420.01   COMMERCIAL VEHICLES IN RESIDENTIAL AREAS.
   (a)   Commercial Vehicle Defined.  As used in this section, "commercial vehicle" means every motor vehicle which is used for the transportation of passengers for hire or which is constructed or used for the transportation of goods, wares, or merchandise. The term also means a motor vehicle which is designed and used for drawing other vehicles.
   (b)   Parking Restrictions.  No person shall park, nor shall a vehicle's registered owner permit to be parked, any commercial vehicle weighing in excess of 7,500 pounds on any street in any residential area in the City, or on any residentially zoned property in the City, for any purpose or length of time other than for the expeditious unloading and delivery or pickup and loading of materials, goods, or merchandise, or for the purpose of carrying on a principal use permitted on the property on which the vehicle is parked as provided in the Zoning Code. The owner of residentially zoned property shall not permit a commercial vehicle to remain on such property in violation of this section.
   (c)   Vehicles With Flammable, Pressurized Hazardous Materials.  No person shall park, nor shall a vehicle's registered owner permit to be parked, any commercial vehicle in any residential area in the City or on any residentially zoned property in the City for any purpose if it contains flammable or pressurized tanks, containers or cylinders as well as hazardous materials other than for the expeditious loading or unloading and delivery or pickup of such materials.
   (d)   Prima Facie Presumptions.  In any proceeding for a violation of this section, where a motor vehicle displays commercial license registration plates, such registration shall constitute a prima facie presumption that it is a commercial vehicle at the time of any alleged violation. In any proceeding for a violation of the weight limitation provision of this section, the weight indicated on the vehicle's registration shall constitute a prima facie presumption of the weight of the vehicle at the time of any alleged violation.
(Ord. 1.  Passed 4-16-90.)