W. Va. Code § 24A-3-4: Regulatory powers of commission.

The commission is hereby vested with power and authority, and it shall be its duty, to supervise and regulate contract carriers by motor vehicle for the purpose of promoting safety of their operation as transportation agencies upon the highways; to regulate and supervise the accounts and method of keeping the same; to prescribe such rules and regulations as it may deem necessary to carry out the provisions of this chapter; and to supervise and regulate contract carriers by motor vehicle in all matters affecting the relationship between such carriers and the traveling and shipping public.