An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Clean Air Markets

Final Determination Regarding Good Neighbor Obligations for the 2008 Ozone National Ambient Air Quality Standard

Internet version of the Final Determination Regarding Good Neighbor Obligations for the 2008 Ozone National Ambient Air Quality Standard (CSAPR Close‐Out ). Please refer to the official version of the rule in a forthcoming FR publication, which will appear on the Government Printing Office's FDSys website and on Regulations.gov.

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