Rule 4240. If, in the opinion of the stewards or the official starter, a horse is unmanageable or liable to cause accidents or injury to any other horse or to any driver, it may be scratched. When this action is taken by the official starter, the stewards must be notified and the stewards must notify the public. When this action is taken by the stewards, the stewards must notify the official starter and the stewards must notify the public.
Mich. Admin. Code R. 431.4240