Nitrogen dioxide designations - State recommendations and EPA response for North Carolina.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- North Carolina State Recommendation (PDF)(2 pp, 1 MB, December 16, 2010)
- EPA Response to North Carolina Recommendation (PDF)(2 pp, 66 K, June 28, 2011)
- North Carolina Round 2 State Recommendation (PDF)(1 pg, 377 K, September 13, 2011)