(a) An operating authority shall maintain all motorized vehicles operating under its permit, and a driver shall maintain the motorized transportation-for-hire vehicle he or she is driving for hire, in accordance with the Texas Department of Public Safety Vehicle Inspection program. Additionally, each vehicle must be deemed safe, mechanically sound, and road worthy. The exterior and interior must be clean and meet the following standards:
(1) body panels, trim, and moldings are free of dents and scratches (other than minor dents and scratches that are less than five inches in length and less than 0.5 inch in depth);
(2) paint is in good condition, free of unrepaired damage, visible fading, mismatched colors, or excessive orange peel;
(3) front and rear tires, wheels, and wheel covers match and are the proper size and type for the vehicle;
(4) all recall work recommended by the vehicle's manufacturer has been performed;
(5) air conditioner, heater, and defoggers function properly;
(6) all exterior lights function and are aimed as designed by the manufacturer;