Half-Arabians that are to be shown in the following classes at AHA National Shows must have DNA on file:
DNA type of the horse and the horse's Purebred Arabian parent must be placed on permanent record with the AHA Registry and the horse has been shown to qualify as an offspring of the stated purebred sire or purebred dam through DNA type testing. DNA testing will be at the owner's expense and must be on file with the AHA office before the horse will be eligible to compete. If the DNA is not on file prior to that National Show, the horse is ineligible to be shown and all nomination fees will be forfeited.
To obtain a DNA testing kit for Half-Arabians, please contact Registry Services at 303.696.4500 option 2 or email info@arabianhorses.org
The Half-Arabian DNA Frequently Asked Questions can be found at https://www.arabianhorses.org/registration/faq/
-- via AHA