In addition to the requirements of this article, the commissioner of motor vehicle safety, as to the motor vehicles within the jurisdiction of the Department of Motor Vehicle Safety, shall have the authority to promulgate rules designed to promote safety pursuant to the provisions of Chapter 16 of this title and Chapter 7 of Title 46. Any such rules promulgated or deemed necessary by the commissioner shall include the following: every motor unit and all parts thereof shall be maintained in a safe condition at all times. The lights, brakes, and equipment shall meet such safety requirements as the commissioner shall promulgate from time to time.