# Approval and Promulgation of Implementation Plans Commonwealth of Kentucky: Approval of Revisions to the 1-Hour Ozone Maintenance State Implementation Plan for Marshall and a Portion of Livingston Counties
> **Rule** · Direct final rule. · Published 2001-08-20 · Effective 2001-10-19 · 66 FR 43488
## Document
- **Document number:** 01-20784
- **Category:** air-emissions
- **Federal Register citation:** 66 FR 43488
- **CFR reference:** 40 CFR 52
- **Publication date:** 2001-08-20
- **Effective date:** 2001-10-19
- **State:** KY
- **EPA docket:** KY130-200117(a)
## Abstract

EPA is approving revisions to the 1-hour ozone maintenance state implementation plan (SIP) for Marshall and a portion of Livingston Counties, Kentucky (i.e., the Paducah area), submitted on June 14, 2001, by the Commonwealth of Kentucky through the Natural Resources and Environmental Protection Cabinet to correct/revise the original motor vehicle emissions budgets (MVEBs) approved by EPA. Once EPA's approval is effective, the revised MVEBs must be used for transportation conformity purposes in the Paducah area.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/08/20/01-20784/approval-and-promulgation-of-implementation-plans-commonwealth-of-kentucky-approval-of-revisions-to)
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