🌍EPA Defers Sanctions
The Environmental Protection Agency (EPA) is making an interim final determination that the State of Alaska has submitted state implementation plan (SIP) revisions that satisfy outstanding Clean Air Act requirements. This interim final determination defers the imposition of sanctions for the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) Fairbanks North Star Borough PM<INF>2.5</INF> nonattainment area. This determination is based on a proposed approval, published in the "Proposed Rules" section of this Federal Register, of the SIP revisions, submitted by the State of Alaska (Alaska or the State) on December 4, 2024, to address Clean Air Act requirements for the 2006 24-hour PM<INF>2.5</INF> national ambient air quality standards (NAAQS).
Learn More🌫️EPA Denies Redesignation Request for Louisville Air Quality
The Environmental Protection Agency (EPA) is withdrawing its proposed approval of the request to redesignate the Kentucky portion of the Louisville, Kentucky-Indiana, 2015 8-hour ozone nonattainment area (hereinafter referred to as the "Louisville, KY-IN Area" or "Area") to attainment for the 2015 8-hour ozone National Ambient Air Quality Standards (NAAQS or standards). EPA is withdrawing its April 18, 2023, proposed approval and is now proposing to deny Kentucky's request to redesignate the Kentucky portion of the Area from nonattainment to attainment, based on the Area's violation of the NAAQS. EPA is taking no action at this time on Kentucky's maintenance plan, including the regional motor vehicle emission budgets for nitrogen oxides (NO<INF>X</INF>) and volatile organic compounds (VOC) for the years of 2019 and 2035, submitted with Kentucky's redesignation request for the Louisville, KY-IN Area. The redesignation request and maintenance plan state implementation plan (SIP) revision were submitted by the Commonwealth of Kentucky, through the Kentucky Energy and Environment Cabinet (Cabinet), Division of Air Quality (DAQ), on September 6, 2022.
Learn More🌍Ohio's Air Quality Regulation Impacts for Businesses in 2025
The Environmental Protection Agency (EPA) is proposing to approve the following portions of Ohio's State Implementation Plan (SIP) submission for the Cleveland 2015 ozone national ambient air quality standard (NAAQS or standard) Moderate nonattainment area: the base year emissions inventory, the reasonable further progress (RFP) demonstration, the motor vehicle inspection and maintenance (I/M) program, and the nonattainment new source review (NNSR) program. EPA is proposing to approve these portions of the State's submission as a SIP revision pursuant to section 110 and part D of the CAA and EPA's regulations. EPA is also initiating the adequacy process and proposing approval of the 2023 motor vehicle emissions budgets (budgets) associated with the Cleveland Moderate ozone nonattainment RFP demonstration.
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