The following words, terms and phrases, when used in this article, shall have the meanings ascribed to them in this section, except where the context clearly indicates a different meaning:
CARGO TANK
Any container having a liquid capacity in excess of 100 gallons, used for the carrying of flammable or combustible liquids or asphalt and mounted permanently or otherwise upon a tank vehicle. The term "cargo tank" does not apply to any container used solely for the purpose of supplying fuel for the propulsion of the tank vehicle upon which it is mounted.
LIQUID
See § 198-43.
TANK VEHICLE
Any vehicle other than railroad tank cars and boats, with a cargo tank mounted thereon or built as an integral part thereof used for the transportation of flammable or combustible liquids. Tank vehicles include self-propelled vehicles, and full trailers and semitrailers without motive power and with wheels carrying either part or all of the load.
This article shall apply to tank motor vehicles to be used for the transportation of asphalt or normally stable flammable and combustible liquids with a flash point below 200º F.
No person shall engage in the business of delivering flammable or combustible liquids from tank vehicles without a permit.
A. 
The material used in the construction of the cargo tanks shall be compatible with the chemical characteristics of the flammable or combustible liquid to be transported.
B. 
Any tank vehicle designed or used for transporting materials at liquid temperatures above ambient temperature shall have a red warning sign permanently attached to the vehicle containing at least the following: "Maximum allowable cargo temperature is __________º F." This maximum allowable cargo temperature shall be specified by the manufacturer of the vehicle.
A. 
Cargo tanks and the vehicle chassis shall be electrically bonded.
B. 
Provision shall be made in the tank structure of the vehicle for the bonding of the vehicle to the fill pipe during truck loading operations.
A. 
Draw-off valves or faucets projecting beyond the frame at the rear of a tank vehicle shall be adequately protected against collision by bumpers or similar means.
B. 
On tank vehicles constructed hereafter, all closures for filling openings shall be protected from damage in the event of overturning of the tank vehicle by being enclosed within the body of the tank, or a dome attached thereto, or by the use of suitable metal guards securely attached to the tank or the frame of the tank vehicle.
Every tank vehicle used for the transportation of any flammable liquid, regardless of the quantity being transported, or whether loaded or empty, shall be conspicuously and legibly marked on each side and the rear thereof, in letters at least three inches high on a background of sharply contrasting color, optionally as follows:
A. 
With a sign or lettering on the motor vehicle with the word "flammable;" or
B. 
With the common name of the flammable liquid being transported.
A. 
Each tank vehicle shall be provided with at least one portable fire extinguisher having at least a 12-B, C rating or when more than one is provided, each extinguisher shall have at least a six-B rating.
B. 
Fire extinguishers shall be kept in good operating condition at all times, and they shall be located in an accessible place on each tank vehicle.
A. 
Smoking by tank vehicle drivers, helpers, repairmen or other personnel is prohibited while they are driving, making deliveries, filling or making any repairs to tank vehicles.
B. 
Open flames shall not be used near manholes or vents.
A. 
Except in an emergency, 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 the point of parking.
B. 
Tank vehicles containing flammable or combustible liquids shall not be parked out of doors at any one point for longer than one hour, except off the streets, and at least 25 feet from any building used for assembly, institutional or residential occupancy.
C. 
Tank vehicles shall not be parked or garaged in any building other than those specifically approved for such use by the Chief of the Fire Department.