Every public utility shall file with the commission, and keep open to public inspection, schedules showing all the rates, charges and tolls for service to be rendered by it or by other persons, firms or corporations in connection with it: Provided, That the reports and tariffs filed by interstate carriers with the Public Service Commission may be copies of its reports and tariffs filed with the Interstate Commerce Commission; but nothing herein shall preclude the Public Service Commission from requiring interstate carriers to furnish information bearing upon any complaint or question pending before said Public Service Commission and with which it has a right to deal.
West Virginia Legal Code