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AirPermitHub

AK · EPA Region 10

Alaska Air Permits

Alaska DEC's Air Permit Program issues construction permits (major sources), minor source specific permits, general permits for common source types, Owner Requested Limits (ORL), Pre-Approved Emission Limits (PAEL), and Title V operating permits under 18 AAC 50 and AS 46.14.
Verified against agency sourceLast reviewed 2026-10-25

Air permits & authorizations

  • Minor Source Specific (MSS) Permits

    Minor NSR

    Minor permits for sources that do not need a construction permit, including drilling rigs.

    18 AAC 50Official page

  • General Permits

    General Permit

    GPA (fuel-limited diesel electric plants, renewals only), MG1 (oil and gas drill rigs), MG3 (smaller asphalt plants), MG9 (smaller rock crushers), GP3 (larger asphalt plants).

    Thresholds (summarized from source, not a quotation)

    MG3 and MG9: under 100 tpy; GP3: over 100 tpy (restated from ADEC).

    18 AAC 50Official page

  • Owner Requested Limit (ORL)

    Other

    An enforceable limit on potential to emit to avoid permitting obligations.

    18 AAC 50.225Official page

  • Pre-Approved Emission Limits (PAEL)

    Other

    PAEL1 for gasoline distribution bulk storage and PAEL2 for diesel generator facilities.

    18 AAC 50Official page

  • Open Burn Approval

    Other

    Required for certain open burning not covered by exemptions.

    Official page

Major NSR (PSD & nonattainment)

  • Construction Permits

    PSD

    Required for new major sources and major modifications.

    Thresholds (summarized from source, not a quotation)

    Per DEC: 100 tpy of any regulated pollutant for the 28 facility types listed at 40 CFR 52.21(b)(1)(i)(a); 250 tpy for other facilities.

    18 AAC 50; thresholds tied to 40 CFR 52.21(b)(1)(i)(a)Official page

Title V operating permits

  • Operating Permits (Title V)

    Title V

    Federal operating permit program run by DEC.

    Thresholds (summarized from source, not a quotation)

    Per DEC: potential to emit 10 tpy or more of any single HAP, 25 tpy or more of combined HAPs, or more than 100 tpy of other criteria pollutants.

    18 AAC 50Official page

Oil & Gas

Oil and gas drill rigs can use the MG1 general permit or a Minor Source Specific permit. DEC defines Portable Oil and Gas Operations as operations that move between sites to drill or test wells.

  • MG1: Oil and Gas Drill Rigs General Permit

    General Permit

    General permit for portable oil and gas drill rigs.

    Official page

  • Minor Source Specific permit (drilling rigs)

    Minor NSR

    Alternative to MG1 for drilling operations.

    Official page
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

Editorial note: Outer Continental Shelf sources off Alaska are permitted by EPA Region 10 (not verified on DEC pages).

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