Article 94 of the United Nations Convention on the Law of the Sea, 1982 (UNCLOS) requires that every State shall effectively exercise its jurisdiction and control in administrative, technical and social matters over ships flying its flag. In particular every State must maintain a register of ships (other than small ships) and assume jurisdiction under its internal law over each ship flying its flag and its master, officers and crew in respect of administrative, technical and social matters concerning the ship.
What are the duties of a flag State under international law?
