Air Quality Division: Vehicle Emissions

Vehicle Emissions Inspection Program Hotline:
(877) 692-9227

Increasing vehicle use in metropolitan Phoenix and Tucson contributes to air pollution that endangers public health. To improve air quality and reduce vehicle emissions in these areas, ADEQ administers a mandatory vehicle emissions testing and repair program known as Vehicle Emissions Inspection Program (VEIP).

VEIP emphasizes the importance of maintaining vehicle performance to lower emissions and extend the life of one of your most valuable assets - your car. VEIP uses new testing technology and customer service measures that increase the effectiveness of emissions testing and shortens the time customers spend in the testing process. The results are cleaner air, faster testing procedures and better customer service.

Reducing fees, helping customers

In 2014, ADEQ lowered vehicle emissions inspection fees by 25% for millions of Maricopa County motorists - from $27.75 to $20. The agency also now replaces faulty gas caps for free when vehicles in Maricopa and Pima counties fail the gas cap test during the emissions inspection. This has resulted in more environmental good because, in cases where the gas cap is the only reason for a failed inspection, motorists no longer need to drive off, purchase a new cap and return to the station for a retest. An estimated 75,000 customers a year will benefit from the added convenience, while millions more enjoy the benefits of cleaner skies and healthier air quality.

The Arizona Motor Vehicle Division and Service Arizona controls registration, title questions, name/address changes and notification of “emissions test required.” For questions or more information, please contact:

  • (602) 255-0072 - Phoenix
  • (520) 629-9808 - Tucson
  • (800) 251-5866 - Elsewhere in Arizona

For fleet vehicle related information, visit

Information for Owners of Affected Volkswagen and Audi Vehicles

File a Complaint/Compliment on a Vehicle Emissions issue

Types of Emissions Testing

Contact Us

The Vehicle Emissions Inspection Program (VEIP) is staffed by professionals and technicians in both Phoenix and Tucson. Throughout these pages, contact information is provided for people who can respond to your specific informational needs. If you have a question which was not answered here, or need additional information, please call the VEIP Hotline, one of our offices, or one of the contact persons listed below.

VEIP CUSTOMER SERVICE - 1110 W. Washington St., Phoenix, AZ 85007 (602) 771-3950
VEIT CUSTOMER SERVICE - 4040 E. 29th St., Tucson, AZ 85711 (520) 628-5651
Vehicle Aftermarket and Retrofit Devices Rex Martin (602) 771-3967
Alternate Fuel Certification - Phoenix Rex Martin
Tony Godoy
(602) 771-3967
(602) 771-3972
Alternate Fuel Certification - Tucson John Bertics (520) 628-5885
Exemptions - Phoenix
Fleet and Dealer - Phoenix Tony Godoy (602) 771-3972
Fleet and Dealer - Tucson Mark Pilgrim 520-628-5395
Inspection Stations - Wait Times
Inspection Stations - Hours and Locations
VEIP Hotline (877) 692-9227

See Also:

Back to the top of the page

When You Pass the Test

Once your vehicle passes the emissions test, you may go to any of the Motor Vehicle Division (MVD) registration offices to register or re-register. To find an office near you, visit the MVD website . You may also register conveniently online .

Report a Smoking Vehicle

Vehicles that emit excessive smoke are a contributor to poor air quality and smog. To promote clean air Maricopa County operates a smoking vehicle notification program. This educational program is designed to improve air quality by increasing the understanding of the relationship between the quality of vehicle maintenance and air pollution.

To report vehicles you believe to be smoking excessively, please contact:

Maricopa County Air Quality Department - (602) 372-2703