Pennsylvania Code
Title 7 - AGRICULTURE
Part VIII - State Horse Racing Commission
Subpart E - Thoroughbred Rules of Racing (Horse)
Chapter 305 - RULES OF THOROUGHBRED RACING-TEMPORARY REGULATIONS
RUNNING OF THE RACE
Section 305.286 - Interference, jostling or striking

(a) A jockey shall not carelessly or intentionally permit the horse the jockey is riding to interfere with, impede or intimidate any other horse in the race.

(b) No jockey shall carelessly or intentionally jostle, strike or touch another jockey or another jockey's horse or equipment at any time in the race.

(c) No jockey shall unnecessarily or unreasonably cause the horse the jockey is riding to shorten its stride or pull up, so as to give the appearance of having suffered a foul.