Ozone Designations for the 2015 Standards - Colorado
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Colorado State Recommendation (PDF)(136 pp, 26 MB)
- Colorado State Recommendation - Technical Support Document (PDF)(91 pp, 8 MB)
- EPA's Response to Colorado (PDF)(2 pp, 57 K)
- EPA's Technical Support Document (TSD) (PDF)(35 pp, 2 MB)
- Final EPA Technical Support Document (Colorado) (PDF)(35 pp, 2 MB)