(a) The trainer of a horse entered in a race must ensure that the horse is present in the pre-race holding area at the time designated by the stewards.(b) The commission veterinarian shall report to the stewards the failure of a horse to report to the pre-race holding area at the appropriate time. The stewards may scratch a horse from the race if the horse is reported under this subsection.(c) Except on permission of the stewards, blinkers may not be placed on a horse until after the horse has been identified by the horse identifier.