Va. Code § 46.2-2001
The Department shall supervise, regulate and control all motor carriers, carriers by rail, TNC brokers, and brokers not exempted under this chapter doing business in the Commonwealth, and all matters relating to the performance of their public duties and their charges therefor as provided by this chapter, and shall correct abuses therein by such carriers; and to that end the Department may prescribe reasonable rules, regulations, forms and reports for such carriers and brokers in furtherance of the administration and operation of this chapter; and the Department shall have the right at all times to require from such motor carriers, carriers by rail, TNC brokers, and brokers special reports and statements, under oath, concerning their business.
The Department shall make and enforce such requirements, rules and regulations as may be necessary to prevent unjust or unreasonable discriminations by any carrier, TNC broker, or broker in favor of, or against, any person, locality, community or connecting carrier in the matter of service, schedule, efficiency of transportation or otherwise, in connection with the public duties of such carrier, TNC broker, or broker. The Department shall administer and enforce all provisions of this chapter, and may prescribe reasonable rules, regulations and procedure looking to that end.
The Department may prescribe and enforce such reasonable requirements, rules and regulations in the matter of leasing of motor vehicles as are necessary to prevent evasion of the Department's regulatory powers.
The Department shall work in conjunction with the Department of State Police and local law-enforcement officials to promote uniform enforcement of the laws pertaining to motor carriers and the rules, regulations, forms, and reports prescribed under the provisions of this chapter.
Va. Code § 46.2-2001