Air Plan Approval; Kentucky; Emissions Inventory Requirements for the 2015 8-Hour Ozone Standard Nonattainment Areas
The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the Commonwealth of Kentucky, through the Kentucky Energy and Environment Cabinet (Cabinet) on December 22, 2021, to address the base year emissions inventory requirements for the 2015 8-hour ozone national ambient air quality standard (NAAQS) for Kentucky counties in the Cincinnati, Ohio-Kentucky 2015 8-hour ozone NAAQS nonattainment area (hereinafter referred to as the Cincinnati, OH-KY Area), and for Kentucky counties in the Louisville, Kentucky-Indiana 2015 8-hour NAAQS nonattainment area (hereinafter referred to as the Louisville, KY-IN Area). Specifically, EPA is proposing to approve Kentucky's SIP revision addressing the emissions inventory requirements for the 2015 8-hour ozone nonattainment areas for the portions of Boone, Campbell, and Kenton Counties in the Cincinnati, OH-KY Area, and Bullitt, Jefferson, and Oldham Counties in the Louisville, KY-IN Area. These requirements apply to all ozone nonattainment areas. This action is being proposed pursuant to the Clean Air Act (CAA or Act).