Governing Law and Regulations
Arizona Department of Environmental Quality (ADEQ) Air Quality Division
Maricopa County Air Quality Department
Pima County Department of Environmental Quality
Pinal County Air Quality Control District
U.S. Environmental Protection Agency (EPA) Region 9
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Arizona's air emissions permitting program is a unitary permit program where a single permit is issued for construction, operation, or modification of both major and minor sources. New major sources or modifications to existing major sources must comply with the applicable provisions of nonattainment New Source Review (NSR) and/or Prevention of ...