Asbestos/National Emission Standards for Hazardous Air Pollutants (NESHAP)

The Maricopa County Air Quality Department regulates all asbestos renovation and demolition within Maricopa County.

That covers all demolitions and regulated renovation activities containing friable asbestos-containing material greater than or equal to 160 square feet, 260 linear feet, or 35 cubic feet.

This is determined by an Asbestos Hazard Emergency Response Act (AHERA) certified asbestos building inspector prior to demolition or renovation.


Regulations governing this program:
  • 40 CFR Part 61, subpart M - National Emission Standards for Hazardous Air Pollutants (NESHAP)
  • Maricopa County air pollution control regulations
    • National Emission Standard for Asbestos
    • Regulation III
    • Rule 370, section 301.9 - subpart M
For guidelines, instructions, regulations, and definitions, view the Asbestos NESHAP Brochure (PDF).

Courtesy Visits

Air Quality offers courtesy visits to further assist with program administration. To schedule a courtesy visit, contact the Business Assistance Office, the Asbestos Program Coordinator, or the Asbestos Notification Tech.


Contact Phone Email
Business Assistance Office
Asbestos/NESHAP Coordinator
Asbestos Notification Tech


Please contact our Air Quality techs with all of your Asbestos-related questions, by email at


To register complaints regarding asbestos or other air quality violations, please contact our office at 602-372-2703 or by completing our Air Quality Violation Report Form.

Last Reviewed 01 April 2019