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New In Town

New in Town? All Passenger Cars, Trucks, RVs and Motor Homes based in urban areas of Clark & Washoe County requires an emissions test.

Vehicles Requiring a Test:
Gasoline powered (regardless of weight or size) Diesel powered with a manufacturer's gross vehicle weight rating up to and including 14,000 pounds; and1968 model year or newer.

New vehicles on their third registration. First and second registrations are exempted. Hybrids are exempt for five model years.

Here is how a smog test is performed here in the greater Las Vegas area:
Nevada uses On-Board Diagnostics (OBDII) testing for 1996 and newer light-duty gas vehicles.

The inspector will connect an analyzer to the OBD computer in your vehicle and read the data from the emission control systems.
A technician will visually check the following items on light duty gas powered vehicles older than 1996 and all 1968 and later model heavy duty gas powered vehicles:
  • Gas Cap Air intake system
  • Exhaust gas recirculation
  • System Catalytic converter
  • Fuel inlet restrictor

Diesel tests are run on a dynamometer using an opacity meter to read visible particulate emissions.
You may also find more information at the Nevada DMV website