As a courtesy:
RCIA: Rite of Christian Initiation for Adults
CCD: Confraternity of Christian Doctrine
Is there such a thing as “Confraternity of Christian Doctrine,” or is it simply a code term for “religious education.” I’ve never met anyone who said, “I’m in the Confraternity of Christian Doctrine,” or anything like that.
RCIA, although it may puzzle some people, is at least an acronym for an ongoing program in most parishes.