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From Australian Quarter Horse Association:
The current rules and regulations of the Australian Quarter Horse Association.The Australian Quarter Horse Association was incorporated in 1972 and over the years has expanded to serve a rapidly growing and diverse industry. In addition to preserving the breed through registration guidelines and record keeping, the AQHA is also dedicated to serving each of its Members. So with approximately 7,000 new registrations every year, AQHA's role continues to expand.