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.