The Environmental Protection Agency (EPA) is proposing to approve State Implementation Plan (SIP) revisions submitted by the State of New Hampshire. These revisions provide certifications that the State has adopted regulations meeting the requirements for reasonably available control technology (RACT) for the 2008 and 2015 ozone national ambient air quality standards (NAAQS).

The Environmental Protection Agency (EPA) is approving portions of a State Implementation Plan (SIP) revision submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), on November 19, 2016, as supplemented on January 20, 2023, in response to a finding of substantial inadequacy and SIP call published on June 12, 2015, regarding provisions in the Tennessee SIP related to excess emissions during startup, shutdown, and malfunction (SSM) events.

The Environmental Protection Agency (EPA) is taking final action to disapprove under the Clean Air Act (CAA or ``Act''), state implementation plan (SIP) submissions from the State of California that address contingency measures requirements for the 2008 ozone national ambient air quality standards (NAAQS) in the Sacramento Metro, California ozone nonattainment area. The EPA is finalizing this disapproval because the SIP submissions do not provide for contingency measures that would be triggered if the area fails to attain the NAAQS or make reasonable further progress (RFP).

The Environmental Protection Agency (EPA) is proposing to approve changes to the Georgia State Implementation Plan (SIP), submitted by the State of Georgia through the Georgia Environmental Protection Division (GA EPD) via a letter dated November 4, 2021. The SIP revision revises Georgia's Stage I vapor recovery rules primarily by removing outdated references and making several clarifying edits. The revision also updates several definitions and makes two substantive changes. EPA is proposing to approve these changes pursuant to the Clean Air Act (CAA or Act).