Arizona emissions testing rules

Testing is required in the Phoenix and Tucson metropolitan areas.

“In Arizona, testing is required in the Phoenix and Tucson metropolitan areas, where ozone and particulate matter pollution are a problem.”

Vehicles from model year 1967 or later are tested, including vehicles with mobility modifications.

“In Arizona, all vehicles model 1967 or later are required to undergo emissions testing.”

Newer vehicles get an On-Board Diagnostic test: the inspector connects to the data link connector and checks the check engine light.

“While you are waiting the inspector performs the On-Board Diagnostic (OBD) test”

Vehicles registered outside Area A and Area B (metro Phoenix and Tucson) do not need an Arizona emissions inspection; ADEQ offers a ZIP code look-up.

“Vehicles registered outside area A & B (metropolitan Phoenix and Tucson) are not required to have an Arizona vehicle emissions inspection.”

A vehicle out of state for at least 90 days before the registration expires can get an out-of-state exemption, or a test where it is.

“To qualify, your vehicle must be out of the state for at least 90 days prior to your registration expiring.”

A passing test is required before you can register a vehicle in the Phoenix and Tucson areas; the renewal notice says whether a test is due this year.

“A vehicle emissions test is a requirement for the Phoenix and Tucson areas in order to apply for a vehicle registration.”