Virginia Code Title 46.2. Motor Vehicles § 46.2-1026. Flashing high-intensity amber warning lights

A. High-intensity flashing, blinking, or alternating amber warning lights visible for at least 500 feet, of types approved by the Superintendent, shall be used on any vehicle engaged in either escorting or towing over-dimensional materials, equipment, boats, or manufactured housing units by authority of a highway hauling permit issued pursuant to § 46.2-1139. Such lights shall be mounted on the top of the escort and tow vehicles and on the upper rear end of the over-dimensional vehicles or loads for maximum visibility, front and rear. However, any vehicles operating under a permit issued pursuant to § 46.2-1139 shall be deemed to be in compliance with the requirements of this subsection if accompanied by escort vehicles.

The provisions of this subsection shall apply only to vehicles or loads that are either (i) more than 12 feet wide or (ii) more than 75 feet long.

B. Such amber warning lights may be used on any vehicle used by any public utility company for the purpose of repairing, installing, or maintaining electric or natural gas utility equipment or service.