Environmental Protection Agency March 19, 2024 – Federal Register Recent Federal Regulation Documents

Air Plan Approval; Wisconsin; Milwaukee Second 10-Year 2006 24-Hour PM2.5 Limited Maintenance Plan
Document Number: 2024-05783
Type: Proposed Rule
Date: 2024-03-19
Agency: Environmental Protection Agency
The Environmental Protection Agency (EPA) is proposing to approve, under the Clean Air Act (CAA), the limited maintenance plan (LMP) submitted on April 8, 2022, by the Wisconsin Department of Natural Resources (WDNR) for the Milwaukee-Racine maintenance area including Milwaukee, Waukesha, and Racine counties. The plan addresses the second 10-year maintenance period for particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers (PM2.5). EPA is proposing to approve Wisconsin's LMP submission for Milwaukee-Racine because it provides for the maintenance of the 2006 PM2.5 national ambient air quality standard (NAAQS) through the end of the second 10-year portion of the maintenance period. In addition, EPA is initiating the process to find the Milwaukee-Racine PM2.5 LMP adequate for transportation conformity purposes.
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