United States Equestrian Federation

National governing body for most equestrian sports in the United States. It began on January 20, 1917 as the Association of American Horse Shows, later changed in 1933 to the American Horse Shows Association (AHSA). In 2001, the organization changed its name to USA Equestrian (USAE) and, in 2003 it merged with the United States Equestrian Team (USET) to form the present organization.

United States Dressage Federation

The United States Dressage Federation, or the USDF, is the national membership federation for the equestrian sport of dressage. Running under the USEF, the Federation is committed to education, recognition of achievement and promotion of dressage in the United States.

Founded in 1973, the USDF now has over 33,000 members. It offers year-end awards for every level of competition, as well as different breeds, junior and young riders, and adult amateur riders.

The USDF also has an instructor certification program, and offers many clinics for riders of all levels.