All horses scheduled to compete in a race must be present within the enclosure no later than thirty (30) minutes prior to their scheduled pre-race inspections, which are listed in the condition book , or earlier if required by the Executive Director. An organization licensee shall provide an adequate stall for a horse which is required to arrive more than thirty (30) minutes prior to the horse's scheduled pre-race inspections. Horses not within the enclosure by their deadline may be scratched and the Trainer subject to fine and/or suspension.
Okla. Admin. Code § 325:25-1-19