Sanctions Evasion Reference

Open registry

A ship registry that accepts vessels owned by foreign nationals without requiring a national ownership or crewing link.

reviewed

2026-08-20

Open registries are a normal feature of the shipping industry and several are well resourced and well regarded. The category is administrative, not pejorative.

The distinction that matters for detection is between registries that verify what they certify and those whose registration function has been outsourced to a commercial agent operating from a third country, where the state itself may not know what has been registered in its name.

Where this term is used

  • What is flag hopping? — Re-registering a ship repeatedly between flag states, often to registries with limited oversight, so that its regulatory history is broken and its documented identity keeps changing.
  • What is opaque marine insurance? — Presenting protection and indemnity or hull cover from a provider that cannot be identified, or whose ability to meet a claim cannot be established, in order to satisfy a requirement to be insured.
  • What is a ship-to-ship transfer? — Transferring cargo directly between two vessels at sea, rather than through a port, so that the cargo changes hands where there is no port authority, no customs entry and no independent record.

Related terms

  • Flag state — The country in which a ship is registered, whose law governs the vessel and which is responsible for inspecting and certifying it.
  • Flag of convenience — Registration of a ship in a state with which its owners have no genuine connection, chosen for cost, tax or regulatory reasons.
  • Zombie registry — A ship registry that continues to issue documentation in a state's name after that state has withdrawn authorisation, or that never had it.

Sources

  1. Guidance to Address Illicit Shipping and Sanctions Evasion Practices. U.S. Department of State, U.S. Department of the Treasury and U.S. Coast Guard, 2020. Global maritime advisory, 14 May 2020.
  2. Reports of the Panel of Experts, 1718 Committee (Democratic People's Republic of Korea). United Nations Security Council, 2024.

All glossary terms