License Minnesota

Air -Part 70 Fiberglass General Permit

Minnesota Pollution Control Agency (MPCA)

Agency contact information:

Pollution Control Agency (MPCA), Minnesota
520 Lafayette Rd. N.
St. Paul, MN 55155
(651) 296-6300 or (800) 657-3864
Business Environmental Assistance Program
(651) 282-6143 | (800) 657-3938


Minnesota Pollution Control Agency  

MPCA Online Services

The Minnesota Pollution Control Agency is responsible for administering environmental permitting, compliance/enforcement, remediation and outreach programs to help Minnesota protect its environment.


Minn. Stats. 116.07


MINNESOTA RULES 7002., 7005., 7007., 7008., 7011., 7019.


Application forms are available on the MPCA website, Air, Permits and rules, Air permitting section at Permit application forms.

Fact Sheets are available on the MPCA website, Air, Permits and rules, Air permitting section at Air quality fact sheets.


Minn. Rules 7007.0200 and 7007.0250 specify the facilities requiring an air emissions permit. Construction of a new source meeting those specifications must receive an air emissions permit prior to commencement of construction. In some cases, Environmental Review (Minn. Rules 4410) and/or Air Emission Risk Analysis (AREA) is required before a permit can be issued. Facility needs to determine if a permit is required, based on potential emissions, and type of facility described in Minn. Rules 7007.0200 and 7007.0250, and apply for the appropriate type.


There is a one-time application fee assessed when a facility applies for a Fiberglass General Permit.

A fee is also assessed for an administrative change; for example, change in ownership or name change.

A newly permitted facility is also assessed an initial emission fee based on the estimated actual emissions of "chargeable pollutants" (nitrogen oxides, volatile organic compounds, particulate matter smaller than 10 microns, sulfur dioxide, lead, and any other pollutant for which a national ambient air quality standard is promulgated, except carbon monoxide), as stated in the permit application. Thereafter, fees are assessed annually based on a facility's actual emissions of the chargeable pollutants, as reported in an annual emissions inventory.

Air emission-based fees are charged on a "dollar per ton of emissions" basis. The fees are calculated annually based on various factors. For more information on how air emission-based fees are calculated, go to Minnesota Criteria Pollutant Emission Inventory - Fees.

Period of Issuance:

The Fiberglass General Permit is a Part 70 permit, and therefore expires every 5 years.

Length of Determination Process:

It is recommended that an application for an air emission permit for any new facility be filed at least 180 days before the planned commencement of construction. General Permits do not require a public notice period prior to issuance, but may require Environmental Review, which does include a public notice period.

Other Pertinent Information:

The Fiberglass General Permit is for facilities with only the following;activities: spray guns, spraying and coating booths, molding, casting, lamination, mixing, cleaning, resin and gel coat, adhesive, fuel storage, boilers, catalytic or thermal afterburner, fabric filters, flares, bag houses, internal combustion engine (generators), burn-off ovens, dip tanks, soldering, welding, brazing, space heaters, storage tanks, screen printing, sanding, stenciling and/or any of the insignificant activities listed in Minn. Rules 7007.1300 and/or conditionally insignificant activities listed in Minn. Rules 7008. There are also General Permits for sand and gravel operations and manufacturing operations. Some facilities who qualify for the Fiberglass General Permit may also qualify for a Registration Permit or a Capped Permit. Those facilities who do not qualify for either a Registration Permit, a General Permit, or Capped Permit or who prefer not to accept the restrictions of the Registration Permit, General Permit, or Capped Permit must obtain an Individual Part 70 Operating Permit or State Operating Permit. Only one Air Emissions Permit is required for a facility; it covers construction and operation. The type depends on the individual facility.