Air Quality Department

For more air quality information, please visit

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  1. Air Quality Department


    Physical Address
    3800 N Central Ave, Suite 1400
    Phoenix, AZ 85012

    Phone: 602-506-6010
    Fax: 602-372-0587

  2. Permit Intake Locations & Parking Map


The Library

The Library

A collection of all of our applications, forms, handbooks, reports, rules, and other documents

Resources for the Regulated Community

Maricopa County Resources for the Regulated Community

The most frequently-used pages and documents for the regulated community

Get Involved


Get Involved

Tools for the public to help you be informed about and get involved in your air quality

  1. 'Commit to One Day, Help Keep Ozone Away' Campaign Kicks Off

    Posted to Air Quality on April 16, 2019

    Maricopa County Air Quality Department is asking everyone to make a commitment at least one day a week to help fight ground-level ozone. Read on...
  2. Mowing Down Pollution

    Posted to Air Quality on March 19, 2019

    Maricopa County Air Quality Department is relaunching the Mowing Down Pollution program. Read on...
  3. Funding Available through FY19 DERA State Clean Diesel Grant Program

    Posted to Air Quality on March 5, 2019

    Maricopa County Air Quality Department is administering the EPA's Diesel Emission Reduction Act (DERA) State Clean Diesel Program grant. Read on...
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  1. Training
  2. Department Events

April 2019

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