Clean Air Act Reclassification; Colorado; Reclassification of the Denver Metro/North Front Range 2015 Ozone Nonattainment Area to Serious
Under the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is granting a request by the State of Colorado to reclassify the Denver Metro/North Front Range ozone nonattainment area ("DMNFR) from "Moderate" to "Serious" for the 2015 8-hour ozone national ambient air quality standards (NAAQS).