8ball - Standardized Rules of Play

Standardized Rules of Play

American-style eight-ball rules are played around the world by professionals, and in many amateur leagues. Nevertheless, the rules for eight-ball may be the most contested of any billiard game. There are several competing sets of "official" rules. The non-profit World Pool-Billiard Association (WPA) – with national affiliates around the world, some of which long pre-date the WPA, such as the Billiard Congress of America (BCA) – promulgates standardized rules as Pool Billiards – The Rules of Play for amateur and professional play. Meanwhile, many amateur leagues, such as the American Poolplayers Association (APA) / Canadian Poolplayers Association (CPA), and the Valley National Eight-ball Association (VNEA, international in scope despite its historic name), use their own rulesets (most of them at least loosely based on the WPA/BCA version), while millions of individuals play informally using colloquial rules which vary not only from area to area but even from venue to venue.

A summary of the international rules follows (see the WPA/BCA or other leagues' published rules, which conflict on minor points, for more details).