The Environmental Protection Agency (EPA) is approving Tennessee's July 31, 2019, State Implementation Plan (SIP) submission pertaining to the ``good neighbor'' provision of the Clean Air Act (CAA or Act) for the 2010 1-hour sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS). The good neighbor provision requires each State's implementation plan to contain adequate provisions prohibiting the interstate transport of air pollution in amounts that will contribute significantly to nonattainment, or interfere with maintenance, of a NAAQS in any other State.

The Environmental Protection Agency (EPA) is approving revisions to the Missouri State Implementation Plan (SIP) received on August 4, 2022. The submission removes a provision in the Missouri regulation ``Construction Permits By Rule'' that allows the burning of illegal and waste pharmaceutical drugs in crematories and animal incinerators.

The Environmental Protection Agency (EPA) is updating the materials that are incorporated by reference (IBR) into the North Carolina State Implementation Plan (SIP). The regulations affected by this update have been previously submitted by North Carolina and approved by EPA. In this final rule, EPA is also notifying the public of corrections and clarifying changes in the Code of Federal Regulations (CFR) tables that identify material incorporated by reference into the North Carolina SIP.

Pursuant to the Federal Clean Air Act (CAA or Act), the Environmental Protection Agency (EPA) is proposing to approve two revisions to the Arkansas State Implementation Plan (SIP) submitted by the Governor of the State of Arkansas on May 12, 2022, and November 1, 2022. The revisions were submitted in response to a finding of substantial inadequacy and SIP call published by EPA on June 12, 2015, which included certain provisions in the Arkansas SIP related to excess emissions during startup, shutdown, and malfunction (SSM) events.