Air Plan Approval and Air Quality Designation; AL; Redesignation of the Etowah County Unclassifiable Area

On March 22, 2018, the State of Alabama, through the Alabama Department of Environmental Management (ADEM), submitted a request for the Environmental Protection Agency (EPA) to redesignate the Etowah County, Alabama fine particulate matter (PM2.5) unclassifiable area (hereinafter referred to as the ``Etowah County Area'' or ``Area'') to attainment for the 2006 primary and secondary 24-hour PM2.5 national ambient air quality standards (NAAQS). EPA is approving the State's request and redesignating the Area to unclassifiable/attainment for the 2006 primary and secondary 24-hour PM2.5 NAAQS based upon valid, quality-assured, and certified ambient air monitoring data showing that the PM2.5 monitor in the Area is in compliance with the 2006 primary and secondary 24-hour PM2.5 NAAQS.