Air Plan Approval; Tennessee; Eastman Chemical Company Nitrogen Oxides SIP Call Alternative Monitoring

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The Environmental Protection Agency (EPA) is conditionally approving a revision to the Tennessee State Implementation Plan (SIP) submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), through a letter dated August 11, 2021. This revision establishes alternative monitoring, recordkeeping, and reporting requirements under the Nitrogen Oxides (NO X ) SIP Call. EPA is approving these changes pursuant to the Clean Air Act (CAA or Act).