A horse's name can be changed as long as certain criteria are met. If a horse is registered in the AQHA, his name can be changed if he hasn't competed in an AQHA show or special event, and if a horse has not started in a recognized race. For the change of name AQHA requires receipt of an acceptable name choice, the original registration certificate and payment of the fee. A new registration certificate must also be issued. When changing a horse's name, it is important to have the name written on the original registration certificate, along with the current owner's address and phone number. An official copy of the certificate is also required for the change.  Horse names are chosen with reference to the breed and individual temperament. The name should be unique and not confusing to other horses. It can indicate gender, age, color, size, temperament or any other personal characteristic.