46 C.F.R. § 540.22 Proof of financial responsibility, when required.
Title 46 - Shipping
No vessel shall embark passengers at U.S. ports unless a Certificate (Casualty) has been issued to or covers the owner or charterer of such vessel.
Title 46: Shipping
PART 540—PASSENGER VESSEL FINANCIAL RESPONSIBILITY
Subpart B—Proof of Financial Responsibility, Bonding and Certification of Financial Responsibility to Meet Liability Incurred for Death or Injury to Passengers or Other Persons on Voyages
§ 540.22 Proof of financial responsibility, when required.