The United States Tennis Association (USTA) is the national governing body for tennis in the United States. Founded in 1881, it promotes and develops the sport at all levels, from grassroots programs to professional competitions. The USTA is responsible for organizing major events, including the US Open, one of the four Grand Slam tournaments. In addition to hosting tournaments, the USTA offers various programs to encourage participation in tennis, such as youth initiatives and adult leagues. The organization also works to improve facilities and provide resources for players, coaches, and officials, ensuring the growth and accessibility of tennis across the country.