(a) Except as otherwise provided by this section, a jockey engaged for a certain race or for a specified time may not fail or refuse to abide by the engagement agreement, unless excused by the stewards.(b) A jockey may be excused by the stewards from fulfilling the jockey's riding engagements if:(1) the jockey believes the horse he or she is to ride is unsafe, or the racecourse he or she is to ride on is unsafe; or(2) the jockey is ill or injured.(c) The stewards may require a jockey who is excused from fulfilling a riding engagement because of illness or injury to pass a physical examination conducted by a licensed physician before resuming race riding.(d) A trainer or owner may demand a written confirmation of an engagement from a jockey or jockey agent.(e) The stewards shall decide conflicting claims for the services of a jockey.