WVC 17 - 22 - 9
§17-22-9. Signs, displays and devices providing information for
the traveling public; location.
Signs, displays and devices giving specific information in the
interest of the traveling public may be erected and maintained,
pursuant to agreement between the Commissioner of Highways and the
Secretary of Transportation, within the rights-of-way of highways
within the federal-aid interstate system, at appropriate distances
from interchanges on such interstate system.