# Air Plan Approval; Kentucky: Jefferson County Prevention of Significant Deterioration
> **Rule** · Final rule. · Published 2019-04-10 · Effective 2019-05-10 · 84 FR 14268
## Document
- **Document number:** 2019-07020
- **Category:** air-emissions
- **Federal Register citation:** 84 FR 14268
- **CFR reference:** 40 CFR 52
- **Publication date:** 2019-04-10
- **Effective date:** 2019-05-10
- **State:** KY
- **EPA docket:** EPA-R04-OAR-2018-0018
## Abstract

The Environmental Protection Agency (EPA) is taking final action to approve two revisions to the Jefferson County portion of the Kentucky State Implementation Plan (SIP), submitted by the Commonwealth of Kentucky, through the Energy and Environment Cabinet (Cabinet), with letters dated August 25, 2017 and March 15, 2018. The SIP revisions were submitted by the Cabinet on behalf of the Louisville Metro Air Pollution Control District (District) and make amendments to Jefferson County's regulation regarding the prevention of significant deterioration (PSD) permitting program. This action is being taken pursuant to the Clean Air Act (CAA or Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/04/10/2019-07020/air-plan-approval-kentucky-jefferson-county-prevention-of-significant-deterioration)
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