Air Quality Division: Vehicle Emissions: What Vehicles Need to be Tested?

Unless specifically exempted, all 1967 and newer vehicles (including diesels) that are registered in the metro Phoenix (Area A) or Tucson (Area B) emission test areas must receive an emissions inspection no more than 90 days prior to registration.

Your registration renewal application from the Motor Vehicles Division will say "Emission Test Required" when it is time to have your vehicle tested. If your vehicle has not previously required an emission test, to determine if testing is required or if you have questions about requirements for your vehicle, please contact:

(602) 771-3950
www.myAZcar.com Leaving ADEQ Web site

If you work in the emission test area, but are registered outside of the area, Arizona law requires that you have the vehicle inspected in the area to which you commute. Note: On-Board Diagnostics (OBD) tests conducted in Pima County are valid for registration in Maricopa County. All other tests performed in Pima County are valid for Pima County registration only.

Beginning Jan. 2, 2009, the On-Board Diagnostics test in Pima County will be valid for a period of two years. The vehicles subject to this test in Pima County have been divided by MVD so that approximately half of the vehicles will be tested in 2009 and the other half in 2010. Once tested, testing will not be required for two years. MVD will issue registration renewal notices showing the first year testing is required under this change. Look for "Emissions Testing Required" on your renewal.

Automobile dealers are responsible for having vehicles emissions tested prior to sale. You will be notified by Motor Vehicle Division when you need to re-register your vehicle and if it is due for emissions testing.

Vehicles to be tested must enter the inspection station under their own power. They may not be on or pulling a trailer.

Exempted Vehicles

  • Model year 2006 or newer, except reconstructed, vehicles
  • Model year 2008 or newer original equipment alternative fuel vehicles
  • Model year 1966 and older vehicles
  • Vehicles designated as "collectible" (requires collectible vehicle insurance, reported to Arizona Motor Vehicle Division by insurer)
  • Electric powered, golf carts or vehicles with engine displacement of less than 90cc
  • Motorcycles registered in the Tucson metropolitan area
  • Apportioned vehicles (licensed in more than one state)
  • Vehicles leased to a person residing outside the emission control areas
  • Vehicles transferred between dealers (wholesale)

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