Rulemaking To Reaffirm the Promulgation of Revisions of the Acid Rain Program Rules

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EPA is taking direct final action to reaffirm the promulgation of certain revisions of the Acid Rain Program rules in order to prevent disruption of this program, which has achieved significant, cost- effective reductions in sulfur dioxide (SO 2 ) emissions from utility sources since its commencement in 1995. These rule revisions were finalized in the Federal Register notices that also finalized the Clean Air Interstate Rule (CAIR) and the Federal Implementation Plans for CAIR (CAIR FIPs). The U.S. Court of Appeals for the District of Columbia Circuit recently issued a decision vacating and remanding CAIR and the CAIR FIPs. EPA and other parties have petitioned for rehearing, and the Court has not yet issued a mandate in the case. These revisions to the Acid Rain Program rules were not addressed by, or involved in any of the issues raised by, any parties in the proceeding or the Court. EPA believes it is reasonable to view these revisions as unaffected by the Court's decision. However, EPA is reaffirming-- pursuant to its authority under Title IV of the Clean Air Act (CAA) and CAA section 301--the promulgation of these revisions in this direct final rule in order to remove any unce