Approval and Promulgation of Air Quality Implementation Plans; Maryland; NOX and SO2 Emissions Limitations for Fifteen Coal-Fired Electric Generating Units

EPA is approving a State Implementation Plan (SIP) revision submitted by the State of Maryland. This revision pertains to regulations for emission limitations at 15 Maryland power plants. The intended effect of this action is to approve, with one exception, Maryland's regulation which establishes statewide tonnage caps for emissions of nitrogen oxides (NO<INF>X</INF>) and sulfur dioxide (SO<INF>2</INF>) from 15 coal-fired electric generating units (EGUs). The exception pertains to a portion of the rule that Maryland requested EPA take no further action on. The provision, which EPA has determined has no impact on the rule that is being finalized today, will be withdrawn in a separate notice. This SIP action is being taken under the Clean Air Act (CAA).