Definition: Nationality of registration of seagoing vessel (Flag state)
Country and/or territory authorising the registry of a seagoing vessel.
Note: A seagoing vessel is subject to the maritime regulations in respect of manning scales, safety standards and consular representation abroad of its country and/or territory of registration. Some countries e.g. Norway and Denmark provide "international" or "open" registers where the requirements are different from those in the "national" register.
Glossary For Transport Statistics, Eurostat, ECMT, UN/ECE, Third edition