When on an International Voyage
§ 10.1103 Definitions.

