2019-10069: Air Plan Approval; Indiana; Regional Haze Plan and Prong 4 (Visibility) for the 2006 and 2012 PM2.5, 2010 NO2, 2010 SO2, and 2008 Ozone NAAQS
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The Environmental Protection Agency (EPA) is proposing to take action under the Clean Air Act (CAA) on an Indiana's November 27, 2017 State Implementation Plan (SIP) submittal addressing regional haze. This proposed action is based on EPA's determination that a state's implementation of the Cross-State Air Pollution Rule (CSAPR) program continues to meet the criteria of the Regional Haze Rule (RHR) to qualify as an alternative to the application of Best Available Retrofit Technology (BART). EPA is proposing several related actions. First, EPA is proposing to approve the portion of Indiana's November 27, 2017 SIP submittal seeking to change reliance from the Clean Air Interstate Rule (CAIR) to CSAPR for certain regional haze requirements. EPA is also proposing to convert EPA's limited approval/ limited disapproval of Indiana's regional haze SIP to a full approval and to withdraw the Federal Implementation Plan (FIP) provisions that address the limited disapproval. Finally, EPA is proposing to approve the visibility prong of Indiana's infrastructure SIP submittals for the 2012 annual and 2006 24-hour fine particulate matter (PM<INF>2.5</INF>), 2010 nitrogen dioxide (NO<INF>2</INF>), and 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standards (NAAQS) and to convert EPA's disapproval of the visibility portion of Indiana's infrastructure SIP submittal for the 2008 ozone NAAQS to an approval.
The agency’s own summary, as published.
What this changes
Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.
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