For the purpose of this article, the following terms are defined:
Dallas-Fort Worth metropolitan area.
Any location within Dallas County or Tarrant County, Texas.
Hazardous materials.
Any quantity, group, form or class of material in any official publication of the Secretary of Transportation of the United States under the authority of U.S.C.A. section 1803 (1976), as amended, including any such publication issued after the effective date of this article.
Requiring placards.
The material to be transported is hazardous and is in sufficient quantity to require placarding in accordance with Department of Transportation hazardous materials regulations (49 U.S.C.A. section 1801 et seq. (1976)).
Transport.
To move any motor vehicle requiring placards upon any public thoroughfare or highway.
(2002 Code, sec. 12.2201)
No person shall knowingly transport hazardous materials or knowingly cause hazardous materials to be transported upon any public street within the corporate limits of the city, except on the following:
(1) 
That portion of Interstate Highway 35E and Interstate Highway 635 lying within the corporate limits of the city.
(2) 
That portion of any federal or state highway or public thoroughfare used to reach a destination or point of departure by the most direct route within corporate limits of the city.
(3) 
That portion of any federal or state highway or public thoroughfare within the corporate limits of the city used to reach a destination or point of departure by the most direct route within the Dallas-Fort Worth Metropolitan Area.
(2002 Code, sec. 12.2202)
The operator of a vehicle used to transport hazardous materials requiring placards shall not operate said vehicle unless:
(1) 
Appropriate placards meeting U.S. Department of Transportation specifications are displayed as required by 49 CFR part 172; and
(2) 
Before operation, the operator shall inspect the vehicle and determine that:
(A) 
The brakes are in good working condition;
(B) 
The steering mechanism is in good working condition;
(C) 
The electrical wiring is well insulated and firmly secured;
(D) 
The required lights are operative;
(E) 
The vehicle is in a safe condition to transport hazardous materials; and
(F) 
All emergency features on bulk transport carriers are installed and operative as outlined in U.S. Department of Transportation specifications and requirements.
(2002 Code, sec. 12.2203)
Both the city fire department and the city police department are expressly authorized to enforce the provisions of this article.
(2002 Code, sec. 12.2205)