2018-17357: Air Plan Approval; Indiana; Cross-State Air Pollution Rule
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The Environmental Protection Agency (EPA) is proposing to approve a state submission concerning the Cross-State Air Pollution Rule (CSAPR) that was submitted by Indiana on November 27, 2017 as a revision to the Indiana State Implementation Plan (SIP). Under CSAPR, large electricity generating units (EGUs) in Indiana are subject to Federal Implementation Plans (FIPs) requiring the units to participate in CSAPR's Federal trading program for annual emissions of nitrogen oxides (NO<INF>X</INF>), one of CSAPR's two Federal trading programs for annual emissions of sulfur dioxide (SO<INF>2</INF>), and one of CSAPR's two Federal trading programs for ozone season emissions of NO<INF>X</INF>. This action would approve the State's regulations requiring large Indiana EGUs to participate in new CSAPR state trading programs for annual NO<INF>X</INF>, annual SO<INF>2</INF>, and ozone season NO<INF>X</INF> emissions integrated with the CSAPR Federal trading programs, replacing the corresponding FIP requirements. EPA is proposing to approve the SIP revision because the submittal meets the requirements of the Clean Air Act (CAA or Act) and EPA's regulations for approval of a CSAPR full SIP revision replacing the requirements of a CSAPR FIP. Under the CSAPR regulations, approval of the SIP revision would automatically eliminate Indiana's units' requirements under the corresponding CSAPR FIPs addressing Indiana's interstate transport (or "good neighbor") obligations for the 1997 fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standard (NAAQS), the 2006 PM<INF>2.5</INF> NAAQS, the 1997 ozone NAAQS, and the 2008 ozone NAAQS. Like the CSAPR FIP requirements that would be replaced, approval of the SIP revision would fully satisfy Indiana's good neighbor obligations for the 1997 PM<INF>2.5</INF> NAAQS, the 2006 PM<INF>2.5</INF> NAAQS, and the 1997 ozone NAAQS and would partially satisfy Indiana's good neighbor obligation for the 2008 ozone NAAQS.
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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