United States Soccer Federation - More properly known as US Soccer, the governing body for soccer in the United States. The acronym USSF is still used but is limited to designating the referee program. Visit the US Soccer web site.

United States Soccer Association, the governing body of soccer in the U.S.

organization formed in 1913 to govern soccer in the USA. This is America's link to FIFA, providing soccer rules and guidelines to players, referees and spectators nationwide.