On July 15, 2026, the comment period begins for the proposed Clean Air Act Section 111(d) negative declaration letter certifying that there are no Large Municipal Waste Combustors in the State of Arizona, as required by federal regulation. The comment period ends Aug. 14, 2026.

Clean Air Act Section 111(d) requires State Plans for controlling emissions from existing sources of certain air pollutants | Learn More >

Review Documents:

• Original Published Public Notice | View Notice > 
• Negative Declaration Letter | View Letter >  
• In person at the ADEQ Record Center | Learn How >

Public Comment Period:

• Dates: July 15, 2026 – Aug. 14, 2026

Comments may be submitted as follows:  

• By Email | Send Email >
• By Mail (Must be postmarked or received by Aug. 14, 2026):

ADEQ
Air Quality Division, Air Quality Improvement Planning
Attn: Travis Korby
1110 W. Washington St.
Phoenix, AZ  85007

• At Virtual Public Hearing | Aug. 14, 2026 | 2 p.m. | View Details >