33 U.S.C. § 1603 - U.S. Code - Unannotated Title 33. Navigation and Navigable Waters § 1603. Vessels subject to International Regulations

(1) all vessels, public and private, subject to the jurisdiction of the United States, while upon the high seas or in waters connected therewith navigable by seagoing vessels, and

(2) all other vessels when on waters subject to the jurisdiction of the United States.