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 www.epa.gov. 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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

Tribal Consultation on Oklahoma Permitting SIP Revisions

Tribal Consultation on Oklahoma Permitting SIP Revisions, initiated on December 10, 2015 via conference call:

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

Oklahoma SIP Submittal (01-18-2013) (PDF)(410 pp, 18 MB, January 18, 2013)
Oklahoma SIP Submittal (02-06-2012) (PDF)(187 pp, 7 MB, February 6, 2012)
Oklahoma SIP Submittal (12-27-2010) (PDF)(72 pp, 3 MB, December 27, 2010)
Oklahoma SIP Submittal (07-16-2010) (PDF)(288 pp, 19 MB, July 16, 2010)
Oklahoma SIP Submittal (07-16-2010 (PDF)(657 pp, 34 MB, July 16, 2010)
Oklahoma SIP Submittal (06-24-2010) (PDF)(401 pp, 24 MB, June 24, 2010)
Oklahoma SIP Submittal (02-14-2002) (PDF)(4505 pp, 225 MB, February 14, 2002)