The American Platform Tennis Association is a non-profit organization that governs the sport for its 26,000 members, which includes individuals, municipalities, clubs and leagues. The APTA has overseen the national tournaments since its founding in 1934. Throughout the season, the APTA Ranking Committee calculates positions of teams in dozens of categories based on tournament performance. The organization provides national rankings of its members; maintains the official rules and etiquette of the sport; administers the Platform Tennis Hall of Fame; regulates standards for balls, paddles and courts; manages its web site and produces Platform Tennis Magazine.