United States Tennis Association

"United States Tennis Association"' (USTA) is the organization that controls tennis at the national level in the United States. It is a non-profit private organization formed in 1881 to standardize the rules of tennis. It is affiliated with the International Tennis Federation, which is the international governing body of tennis.
At present USTA has more than 700,000 members. Its aim is to promote and develop the game of tennis and to develop better infrastructure for tennis. The USTA runs the Billie Jean King National Tennis Center which hosts the U.S. Open, the last grand slam of the year.