If an eligibility or validation certificate has been issued and it is determined thereafter that the horse for which the certificate has been issued has equine infectious anemia or is a carrier thereof, the certificate must be returned immediately by the holder to the United States Trotting Association and the horse must vacate the premises as required under the provisions of § 183.37 (relating to requirements for admission of horses to Pennsylvania Pari-Mutuel Racing Association plants).
58 Pa. Code § 183.125
This section cited in 58 Pa. Code § 181.1 (relating to definitions).