Minnesota Air Permits

Air permits & authorizations

• Insignificant facilities and conditionally exempt sources

  Exemption

  Insignificant facilities may not need a permit (MPCA offers a PTE calculator). Conditionally exempt sources (e.g., auto body, coating, woodworking, gasoline stations, concrete manufacturers) may exceed thresholds but follow technical standards and usually notify MPCA instead of getting a permit.

  Minn. R. ch. 7008Official page

• Registration Permits (incl. Option D)

  Registration / Notice

  One-page, non-expiring state permits for facilities whose actual emissions are low compared to potential. Not available to acid rain sources, waste combustors, or facilities with SIP requirements or certain NSPS.

  Thresholds (summarized from source, not a quotation)

  Per MPCA (Option D, actual emissions): under 50 tpy each of PM, PM10, VOC, SO2, NOx, CO; under 5 tpy single HAP; under 12.5 tpy all HAPs; under 0.5 tpy lead; under 50,000 tpy CO2e.

  Minn. R. ch. 7007Official page

• Capped Emission Permit

  State Operating

  Caps facility-wide emissions to stay below Part 70 or NSR major thresholds; changes allowed without amendment while under the cap. Single-page permit.

  Thresholds (summarized from source, not a quotation)

  Per MPCA: actual emissions under 75%-90% of federal thresholds (e.g., Option 1 under 90 tpy listed pollutants including insignificant activities).

  Minn. R. ch. 7007Official page

• State General Permit

  General Permit

  One state general permit is currently available, for non-metallic mineral processing.

  Official page

• Individual State Total Facility Permit

  Minor NSR

  Facility-specific permit with limits to remain minor for NSR and Part 70; 30-day public notice; five-year term; amendments required for changes.

  Minn. R. 7007.1000Official page

Major NSR (PSD & nonattainment)

• PSD / NSR

  PSD

  Major NSR applies depending on source category; individual Part 70 permits often include limits to remain minor for NSR.

  Thresholds (summarized from source, not a quotation)

  100 or 250 tpy depending on source category (restated from MPCA).

  Official page

Title V operating permits

• Part 70 Individual and General Permits

  Title V

  Individual permits for the largest facilities (30-day public comment, 45-day EPA review, five-year renewal). A Part 70 general permit covers manufacturing facilities.

  Official page

Oil & Gas

Minnesota has no oil and gas production. MPCA's permit pages list no oil-and-gas-specific air program; stationary engine guidance applies to compressor and generator engines.

State air regulations

• Minn. R. ch. 7007Air Emission Permits
• Minn. R. ch. 7008Conditionally Exempt Stationary Sources

Forms

• Air permits (forms and applications)
• CH-16 Applicability Determination Request
• Insignificant facility PTE calculator

Guidance

• Do I need an air permit?
• Comparison of Air Permit Flexibility Options
• Option D Registration Permit fact sheet
• Air emissions calculators

Compliance

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

Sources

• MPCA Air permit types
• MPCA Do I need an air permit?
• MPCA Comparison of Air Permit Flexibility Options

Editorial note: Registration Options A-C and numeric permitting thresholds (Minn. R. 7007.0250/0300) were not stated on the pages reviewed.