The American Miniature Horse Association (AMHA)

The American Miniature Horse Association (AMHA) was founded in 1978. Horses registered with AMHA must meet the "AMHA Standard of Perfection" and cannot exceed 34 inches in height at the withers as measured from the last hairs of the mane.

The AMHA organizes the yearly AMHA World Show, one of the largest and most prestiguous international miniature horse shows in the world.

The AMHA registry was closed on December 31, 1987, allowing only horses with AMHA-registered parents to be registered. To further ensure the breed's integrity, all foals born after December 31, 1995 must be blood-typed and/or DNA-tested before any of their offspring can be registered. However, up until end 2013 hardshipping of AMHR registered miniature horses into the AMHA was still allowed. This has lead to some of the smaller sub-34" American Shetland Ponies being triple registered under ASPC/AMHR/AMHA. The modern miniature horses resulting from the infusion of ASPC blood have proven very successful in the showring, demonstrated by triple-registered ASPC ponies winning the AMHA World Supreme Halter horse title in the two most recent AMHA World Shows.

More information on AMHA can be found on the American Miniature Horse Association website.