7 Pa. Code § 305.293 – Prohibition.

(a) Prohibited use of the riding crop includes but is not limited to striking a horse:
1. (1) On the head, flanks or on any other part of its body other than the shoulders or hind quarters except when necessary to control a horse;
2. (2) During the post parade or after the finish of the race except when necessary to control the horse;
3. (3) Excessively or brutally causing welts or breaks in the skin;
4. (4) When the horse is clearly out of the race or has obtained its maximum placing;
5. (5) Persistently even though the horse is showing no response under the riding crop; or
6. (6) Striking another rider or horse.
(b) After the race, horses will be subject to inspection by a racing or official Veterinarian looking for cuts, welts or bruises in the skin. Any adverse findings shall be reported to the Stewards.
(c) The giving of instructions by any licensee that if obeyed would lead to a violation of this rule may result in disciplinary action also being taken against the licensee who gave these instructions.