Air Permits

Air Permits

Owners or operators of industrial sources that emit pollutants to the atmosphere need to get an air permit. A permit protects public health and the environment by requiring that owners or operators comply with all applicable state and federal air regulations. The DNR provides assistance to businesses, industry and the public to help better understand air permits, including when a permit is needed, the review process, applicable regulations, air quality modeling requirements and how to apply for a permit.

Apply for an Air Permit

Learn how to apply for an air permit.
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Data Map

View air permitted facilities, facility emissions and air quality monitoring sites in Wisconsin.
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Air Permit Process

Learn about the air permit process.
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Search

Search for an Air Permit.
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Air Permit Public Notices

Stay informed about opportunities for public comment, including public hearings.
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Electronic Reporting

Resources for facilities needing to submit reports or plans for compliance certification, monitoring, stack tests, etc.
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Air Permit Public Involvement

Find recent air permit actions and air permit input opportunities.
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Business Resources

Resources for businesses seeking an air permit.
Business Resources

Small Business Assistance

Air permit assistance through the Small Business Environmental Assistance Program (SBEAP).
Small Business Assistance

Air Quality

Learn about air quality in Wisconsin.
Air Quality

Air Emissions

Learn how air emissions are reported to DNR.
Air Emissions

Wisconsin Emissions Reduction Credit (ERC) Registry

The ERC Registry assists facilities looking for emissions offsets to meet NNSR permitting requirements.
Wisconsin Emissions Reduction Credit (ERC) Registry

Air Program Contacts

Our organization chart, staff lists and contacts by topic.
Air Program Contacts

Public Input

Air Permit Public Involvement

Regulations and Guidance

NR410 Rulemaking
Permitting Requirements for Nonattainment Areas in Wisconsin
Prevention of Significant Deterioration (PSD) Class I Areas
Air Program Publications, Guidance and Policy

Understanding air permits

Air Permit Options
How to Apply for Air Permits
Air Permit and Compliance Forms
Air Dispersion Modeling
Air Pollution Control Operation Permit Renewals FAQ
Registration Permit Options
Air Permits Glossary
Air Management Data Viewer

Business Resources

Air Permit Resources for Businesses
Annual Fee Structure for Title V Sources Required to Have an Air Permit
Notifying the Air Program About Administrative Facility Changes
Notifying the DNR Air Program About Facility Closings
Wisconsin Emissions Reduction Credit (ERC) Registry

Electronic reporting

Air Compliance Submittal Actions Electronic Reporting
Helpful Hints and FAQ

The Air Permit Process

Air Permit Search