The formal name of this group, which was founded in 1950, is the National Council of the Churches of Christ in the USA. It is commonly called the National Council of Churches, and that term is acceptable in all references. Use NCC on second reference. The NCC is an ecumenical organization that is the major national umbrella group for mainline Protestant, Anglican, Orthodox, historic African-American and Living Peace churches. More than 50 other faith groups, including Roman Catholics, work with the council on humanitarian, justice and interfaith issues.