2023-27297: Air Plan Approval; Alabama; Birmingham Limited Maintenance Plan for the 2006 24-Hour PM2.5 NAAQS
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The Environmental Protection Agency (EPA) is proposing to approve a State implementation plan (SIP) revision submitted by the State of Alabama, through the Alabama Department of Environmental Management (ADEM), via a letter dated February 2, 2021. The SIP revision includes the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standards (NAAQS) Limited Maintenance Plan (LMP) for the Birmingham, Alabama maintenance area (Birmingham Area or Area). The Birmingham 2006 24-hour PM<INF>2.5</INF> maintenance area is comprised of Jefferson County, Shelby County, and a portion of Walker County. EPA is proposing to approve the Birmingham Area LMP because it provides for the maintenance of the 2006 24-hour PM<INF>2.5</INF> NAAQS within the Birmingham Area through the end of the second 10-year portion of the maintenance period in 2034. The effect of this action would be to incorporate into the Alabama SIP certain commitments related to maintenance of the 2006 24-hour PM<INF>2.5</INF> NAAQS in the Birmingham Area, making them federally enforceable. EPA is also starting the adequacy process, consistent with requirements in the transportation conformity rule, for this LMP.
The agency’s own summary, as published.
What this changes
Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.
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