Environmental Protection Agency January 13, 2023 – Federal Register Recent Federal Regulation Documents

The Environmental Protection Agency (EPA) is finalizing approval of a state implementation plan (SIP) revision submitted by the State of North Carolina, through the North Carolina Department of Environment Quality, Division of Air Quality (DAQ), via a letter dated December 9, 2021. The SIP revision includes the 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS) Limited Maintenance Plan (LMP) for the North Carolina portion (hereinafter referred to as the Metrolina Area) of the Charlotte-Gastonia-Rock Hill NC-SC 1997 8-hour ozone maintenance area (hereinafter referred to as the ``Charlotte NC- SC 1997 8-hour NAAQS Area'' or ``bi-state Charlotte Area''). The Charlotte NC-SC 1997 8-hour NAAQS Area is comprised of Cabarrus, Gaston, Lincoln, Mecklenburg, Rowan and Union Counties and a portion of Iredell County (i.e., Davidson and Coddle Creek Townships) in North Carolina; and the Rock Hill Metropolitan Planning Organization boundary in York County, South Carolina. EPA is finalizing approval because the LMP provides for the maintenance of the 1997 8-hour ozone NAAQS within the Metrolina Area through the end of the second 10-year portion of the maintenance period. This action makes certain commitments related to maintenance of the 1997 8-hour ozone NAAQS in the Metrolina Area federally enforceable as part of the North Carolina SIP.

The Environmental Protection Agency (EPA) is proposing to approve amendments to the Mohegan Tribe of Indians of Connecticut (the Mohegan Tribe, Mohegans, or the Tribe) Tribal Implementation Plan (TIP) under the Clean Air Act (CAA) to regulate air pollution within the exterior boundaries of the Tribe's reservation. EPA approved the Tribe for treatment in the same manner as a State (Treatment as State or TAS) for purposes of administering New Source Review (NSR) under the CAA on December 26, 2006. The proposed TIP includes permitting requirements for minor sources of air pollution not covered by the Tribe's existing federally approved TIP. The purpose of the proposed TIP is to enable the Tribe to attain and maintain the National Ambient Air Quality Standards (NAAQS) within the exterior boundaries of its reservation by establishing new elements to its federally enforceable preconstruction air permitting program.