Proposed Determinations of Attainment, Failure to Attain and Reclassifications for the 2006 24-Hour PM Standards
On December 1, 2016 , the U.S. Environmental Protection Agency proposed determinations for 11 nonattainment areas classified as Moderate for the 2006 24-Hour Fine Particulate Matter National Ambient Air Quality Standards. Based on requirements under the Clean Air Act, these areas were required to meet the standard by December 31, 2015.
- Proposed Rule (pdf) (285 KB)