Va. Code Ann. § 46.2-857

A person shall be guilty of reckless driving who drives any motor vehicle so as to be abreast of another vehicle in a lane designed for one vehicle, or drives any motor vehicle so as to travel abreast of any other vehicle traveling in a lane designed for one vehicle. Nothing in this section shall be construed to prohibit two two-wheeled motorcycles from traveling abreast while traveling in a lane designated for one vehicle. In addition, this section shall not apply to (i) any validly authorized parade, motorcade, or motorcycle escort; (ii) a motor vehicle traveling in the same lane of traffic as a bicycle, electric personal assistive mobility device, electric power-assisted bicycle, or moped; nor shall it apply to (iii) any vehicle when lawfully overtaking and passing one or more vehicles traveling in the same direction in a separate lane.