33 C.F.R. § 160.107 Denial of entry.
Title 33 - Navigation and Navigable Waters
Each District Commander or Captain of the Port, subject to recognized principles of international law, may deny entry into the navigable waters of the United States or to any port or place under the jurisdiction of the United States, and within the district or zone of that District Commander or Captain of the Port, to any vessel not in compliance with the provisions of the Port and Tanker Safety Act (33 U.S.C. 1221–1232) or the regulations issued thereunder.
Title 33: Navigation and Navigable Waters
PART 160—PORTS AND WATERWAYS SAFETY—GENERAL
Subpart B—Control of Vessel and Facility Operations
§ 160.107 Denial of entry.

