ARSD 20:04:22:12. Duty of jockey to fulfill engagements -- Penalty for failure to fulfill engagement

Jockeys shall fulfill all engagements unless excused by the stewards. Inability to fulfill engagements shall be reported to and receive the approval of the stewards. Unless excused by the stewards, a jockey, who has given a call personally or through his agent, who fails to fulfill an engagement shall be fined at least $100 and may not accept another mount or be assigned by the stewards to another mount in that race.