Membership now: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, The Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom

Future candidates: Western Balkan countries : Albania, Bosnia, Montenegro, Serbia; also Kosovo under UN Security Council Resolution 1244 of 1999.

Iceland applied for membership on 23 July 2009.