Approval and Promulgation of Implementation Plans for the State of Alabama: Cross-State Air Pollution Rule

The Environmental Protection Agency (EPA) is taking final action to approve the State of Alabama's March 27, 2015, State Implementation Plan (SIP) revision, submitted by the Alabama Department of Environmental Management (ADEM). This SIP revision provides Alabama's state-determined allowance allocations for existing electric generating units (EGUs) in the State for the 2016 control periods and replaces the allowance allocations for the 2016 control periods established by EPA under the Cross-State Air Pollution Rule (CSAPR). The CSAPR addresses the ``good neighbor'' provision of the Clean Air Act (CAA or Act) that requires states to reduce the transport of pollution that significantly affects downwind air quality. In this final action, EPA is approving Alabama's SIP revision, incorporating the state-determined allocations for the 2016 control periods into the SIP, and amending the regulatory text of the CSAPR Federal Implementation Plan (FIP) to reflect this approval and inclusion of the state-determined allocations. EPA's allocations of CSAPR trading program allowances for Alabama for control periods in 2017 and beyond remain in place until the State submits and EPA approves state- determined allocations for those control periods through another SIP revision. The CSAPR FIPs for Alabama remain in place until such time as the State decides to replace the FIPs with a SIP revision.