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Air quality facility-specific information

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Environment, Great Lakes, and Energy

Air quality facility-specific information

The Air Quality Division posts information about facilities regulated by state and federal air quality regulations in the State of Michigan. This information includes, but is not limited to, Permits to Install (PTI), Renewable Operating Permits (ROP), inspection reports, stack test report executive summaries, enforcement documents, annual emissions reports, and air quality actions open for comment.

If a link leads to a page with only "parent directory" showing, this indicates that no documents are available currently for the facility. Information pre-dating October 1, 2013, may be available and can be requested via a Freedom of Information Act (FOIA) request.

Facility specific information

The Air Quality Division shares information about facilities regulated by state and federal air quality regulations in Michigan through MiEnviro Portal Site Explorer.

This information includes but is not limited to, Permits to Install (PTI), Renewable Operating Permits (ROP), inspection reports, stack test reports, and enforcement documents. Lists of historical information, pre-December 10, 2024 is still available. 

Facility-specific information prior to December 10, 2024

Contact information

For further information about a facility's status, contact the appropriate district office.