An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Illinois Title V and NSR Program Evaluation

Final report of the U.S. Environmental Protection Agency's evaluation of the Illinois Environmental Protection Agency's (IEPA's) New Source Review (NSR) and Title V permit programs. EPA representatives conducted the on-site portion of the evaluation on March 13-15, 2017 at IEPA's central office in Springfield, Illinois.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.