Approval and Promulgation of Air Quality Implementation Plans; Michigan; Regional Haze State Implementation Plan; Federal Implementation Plan for Regional Haze

EPA is finalizing action on a State Implementation Plan (SIP) submittal from the State of Michigan dated November 5, 2010, addressing regional haze for the first implementation period (ending in 2018). This action is being taken in accordance with the Clean Air Act and EPA's rules for states to prevent and remedy future and existing anthropogenic impairment of visibility in mandatory Class I areas through a regional haze program. EPA finds that Michigan meets several regional haze planning requirements, including identification of affected Class I areas, provision of a monitoring plan, consultation with other parties, and adoption of a long-term strategy providing for reasonable progress except to the extent Michigan's plan failed to require best available retrofit technology (BART). As part of this action, EPA finds that the State's submittal addressed BART for some sources but failed to satisfy BART for two sources, namely St. Marys Cement (SMC) and Escanaba Paper Company (Escanaba Paper). EPA is promulgating a Federal Implementation Plan (FIP) including nitrogen oxide (NO<INF>X</INF>) emission limits for these two sources in addition to sulfur dioxide (SO<INF>2</INF>) emission limits for SMC to satisfy these requirements.