11 Va. Admin. Code § 10-140-50
The trainer shall be responsible for the saddling of the horse, and in his absence, he must assign an assistant or substitute trainer to saddle each horse entered by him. All horses must be saddled in the paddock unless permission to saddle horses elsewhere has been granted by the stewards.
§ 59.1-369 of the Code of Virginia.
Derived from VR662-05-01 § 2.4, eff. September 26, 1991; amended, Virginia Register Volume 33, Issue 2, eff. October 19, 2016.