Environmental Protection Agency February 16, 2023 – Federal Register Recent Federal Regulation Documents
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Partial Approval, Conditional Approval, and Partial Disapproval of Air Quality State Implementation Plans; Nevada; Infrastructure Requirements for Fine Particulate Matter
The Environmental Protection Agency (EPA) is approving in part, conditionally approving in part, and disapproving in part a state implementation plan (SIP) revision submitted by the State of Nevada pursuant to the requirements of the Clean Air Act (CAA or ``Act'') for the implementation, maintenance, and enforcement of the 2012 national ambient air quality standards (NAAQS) for particulate matter less than 2.5 micrometers in diameter (PM2.5). As part of this action, we are reclassifying certain regions of the State for emergency episode planning purposes with respect to PM2.5. We are also approving an exemption from emergency episode planning requirements for PM2.5 for the Nevada Division of Environmental Protection (NDEP) and Washoe County. Finally, we are approving two new definitions and four regulatory revisions into the Nevada SIP.
Air Plan Approval; California; Innovative Clean Transit Regulation
The Environmental Protection Agency (EPA) is taking final action to approve a revision to the California State Implementation Plan (SIP) consisting of State rules intended to reduce particulate matter (PM) and oxides of nitrogen (NOX) emissions from public transit buses. The EPA is approving the SIP revision because the regulations meet the applicable requirements of the Clean Air Act. Approval of the regulations as part of the California SIP makes them federally enforceable.
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