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Region 7 State Implementation Plan (SIP) Summaries and Federally Approved Regulations

The Clean Air Act gives the states the primary authority to manage their air quality resources. However, to ensure a certain amount of consistency from state to state, EPA requires air pollution control agencies to develop control plans based on broad Federal statutes and regulations. The elements of most importance to the overall control strategy are the State Implementation Plan, the Section 111(d) Plan, the Section 112(l) Plan, the Title V Operating Permit Program, and other delegated Federal air pollution control programs.

The following links provide information about Federally approved regulations in each of the Region 7 states. For more details, click on the state of interest. 

Delegation of Authority for NSPS, NESHAP and MACT


The electronic versions of these approved regulations are in Adobe Portable Document Format. You will need to use the Adobe Acrobat Reader to view these documents. Federally approved regulations for Region 7 states which are not available electronically can be obtained from:

Disclaimer: We have taken considerable care to ensure that the web version of Federally approved regulations match those formally approved by EPA pursuant to the Clean Air Act. However, differences may occur. In the event of a discrepancy between the web compilation and the official State Implementation Plan, the official State Implementation Plan will govern. For more information about the official State Implementation Plan, consult 40 C.F.R. Part 52 and subsections relevant to the state of interest.

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