Virginia Code Title 46.2. Motor Vehicles § 46.2-812. Driving more than thirteen hours in twenty-four prohibited

No person shall drive any motor vehicle on the highways of the Commonwealth for more than thirteen hours in any period of twenty-four hours or for a period which, when added to the time such person may have driven in any other state, would make an aggregate of more than thirteen hours in any twenty-four-hour period.  The provisions of this section, however, shall not apply to the operation of motor vehicles used in snow or ice control or removal operations or similar emergency situations.

No owner of any vehicle shall cause or permit it to be driven in violation of this section.