Va. Code § 46.2-2088
Every common carrier regulated pursuant to this article shall establish reasonable through routes with other such common carriers and shall provide safe and adequate service, equipment, and facilities for the transportation of passengers; shall establish, observe, and enforce just and reasonable individual and joint rates, fares and charges and just and reasonable regulations and practices relating thereto, and to the issuance, form, and substance of tickets, the carrying of baggage, the facilities for transportation, and all other matters relating to or connected with the transportation of passengers; and in case of such joint rates, fares, and charges, shall establish just, reasonable and equitable divisions thereof as between the carriers participating therein which shall not unduly prefer or prejudice any of such participating carriers.
Va. Code § 46.2-2088