 This means of becoming professional was later replaced by a series of "pro ticket" events.Prior to the formation of the WPBSA, the world governing body of both snooker and English billiards was the Billiards Association and Control Council (BACC or BA&CC), later known as the Billiards and Snooker Control Council.The BACC announced in August 1968 that the world professional snooker championship would be run on a knockout basis, rather than the challenge system that had been in place from 1964 and in September 1969 that "The BA &CC and Professional Billiard Players Association have reached agreement regarding procedure for turning professional and other events governed by the BA CC."