# Air Plan Approval; Tennessee; NOX SIP Call and CAIR
> **Rule** · Final rule. · Published 2019-03-06 · Effective 2019-04-05 · 84 FR 7998
## Document
- **Document number:** 2019-03956
- **Category:** air-emissions
- **Federal Register citation:** 84 FR 7998
- **CFR reference:** 40 CFR 52
- **Publication date:** 2019-03-06
- **Effective date:** 2019-04-05
- **State:** TN
- **EPA docket:** EPA-R04-OAR-2018-0631
## Abstract

The Environmental Protection Agency (EPA) is taking final action to conditionally approve a portion of a State Implementation Plan (SIP) revision submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC) with a letter dated February 27, 2017, to establish a SIP-approved state control program to comply with the obligations of the Nitrogen Oxides (NO<INF>X</INF>) SIP Call with respect to certain sources. EPA is also taking final action to fully approve the remaining portion of the same Tennessee SIP revision to remove the SIP-approved portions of the State's Clean Air Interstate Rule (CAIR) Program rules from the Tennessee SIP. In addition, EPA is also fully approving a revision to the Tennessee SIP submitted with a letter dated April 3, 2018, to remove regulations related to a previous NO<INF>X</INF> trading program.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/03/06/2019-03956/air-plan-approval-tennessee-nox-sip-call-and-cair)
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