Air Plan Approval; Maine; Infrastructure State Implementation Plan Requirements for the 2012 PM2.5

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Maine. This revision addresses the infrastructure requirements of the Clean Air Act (CAA or Act) for the 2012 fine particle (PM2.5) National Ambient Air Quality Standards (NAAQS). EPA is conditionally approving the SIP revision for infrastructure requirements related to State Boards and Conflicts of Interest. The intended effect of this action is to approve the infrastructure requirements of Maine's air quality management program with respect to this NAAQS into the Maine SIP. This action is being taken in accordance with the Clean Air Act.