Nitrogen Dioxide Designations
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This page contains a list of regulatory actions and correspondence related to the 2010 NO2 standard.
EPA Completes 2010 NO2 Standard Designations
January 20, 2012 – Based on the most recent air quality monitoring data (2008-2010), EPA has designated all areas of the country as unclassifiable/attainment.
- Federal Register Notice (PDF) (57pp, 347 KB) - Federal Register - Feb 17, 2012
- Fact Sheet (PDF) (2pp, 41 KB)