Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

JavaScript appears to be disabled on this computer. Please click here to see any active alerts.

Nitrogen Dioxide Designations - Illinois State Recommendations and EPA Response

Nitrogen dioxide designations - State recommendations and EPA response for Illinois.

Illinois State Recommendation (pdf) (96.68 KB, January 20, 2011)
EPA Response to Illinois Recommendation (pdf) (106.39 KB, June 28, 2011)
Illinois Round 2 State Recommendations (pdf) (136.83 KB, August 2, 2011)