The American Quarter Horse Association (AQHA) is a non-profit organization founded in 1940 that focuses on the promotion and registration of the American Quarter Horse. It is the largest equine breed registry in the world, dedicated to preserving the breed's history and ensuring its quality. The AQHA also provides educational resources and support for horse owners and enthusiasts. In addition to registration, the AQHA organizes various events and competitions, including rodeos and horse shows, to showcase the versatility and skills of Quarter Horses. The association also offers programs for youth and amateur riders, fostering a community around this popular breed.