# Air Plan Approval; Tennessee; Eastman Chemical Company Nitrogen Oxides SIP Call Alternative Monitoring
> **Rule** · Final rule. · Published 2023-03-08 · Effective 2023-04-07 · 88 FR 14276
## Document
- **Document number:** 2023-04504
- **Category:** air-emissions
- **Federal Register citation:** 88 FR 14276
- **CFR reference:** 40 CFR 52
- **Publication date:** 2023-03-08
- **Effective date:** 2023-04-07
- **State:** TN
- **EPA docket:** EPA-R04-OAR-2022-0158
## Abstract

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<INF>X</INF>) SIP Call. EPA is approving these changes pursuant to the Clean Air Act (CAA or Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/03/08/2023-04504/air-plan-approval-tennessee-eastman-chemical-company-nitrogen-oxides-sip-call-alternative-monitoring)
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