ARSD 20:04:22:41. No allowance for quarter horse races

An apprentice jockey may ride in a race in which quarter horses are eligible to start, but may not claim apprentice allowance in such a race. The riding of the winner of such a race shall not be considered in computing the expiration of his right to claim apprentice allowance in races restricted to thoroughbreds and included in the monthly chart book of the daily racing form.