Rule 4290. A protective nose shield may be worn by standardbred horses in parimutuel races when the executive director determines that weather conditions warrant the use for humane considerations. The stewards shall approve the type of protective nose shield permitted. Under no circumstance shall the protective nose shield be constructed of material other than that which is transparent. For purposes of photo finishes, the winner of the race shall be the horse whose nose or protective nose shield reaches the wire first.
Mich. Admin. Code R. 431.4290