11 Va. Admin. Code § 10-140-230
A jockey shall be responsible for making his best effort to control and guide his mount during the running of the race so that it does not jostle, impede, interfere or intimidate another horse or jockey.
§ 59.1-369 of the Code of Virginia.
Derived from VR662-05-01 § 4.4, eff. September 26, 1991.