A: All residents of the greater Phoenix and Tucson areas and those who regularly commute into the areas for work or school are required to have their 1967 or newer vehicles pass an emissions test. Most vehicles newer than 6 years old are exempt from testing, and certain other vehicle exemptions apply (see Exemptions).

If your vehicle fails the emission test, you need to have an AZ emission repair service address the problem. If you have your vehicle tested again within 60 days of the initial DMV smog test, you won’t be charged for the re-test.