W. Va. Code § 17C-16-1: Vehicles not to operate without required equipment or in unsafe condition.

No person shall drive or move on any highway any motor vehicle, trailer, semitrailer, or pole trailer, or any combination thereof unless the equipment upon any and every said vehicle is in good working order and adjustment as required in this chapter and said vehicle is in such safe mechanical condition as not to endanger the driver or other occupant or any person upon any highway.