The Environmental Protection Agency (EPA) is approving into the Ohio State Implementation Plan (SIP) a source-specific volatile organic compound (VOC) limit, excluding water and exempt solvents, for the applicable process lines at Forest City Technologies, Plant 4, in Wellington, Ohio as contained in the June 23, 2020, operating permit issued by the Ohio Environmental Protection Agency. On August 14, 2023, EPA proposed to approve this action and received no adverse comments.

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of New York for purposes of certifying and meeting the requirements for Reasonably Available Control Technology (RACT) for the Serious classification of the 2008 and Moderate classification of the 2015 8-hour Ozone National Ambient Air Quality Standards (NAAQS). The EPA is also approving that this SIP revision fulfills SIP requirements pertaining to the Ozone Transport Region (OTR) for the 2015 Ozone NAAQS.

The Environmental Protection Agency (EPA) is approving a Florida State Implementation Plan (SIP) revision, submitted by the State of Florida through the Florida Department of Environmental Protection (FDEP) on April 1, 2022. The SIP revision revises multiple stationary source rules in Florida's SIP with substantive and minor changes throughout. EPA is approving these changes pursuant to the Clean Air Act (CAA or Act).

The Environmental Protection Agency (EPA) is disapproving certain portions of a state implementation plan (SIP) revision submitted by the State of Delaware, through the Delaware Department of Natural Resources and Environmental Control (DNREC), on November 22, 2016. The revision was submitted by Delaware in response to a national finding of substantial inadequacy and SIP call published on June 12, 2015, which included certain provisions in the Delaware SIP related to excess emissions during startup, shutdown, and malfunction (SSM) events.