Founded in 1955 with 19 member states, the ECAC now totals 44 members, including all 28 EU, 31 of the 32 European Aviation Safety Agency member states, and all 41 EUROCONTROL member states.
1955年刚成立时只有19个成员国，目前拥有44个成员国，包括28个欧洲联盟成员国，31个欧洲航空安全局成员国和所有41个欧洲空中航行安全组织成员国。