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Approved Air Quality Implementation Plans in Region 5

Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin and Tribal Nations

Use the tabs below to find approved State Implementation Plans (SIPs), Tribal Implementation Plans (TIPs), and Federal Implementation Plans (FIPs) within EPA Region 5 states listed above.

State Implementation Plans

EPA-approved regulations and planning documents.  We are updating the SIPs content for Region 5 states. For further assistance, please email Christos Panos.

Tribal Implementation Plans

Region 5 currently has no approved TIPs.

Federal Implementation Plans

Region 5 currently has no approved FIPs.