The Environmental Protection Agency (EPA) is taking final action to approve revisions to the State Implementation Plan (SIP) submitted on November 29, 2021, by the State of Missouri. This final action approves revisions to a state regulation related to the Cross- State Air Pollution Rule SO<INF>2</INF> Group 1 Trading Program. The revisions alter the amounts of CSAPR SO<INF>2</INF> Group 1 emission allowances that are allocated to two of the state's units from the state's annual emissions budgets.

The Environmental Protection Agency (EPA) is approving, under the Clean Air Act (CAA), a revision to the Ohio State Implementation Plan (SIP) intended to provide for attainment of the 2010 primary, health-based 1-hour sulfur dioxide (SO<INF>2</INF>) national ambient air quality standard (NAAQS or standard) for the Muskingum River SO<INF>2</INF> nonattainment area.

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving portions of three revisions to the Texas State Implementation Plan (SIP) submitted by the Texas Commission on Environmental Quality (TCEQ) on July 9, 2021, and January 21, 2022, that update the air permitting program by removing obsolete provisions and enhancing public notice requirements of the air permitting program. We are also making ministerial edits to correct several errors identified in the amendatory language for the Texas SIP.

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing to approve portions of the revisions to the Arkansas State Implementation Plan (SIP) including revisions to the Arkansas Pollution Control and Ecology Commission's (``Commission'' or APC&EC) Rule No. 19, Rules of the Arkansas Plan of Implementation for Air Pollution Control submitted by the Arkansas Department of Energy and Environment, Division of Environmental Quality (DEQ) via the Arkansas Governor's Office on June 22, 2022.