The Catholic Church first prohibited Catholics from membership in Masonic organizations and other secret societies in 1738. Since then, at least eleven popes have made pronouncements about the incompatibility of Catholic doctrines and Freemasonry. From 1738 until 1983, Catholics who publicly associated with, or publicly supported, Masonic organizations were censured with automatic excommunication. Since 1983, the prohibition on membership exists in a different form. Although there was some confusion about membership following the 1962-1965 Second Vatican Council (Vatican II), the Church continues to prohibit membership in Freemasonry because it believes that Masonic principles and rituals are irreconcilable with Catholic doctrines. The current norm, the 1983 Congregation for the Doctrine of the Faith's (CDF) Declaration on Masonic associations, states that "faithful who enroll in Masonic associations are in a state of grave sin and may not receive Holy Communion" and membership in Masonic associations is prohibited. The most recent CDF document about the "incompatibility of Freemasonry with the Catholic faith" was issued in 1985.