NAC445B.580. Inspection of vehicle: Procedure for certain vehicles with model year of 1995 or older and heavy-duty vehicles with model year of 1996 or newer.

     1. Except as otherwise provided in subsection 4, the provisions of this section apply to inspections of:

     (a) All motor vehicles with a model year of 1968 to 1995, inclusive; and

     (b) With regard to motor vehicles with a model year of 1996 or newer, all heavy-duty motor vehicles.

     2. After the owner or operator of a motor vehicle subject to the provisions of this section requests an inspection, an approved inspector shall follow the sequence of prompts displayed by the exhaust gas analyzer when conducting the inspection. While the vehicle is at normal operating temperature, the inspector shall connect the exhaust gas analyzer to the vehicle following the sequence of instructions programmed into the analyzer. The probe of the analyzer must be placed in the exhaust pipe of the vehicle. With the engine speed increased to 2,500 revolutions per minute, a steady level of carbon monoxide and hydrocarbons must be recorded by the analyzer. The engine speed must be returned to idle and a steady level of carbon monoxide and hydrocarbons must be recorded. If the vehicle is equipped with dual exhaust pipes, a test must be completed on both exhaust pipes and the average level of carbon monoxide and hydrocarbons must be recorded when the engine speed is increased to 2,500 revolutions per minute and when the engine speed is returned to idle.

     3. The inspector shall visually inspect:

     (a) The exhaust system to determine whether or not there is smoke when idling and at 2,500 revolutions per minute; and

     (b) The engine to determine whether or not there are blowby gases from the crankcase when idling and at 2,500 revolutions per minute.

     4. The inspector shall:

     (a) Visually inspect:

          (1) All motor vehicles subject to the provisions of this section to determine the presence of a properly installed gas cap; and

          (2) Each motor vehicle with a model year of 1981 to 1995, inclusive, and, with regard to motor vehicles with a model year of 1996 or newer, each heavy-duty motor vehicle, to determine the presence of an exhaust gas recirculation system, catalytic converter, air injection system and fuel inlet restricter, and to determine whether that equipment appears to be operating in accordance with the specifications of the manufacturer of the vehicle; and

     (b) Enter the results of the visual inspection into the analyzer.

     5. The inspector shall complete each test and issue a vehicle inspection report indicating whether or not the vehicle passes the inspection.

     6. The inspector shall issue a vehicle inspection report indicating that the vehicle did not pass the inspection if:

     (a) The emissions from the vehicle exceed the maximum levels for carbon monoxide or hydrocarbons, or both, as prescribed in NAC 445B.596;

     (b) Smoke or blowby is visible; or

     (c) The vehicle does not meet the requirements of NAC 445B.579.

     7. If a motor vehicle subject to the provisions of this section passes all portions of an inspection but has an improper gas cap or no gas cap, the owner or operator of the motor vehicle shall obtain a gas cap which is in accordance with the specifications of the manufacturer of the vehicle. The inspector shall inspect the new gas cap and certify its presence in a manner prescribed by the Department, and sign and date the failing vehicle inspection report beneath the gas cap tamper description. Such a vehicle inspection report may be used as evidence of compliance.

     (Added to NAC by Dep’t of Motor Veh. & Pub. Safety, eff. 12-28-89; A 5-17-90; 8-19-94; 9-13-95; R079-98, 9-25-98; A by Dep’t of Motor Veh. by R178-01, 8-21-2002; R068-05, 6-1-2006, eff. 9-1-2006)