46 C.F.R. § 122.504 Passenger count.
Title 46 - Shipping
The master of a vessel, except a vessel listed in §122.502(a), shall keep a correct, written count of all passengers that embark on and disembark from the vessel. Prior to departing on a voyage, the passenger count must be communicated verbally or in writing, and available ashore at the vessel's normal berthing location or with a representative of the owner or managing operator of the vessel. The passenger count shall be available to the Coast Guard upon request.
Title 46: Shipping
PART 122—OPERATIONS
Subpart E—Preparations for Emergencies
§ 122.504 Passenger count.