W. Va. Code § 17C-16-4
(a) The Superintendent of the West Virginia State Police shall require that every motor vehicle, trailer, semitrailer, and pole trailer registered in this state be inspected once every two years; and that an official certificate of inspection and approval be obtained for each vehicle: Provided, That commercial motor vehicles which are subject to the federal motor carrier safety administration rules and regulations should be inspected at least once annually to meet the requirements of federal motor carrier safety regulations which require a commercial motor vehicle registered in this state to pass an annual inspection of all safety equipment. The inspections shall be made and the certificates obtained with respect to the mechanism, brakes, and equipment of every vehicle designated by the superintendent.
The superintendent may make necessary rules for the administration and enforcement of this section and may designate any period or periods during which owners of any vehicles, subject to this section, shall display upon the vehicles certificates of inspection and approval or shall produce the certificates upon demand of any officer or employee of the State Police designated by the superintendent or any police or peace officer when authorized by the superintendent.
(e)