1. In any county whose population is 100,000 or more, the Commission shall, in cooperation with the Department of Motor Vehicles and any local air pollution control agency, adopt regulations for the control of emissions from motor vehicles in areas of the county designated by the Commission.

2. In any county whose population is less than 100,000, if the Commission determines that it is feasible and practicable to carry out a program of inspecting and testing motor vehicles and systems for the control of emissions from motor vehicles, and if carrying out the program is deemed necessary to achieve or maintain the prescribed standards for the quality of ambient air in areas of the State designated by the Commission, the Commission shall, in cooperation with the Department of Motor Vehicles and any local air pollution control agency established under NRS 445B.500 which has jurisdiction in a designated area, adopt regulations and transportation controls as may be necessary to carry out the program.

3. The regulations must distinguish between light-duty and heavy-duty motor vehicles and may prescribe:

(a) Appropriate criteria and procedures for the approval, installation and use of devices for the control of emissions from motor vehicles; and

(b) Requirements for the proper maintenance of such devices and motor vehicles.

4. The regulations must establish:

(a) Requirements by which the Department of Motor Vehicles shall license authorized stations to inspect, repair, adjust and install devices for the control of emissions for motor vehicles, including criteria by which any person may become qualified to inspect, repair, adjust and install those devices.

(b) Requirements by which the Department of Motor Vehicles may license an owner or lessee of a fleet of three or more vehicles as a fleet station if the owner or lessee complies with the regulations of the Commission. The fleet station shall only certify vehicles which constitute that fleet.

(c) Requirements by which the Department of Motor Vehicles provides for inspections of motor vehicles owned by this State and any of its political subdivisions.

5. The Commission shall consider, before adopting any regulation or establishing any criteria pursuant to paragraph (a) of subsection 3:

(a) The availability of devices adaptable to specific makes, models and years of motor vehicles.

(b) The effectiveness of those devices for reducing the emission of each type of air pollutant under conditions in this State.

(c) The capability of those devices for reducing any particular type or types of pollutants without significantly increasing the emission of any other type or types of pollutant.

(d) The capacity of any manufacturer to produce and distribute the particular device in such quantities and at such times as will meet the estimated needs in Nevada.

(e) The reasonableness of the retail cost of the device and the cost of its installation and maintenance over the life of the device and the motor vehicle.

(f) The ease of determining whether any such installed device is functioning properly.

(Added to NRS by 1973, 1703; A 1977, 920; 1979, 547; 1981, 1047; 1985, 1992; 2001, 2618)