Emissions Testing

The Arizona Department of Environmental Quality is responsible for the emissions testing program and laws. For additional information, visit myAZcar.com

Testing is required in the Phoenix and Tucson metropolitan areas, including if you commute into these areas. Requirements may vary depending on the vehicle type, model year, fuel type, and vehicle weight. 

To save time, if you need an emissions test, complete it before you visit an MVD office. 

Does My Vehicle Need Emissions Testing?

View Emissions Testing Areas Map

If your vehicle is in one of the emissions areas, you probably need an emissions test, unless your vehicle is:

• Five years old or less
• 1966 model year or older
• An electric vehicle  

If You Need Emissions Testing - Next Steps:

Arizona Emissions Testing Locations

Find a Location

• For renewals, vehicles should be tested no sooner than 90 days before the registration expires.
• Emissions test results are sent electronically to MVD.

Before You Go to a Testing Facility

Prepare for the Test

• Vehicles CANNOT PASS emissions testing when the “Check Engine” light is on.
• You should test with at least ½ a tank of fresh fuel.
• If your vehicle will be out of state for an extended period of time, you may qualify for an exemption.

Arizona Vehicle Emissions History

View previous Arizona emissions results.