As to all vehicles and equipment used by a waste hauler, the licensee shall:
1. Prevent waste and wastewater from leaking, spilling, or discharging onto roads or rights-of-way.
2. Ensure proper construction and repair of the equipment to allow cleaning.
3. Maintain vehicles and equipment in an essentially rust free and sanitary condition and appearance.
4. Display the business name as it appears on the waste hauler license in three-inch or larger letters on the left and right sides of the vehicle.