The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of Alabama, through the Alabama Department of Environmental Management (ADEM), via a letter dated September 15, 2020. The SIP revision includes the 1997 8-hour ozone national ambient air quality standards (NAAQS) Limited Maintenance Plan (LMP) for the Birmingham, Alabama Area (hereinafter referred to as the ``Birmingham Area'' or ``Area''). The Birmingham Area is comprised of Jefferson and Shelby Counties. EPA is approving the Birmingham Area LMP because it provides for the maintenance of the 1997 8-hour ozone NAAQS within the Birmingham 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 Birmingham Area federally enforceable as part of the Alabama SIP.