Emissions Testing by County in Arizona

Arizona mandates vehicle emissions testing in specific counties to improve air quality and comply with federal standards. Understanding these requirements is essential for vehicle owners to ensure compliance and avoid penalties.

Counties Requiring Emissions Testing

Emissions testing is primarily required in two designated non-attainment areas due to air quality concerns:

Area A: Greater Phoenix Metropolitan Area

Counties Involved: Parts of Maricopa, Pinal, and Yavapai counties.
Requirements: Vehicles registered in Area A that are more than five years old (by manufacture date) require an emissions test. This includes vehicles that are used to commute into Area A, even if they are registered outside of it. :contentReference[oaicite:0]{index=0}

Area B: Tucson Metropolitan Area

County Involved: Pima County.
Requirements: Similar to Area A, vehicles registered in Area B that are more than five years old require emissions testing. Commuters into Area B must also comply. :contentReference[oaicite:1]{index=1}

Counties Exempt from Emissions Testing

All other counties in Arizona comply with EPA standards and do not require emissions testing, unless the vehicle is used to commute to work within the Metro Phoenix or Metro Tucson areas. :contentReference[oaicite:2]{index=2}

Vehicle Exemptions

Certain vehicles are exempt from emissions testing:

Newer Vehicles: Vehicles that are five years old or less.
Older Models: Vehicles manufactured in 1966 or earlier.
Electric Vehicles: Fully electric vehicles.
Motorcycles: Generally exempt.
Collectible Vehicles: With appropriate insurance and designation. :contentReference[oaicite:3]{index=3}

Testing Frequency

Phoenix Area (Area A):
- Light-duty gasoline vehicles (1981 and newer): Every two years.
- Diesel vehicles and older models: Annually.
Tucson Area (Area B):
- Most vehicles: Annually. :contentReference[oaicite:4]{index=4}

Commuter Requirements

Vehicles registered outside of Areas A and B but used to commute into these areas for work are required to undergo emissions testing. This ensures that all vehicles contributing to the area's air quality meet the necessary standards. :contentReference[oaicite:5]{index=5}

Testing Locations and Wait Times

For a list of emissions testing locations and current wait times in the Phoenix and Tucson areas, visit myAZcar.com.

Additional Resources

For more information on Arizona driving regulations, you may find these resources helpful:

Counties Requiring Emissions Testing

Emissions testing is primarily required in two designated non-attainment areas due to air quality concerns:

Area A: Greater Phoenix Metropolitan Area

Counties Involved: Parts of Maricopa, Pinal, and Yavapai counties.

Requirements: Vehicles registered in Area A that are more than five years old (by manufacture date) require an emissions test. This includes vehicles that are used to commute into Area A, even if they are registered outside of it. :contentReference[oaicite:0]{index=0}

Area B: Tucson Metropolitan Area

County Involved: Pima County.

Requirements: Similar to Area A, vehicles registered in Area B that are more than five years old require emissions testing. Commuters into Area B must also comply. :contentReference[oaicite:1]{index=1}

Vehicle Exemptions

Certain vehicles are exempt from emissions testing:

Newer Vehicles: Vehicles that are five years old or less.

Older Models: Vehicles manufactured in 1966 or earlier.

Electric Vehicles: Fully electric vehicles.

Motorcycles: Generally exempt.

Collectible Vehicles: With appropriate insurance and designation. :contentReference[oaicite:3]{index=3}