Membership groups

The Red Ensign GroupThe shipping registers of the United Kingdom, the Crown Dependencies and the British Overseas Territories, working as one group under a shared quality standard.
The European UnionA union of European states sharing a single market and a common body of law, which the registers of its member states operate inside.
The European Union Aviation Safety AgencyThe European Union's aviation safety authority, whose common airworthiness, maintenance and licensing rules the participating states apply.