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 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