High Quality Content by WIKIPEDIA articles! The United States Tennis Association (USTA) is the national governing body for the sport of tennis in the United States. A not-for-profit organization with more than 700,000 members, it invests 100% of its proceeds to promote and develop the growth of tennis, from the grass-roots to the professional levels. The association was created to standardize rules and regulations and to promote and develop the growth of tennis in the United States.