The practice of registering a merchant ship in a country other than that of its owners, so the ship flies that flag state's civil ensign. Owners do this to cut operating costs and escape home country taxes and labor protections; the practice originated in the United States around the First World War, and the open registries of Panama, Liberia and the Marshall Islands now account for roughly half the world fleet by tonnage. The International Transport Workers' Federation has campaigned against the practice since 1948 and maintains a list of registries it considers flags of convenience, which numbered 48 as of November 2025.
Facts
Core ConcernRegistering ships abroad to escape home country cost and regulation 1 FAQs
Which countries operate the largest flag of convenience registries?
Panama, Liberia and the Marshall Islands, whose open registries together account for roughly half the world fleet by tonnage.
A flag of convenience is the practice of registering a merchant ship in a country other than that of its owners, so the ship flies that flag state's civil ensign. Owners do this to cut operating costs and escape home country taxes and labor protections. The practice originated in the United States around the First World War, and the open registries of Panama, Liberia and the Marshall Islands now account for roughly half the world fleet by tonnage.
Connections
Sources
1. Wikipedia: Flag of Convenience
WikipediaLead section
They may also select a jurisdiction to reduce operating costs, avoiding higher taxes in the owners' country and bypassing laws that protect the wages and working conditions of mariners.
Extent of use section
The International Transport Workers' Federation (ITF) is the biggest campaigner against FOC since 1948, and maintains a list of registries it considers to be flags of convenience.
In Group: Ship Operations and Chartering Concepts, Lead sentence
Flag of convenience (FOC) refers to a business practice whereby a ship's owners register a merchant ship in a ship register of a country other than that of the ship's owners, and the ship flies the civil ensign of that country, called the flag state.
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