Wash. Admin. Code § 260-16-050
(1) For purposes of the distribution of the owner's bonus and breeder's awards, a Washington-bred horse is one that meets the following requirements:
(2) The following associations are recognized by the commission for the purpose of certification of their respective breed as Washington-bred horses:
[Statutory Authority: RCW 67.16.020 and 67.16.040. WSR 07-13-052, § 260-16-050, filed 6/15/07, effective 7/16/07. Statutory Authority: RCW 67.16.020, 67.16.040 and 67.16.075. WSR 86-21-081 (Resolution No. 86-04), § 260-16-050, filed 10/16/86.]