A. 
A permit shall be obtained for any of the following:
(1) 
Storage, handling or use of Class I, Class II or Class III flammable or combustible liquids in excess of 6 1/2 gallons, except that no permit shall be required for the following:
(a) 
For the storage or use of flammable liquid in the fuel tank of a motor vehicle, aircraft, motorboat, mobile power plant, mobile heating plant or for fuel oil for oil burner service.
(2) 
For the manufacture, processing, blending or refining of flammable liquids.
(3) 
For the storage of flammable liquids in stationary tanks.
B. 
Permit fee. See Article XX.
A. 
No tank vehicle shall be left unattended on any street, highway, avenue or alley, provided that this shall not prevent a driver from the necessary absence from the truck in connection with the delivery of his load, except that during actual discharge of the liquid some responsible person shall be present at the vehicle, nor shall it prevent stops for meals during the day or night if the street is well lighted at point of parking.
B. 
Tank vehicles containing flammable liquids shall not be left unattended out-of-doors at any one point for longer than one hour, except off the streets, and at least 25 feet from any building.
C. 
Tank vehicles shall not be parked or garaged in any building other than those specifically approved for such use by the Fire Marshal.