No Trainer shall permit a horse in his/her charge to be taken on to the track for training or a workout except during hours designated by the organization licensee; and a Trainer desiring to engage a horse in a workout or schooling race shall, prior to such workout or race, identify the horse by registered name and tattoo number when requested to do so by the Stewards, the Starter or their authorized representative.
Okla. Admin. Code § 325:35-1-7