36. United States Polo Association
The United States Polo Association (USPA) was organized in 1890 to promote the game of polo, coordinate the activities of its member clubs and individuals and arrange and supervise national and international polo games.
38. USA EQUESTRIAN
USA Equestrian, as the national equestrian federation of the U.S., is the regulatory body for the Olympic and World Championship equestrian sports - Dressage, Driving, Endurance, Eventing, Reining, Show Jumping and Vaulting - as well as 18 other breeds and disciplines of competition
