The Arabian Horse Association (AHA
) is the single national organization that is the only breed registry that registers Arabian horses in the United States. It also works with the United States Equestrian Federation to sanction horse shows and license judges for Arabian horses. The AHA
was formed by a merger between the International Arabian Horse Association (IAHA
) and the Arabian Horse Registry of America (AHRA
) in 2003. AHRA
was the older of the two organizations, a breed registry founded in 1908. IAHA
, founded in 1950, organized to “meet the breeding, competitive and recreational interests of all Arabian horse owners,” and also maintained a Half-Arabian and Anglo-Arabian registry.