No horse shall be permitted to start in a race unless it has been lip tattooed, has been freeze branded with an identifying number, or has received an electronic horse identification microchip that accurately identifies the horse and is compliant with the International Organization of Standardization (ISO).
Ill. Admin. Code tit. 11, § 1307.80
Amended at 19 Ill. Reg. 13911, effective October 1, 1995