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Planning & Attainment >> Ozone Non-Attainment Areas

8-Hour Ozone Nonattainment Boundary Recommendations (2008 Revised 8-Hour Ozone Standard, 0.075 ppm) Final Nonattainment Area Designations for 2008 8-Hour Ozone Standard (Map) Presentation for Proposed Nonattainment Boundary Recommendation (January 2012) NCDAQ's comments on USEPA's January 6, 2010, proposed ozone standards NCDAQ Report on USEPA's Proposed Ozone Standards, March 25, 2010 Existing 8-hour Ozone Non-Attainment Areas in North Carolina (1997 8-Hour Ozone Standard, 0.08 ppm) NC 8-hour Ozone Design Values  EPA Ozone Non-Attainment Designations