WAC 260-40-120
WAC 260-40-120. Identification prerequisite to start
(1) No horse may start that has not been properly identified.
(2) All horses must be properly tattooed by the thoroughbred racing protective bureau or an approved breed registry, or freeze marked in a manner that meets the standards of the National Crime Information Center.
A horse will not be allowed to start if a tattoo which is done physically is not applied at least twenty-four hours prior to scheduled post time.
(3) No horse may start unless ownership is first established.