Can you register a horse without knowing the sire and dam?

You must know the parents of an American Quarter Horse to register a foal with AQHA.

Part of AQHA’s mission statement is to record and preserve the pedigree of the American Quarter Horse while maintaining the integrity of the breed and welfare of its horses. Because of this, a horse cannot be registered without knowing the sire and dam.

Tracking parentage and ownership are core to the integrity of the American Quarter Horse Association studbook. An application for registration must include the parentage information.