279.1. A driver, trainer or groom shall not use a whip in any of the following situations:(a) the horse is not responding to the stimulation of the whip;
(b) the horse can no longer improve its position in the race;
(c) the horse is not maintaining or improving its position in the race;
(d) the horse is winning;
(e) the horse has passed the finishing post at the end of the race;
(f) so as to cut the horse or leave marks on it.