Revisions of Standards of Performance for New and Existing Stationary Sources; Electric Utility Steam Generating Units; Federal Plan Requirements for Clean Air Mercury Rule; and Revisions of Acid Rain Program Rules

摘要

In this action, EPA proposes a Federal Plan to implement Clean Air Act (CAA) section 111 mercury (Hg) standards of performance for new and existing coal-fired electric utility steam generating units (Utility Unit or EGU) located in States or Indian Country covered by the Clean Air Mercury Rule (CAMR) which do not have EPA approved and currently effective State plans. The EPA will not take final action on the proposed Federal Plan until EPA either finds that a State has failed to timely submit a plan or disapproves a submitted plan. Any final Federal Plan is expected to serve primarily to temporarily fill a regulatory gap in circumstances where either a State fails to timely submit a plan or EPA disapproves a submitted plan as, in either case, States will be free to submit an approvable plan after promulgation of the Federal Plan and upon approval of the State Plan by EPA, the Federal Plan will no longer apply to coal-fired Utility Units covered by the State Plan. This action also proposes certain revisions to both the CAMR State Plan model cap-and-trade rule (in order to make it compatible with the Federal Plan cap-and-trade rule and to make technical corrections) and the Acid Rain