(a) A horse starting in a race must carry a conspicuous saddle cloth number corresponding to its number in the official program. Quarter Horses, Paints, and Appaloosas shall, and Thoroughbreds and Arabians may, wear head numbers that correspond to their numbers in the official program. The Stewards may waive the requirement for a horse to wear a head number in the interest of safety or in the case of missing or damaged equipment.(b) The jockey for a horse starting in a race shall be properly attired for riding in the race and wear:(1) the racing colors provided by the owner of the horse the jockey is to ride, plus white riding pants, boots, and a number on the right shoulder corresponding to the mount's number as shown on the saddle cloth, head number if provided, and in the official program; and(2) a safety helmet meeting the requirements of §311.218 of this title (relating to Safety Equipment).(c) If an owner does not have colors, the jockey shall wear colors provided by the association.