1. The Commission shall, by regulation, establish a program for the regulation of smoke and other emissions by inspection of heavy-duty motor vehicles that are powered by diesel fuel or motor vehicle fuel.
2. The Commission shall adopt regulations concerning:
(a) The equipment used to measure smoke and other emissions of heavy-duty motor vehicles.
(b) The granting of a waiver if compliance involves repair and equipment costs which exceed the limits established by the Commission. The Commission shall establish the limits in a manner which avoids unnecessary financial hardship to owners of heavy-duty motor vehicles.
3. As used in this section, “heavy-duty motor vehicle” means a motor vehicle that has a manufacturer’s gross vehicle weight rating of 14,001 pounds or more. The term does not include a passenger car.