From the ordinance
Commercial motor vehicle means any motor vehicle or trailer used, designed, or maintained for the transportation of persons or property for compensation or profit, and which is one of the following types of vehicles: trucks, tractor cabs, farm tractors, construction equipment, motor passenger buses (including school buses currently used by a public or private institution of learning), trailers, semi-trailers, taxis, limousines, tow trucks, dump trucks, roll back tow trucks, flatbed trucks, or step vans, but not including vans, pickup trucks, panel trucks and automobiles.