On Friday, April 26, 2019, the public comment period begins for the proposed rulemaking for the addition of a significant emission rate for ammonia, as a revision to the Arizona State Implementation Plan (SIP). The comment period ends on May 28, 2019.
Comments may be submitted as follows:
By Email | Send Email >
By Mail: (Must be postmarked or received by May 28, 2019)
Air Quality Division, Air Quality Improvement Planning Section
1110 W. Washington St.
Phoenix, AZ 85007
In Person | At Public Hearing | Learn More >