# Air Quality Plans; Tennessee; Infrastructure Requirements for the 2015 8-Hour Ozone National Ambient Air Quality Standard
> **Rule** · Final rule. · Published 2019-12-26 · Effective 2020-01-27 · 84 FR 70895
## Document
- **Document number:** 2019-27542
- **Category:** air-emissions
- **Federal Register citation:** 84 FR 70895
- **CFR reference:** 40 CFR 52
- **Publication date:** 2019-12-26
- **Effective date:** 2020-01-27
- **State:** TN
- **EPA docket:** EPA-R04-OAR-2019-0203
## Abstract

The Environmental Protection Agency (EPA) is approving the State Implementation Plan (SIP) submission, provided by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), through a letter dated September 13, 2018, for inclusion into the Tennessee SIP. This action pertains to the infrastructure requirements of the Clean Air Act (CAA or Act) for the 2015 8-hour ozone national ambient air quality standard (NAAQS). Whenever EPA promulgates a new or revised NAAQS, the CAA requires that each state adopt and submit a SIP for the implementation, maintenance, and enforcement of each NAAQS promulgated by EPA. TDEC certified that the Tennessee SIP contains provisions that ensure the 2015 8-hour ozone NAAQS is implemented, enforced, and maintained in Tennessee. EPA has determined that portions of Tennessee's SIP submission satisfy certain required infrastructure elements for the 2015 8-hour ozone NAAQS.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/12/26/2019-27542/air-quality-plans-tennessee-infrastructure-requirements-for-the-2015-8-hour-ozone-national-ambient)
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