Flagging out

Each vessel normally flies the flag of the owner’s country. That means it is registered in the national register of that particular country. Flagging in is the process of adding a vessel to the national registry and “flagging out” is the process of removing a vessel from a national registry. Generally flagging out refers to the practice of switching the vessel’s registration to another country to fly operate it under a “flag of convenience”. However, some vessels that have been deleted from national registries end up operating under no flag at all.