1. 1. It is unlawful for any person to operate any bus, truck, truck-tractor and trailer combination, or other commercial motor vehicle and trailer upon any highway of this state, whether intrastate transportation or interstate transportation, transporting materials defined and classified as hazardous by the United States Department of Transportation pursuant to Title 49 of the Code of Federal Regulations, as such regulations have been and may periodically be amended, unless such vehicle is equipped with the equipment required by and be operated in accordance with safety and hazardous materials regulations for such vehicles as adopted by the United States Department of Transportation.
2. 2. Notwithstanding the provisions of subsection 1 of this section to the contrary, Part 391, Subpart E, Title 49, Code of Federal Regulations, relating to the physical requirements of drivers shall not be applicable to drivers in intrastate commerce, provided such drivers were licensed by this state as chauffeurs to operate commercial motor vehicles on May 13, 1988.
3. 3. Failure to comply with the requirements of this section may result in the commercial motor vehicle and trailer and driver of such vehicle and trailer being placed out of service. Criteria used for placing drivers and vehicles out of service are the North American Uniform Out-of-Service Criteria adopted by the Commercial Vehicle Safety Alliance and the United States Department of Transportation, as such criteria have been and may periodically be amended.
4. 4. Violation of this section shall be deemed a class A misdemeanor.

(L. 1983 H.B. 539 § 307.171, A.L. 1988 S.B. 423, A.L. 1991 H.B. 251, A.L. 2002 S.B. 712)