Title 33 › CHAPTER 29 — DEEPWATER PORTS › § 1518
The United States must apply its Constitution, federal laws, and treaties to any licensed deepwater port and to activities that affect its use or operation, treating the port like federal land inside a State. Deepwater ports are not islands and have no territorial seas. State and federal duties inside the normal territorial seas stay the same. The Secretary of State will tell foreign governments whose ships might use a deepwater port that the U.S. intends to have jurisdiction over those ships and the people aboard while they call at the port or are in the port’s safety zone and doing related activities. If a foreign government objects, the United States will not apply that jurisdiction to ships of that country. The Secretary of State must also tell port licensees about any objections. The law of the nearest adjacent coastal State (the State whose seaward boundary, if extended past 3 miles, would reach the port site) becomes federal law for the port when it fits with other federal rules and will be enforced by U.S. officers and courts. Except for force majeure, a port licensee must not let a foreign‑flag ship call at the port unless the foreign state agrees to U.S. jurisdiction or has not objected, and the ship’s owner has named a U.S. agent for legal service. Customs laws do not apply to the port itself, but foreign parts used to build the port must pay the same duties and taxes as if they were imported for use in the United States. U.S. district courts have original jurisdiction over disputes about building or running deepwater ports, and cases can be filed where a defendant lives or in the district of the nearest adjacent coastal State.
Full Legal Text
Navigation and Navigable Waters, Source: USLM XML via OLRC
Legislative History
Reference
Citation
33 U.S.C. § 1518
Title 33, Navigation and Navigable Waters
Last Updated
Sep 22, 2026
Release point: 119-110