Prevention Of Significant Deterioration (PSD) delegation agreements allow state agencies to issue PSD permits on EPA's behalf. The permit issued is a federal permits under 40 CFR 52.21.
Maricopa County AQD PSD Delegation Agreement (PDF)(9 pp, 361 K,
February 8, 2016)
Agreement for Delegation of the Federal Prevention of Significant Deterioration (PSD) Program Set Forth In 40 CFR 52.21 by the United States Environmental Protection Agency, Region 9 to the Maricopa County Air Quality Department.