Approval and Promulgation of Implementation Plans; Alabama; Disapproval of 110(a)(2)(E)(ii) Infrastructure Requirement for the 1997 and 2006 Fine Particulate Matter National Ambient Air Quality Standards

EPA is taking final action to disapprove a portion of the State Implementation Plan (SIP) submissions, submitted by the State of Alabama, through the Alabama Department of Environmental Management (ADEM), on July 25, 2008, and September 23, 2009, which were intended to meet the requirement of the Clean Air Act (CAA or the Act). The CAA requires that each state adopt and submit a SIP for the implementation, maintenance, and enforcement of each NAAQS promulgated by EPA, which is commonly referred to as an "infrastructure" SIP. Alabama certified that the Alabama SIP contains provisions that ensure the 1997 annual and 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standards (NAAQS) are implemented, enforced and maintained in the State. Specifically, EPA is disapproving the State's submissions that requires the State to comply with the CAA. EPA is taking a separate action to address the other applicable infrastructure elements for the 1997 annual and 2006 24-hour PM<INF>2.5</INF> NAAQS.