Ozone Advance
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 City area sign-up letter (PDF)(1 pg, 304 K, May 2012)
- Oklahoma City area path forward (PDF)(15 pp, 966 K, May 2013)
- Oklahoma City area update (PDF)(14 pp, 1 MB, June 2014)
- Oklahoma City Update 2015 (PDF)(15 pp, 1 MB)
- Oklahoma City Update Letter 2016 (PDF)(1 pg, 247 K, June 7, 2016)
- Oklahoma City Update Report 2016 (PDF)(15 pp, 478 K, June 7, 2016)
- Oklahoma City Update 2017 (PDF)(18 pp, 1 MB, July 6, 2017)
- Oklahoma City Update 2018 (PDF)(24 pp, 4 MB, June 15, 2018)
- Oklahoma City Update 2019 (PDF)(23 pp, 4 MB, July 29, 2019)
- Oklahoma City Update 2020.pdf (PDF)(27 pp, 2 MB, June 2020)