(Entered into Full Communion with the Anglican Communion, 1931; Episcopal Church, 1934; clarified, 1940; specifically noted inclusion of Polish National Catholic Church, 1946; likewise ratified and clarified by Polish National Catholic Church, 1946. Polish National Catholic Church terminated full communion in 1978; Episcopal Church did not.)
These churches are: Old Catholic Churches of the Union of Utrecht (The Old Catholic Churches of Austria, Czechoslovakia, Germany, Poland, Netherlands [Utrecht and Haarlem], and Switzerland). An International Anglican - Old Catholic International Coordinating Commission meets biennially.