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AirPermitHub

AZ · EPA Region 9

Arizona Air Permits

ADEQ issues Class I (major/Title V) and Class II individual permits, general permits, and registrations everywhere except Maricopa, Pima, and Pinal counties, which run their own permitting, inspection, and enforcement programs. EPA Region 9 permits on most tribal lands.
Verified against agency sourceLast reviewed 2026-10-25

Air permits & authorizations

  • Air Quality Registration

    Registration / Notice

    Registration application for qualifying smaller sources.

  • General Permits

    General Permit

    Pre-approved permits for classes of similar sources; an Authorization to Operate is issued for each major piece of equipment. ADEQ general permits include air curtain incinerators, concrete batch plants, crushing and screening, hospitals, hot mix asphalt, soil vapor extraction, and dust action.

  • Class II Individual Permit

    Minor NSR

    For sources that do not qualify for Class I but meet A.A.C. R18-2-302(B)(2), including sources with potential to emit significant quantities and sources subject to CAA sections 111 or 112 (with listed exceptions). Valid five years.

    A.A.C. Title 18, Ch. 2, R18-2-302(B)(2)Official page

Major NSR (PSD & nonattainment)

  • PSD permit

    PSD

    Required before construction of new major sources and major modifications in attainment areas.

  • Nonattainment NSR permit

    Nonattainment NSR

    Required before construction of new major sources and major modifications in nonattainment areas.

Title V operating permits

  • Class I Individual Permit (Title V)

    Title V

    Major sources; Arizona's Title V program is EPA-approved. Valid five years.

    Thresholds (summarized from source, not a quotation)

    Per ADEQ: 100 tons/year or more of any criteria pollutant, 10 tons/year or more of any single HAP, or 25 tons/year or more of combined HAPs.

    A.A.C. R18-2-302(B)(1); major source definition R18-2-101Official page

Oil & Gas

ADEQ's air permitting pages reviewed list no oil-and-gas-specific air permit or rule. Oil and gas sources use Class I/II individual permits; federal NSPS and NESHAP apply.

    Oil & Gas industry hub

    State air regulations

    Forms

    Guidance

    Compliance

    State compliance obligations (reporting, emissions inventory, testing) are being indexed. Use the Compliance dashboard preview to see how they will be tracked.

    Sources

    AirPermitHub provides educational, engineering, research, and compliance-support information. Information provided by the platform does not constitute legal advice and should not replace review of applicable regulations, permits, agency guidance, or consultation with qualified professionals. Full disclaimer