Association football | association football | Forward (association football) | Goalkeeper (association football) | Defender (association football) | National Basketball Association | American Association for the Advancement of Science | Association of Tennis Professionals | American Library Association | World Boxing Association | National Collegiate Athletic Association | operating system | American Association | American Heart Association | National Association of Intercollegiate Athletics | Android (operating system) | National Rifle Association | International Development Association | National Association for the Advancement of Colored People | American Bar Association | Philippine Basketball Association | American Medical Association | train | International Air Transport Association | World Hockey Association | Women's Tennis Association | Gaelic Athletic Association | Substitute (association football) | Progressive Conservative Association of Alberta | American Association (19th century) |
In 2000, the Association of Train Operating Companies (ATOC), which brings together all of Britain's national rail train companies, appointed ACP Rail to be the official distributor for BritRail and ACP Rail continues to do so.