# Approval and Promulgation of Implementation Plans; Louisiana: Revision to the Ozone Maintenance Plans for Beauregard, St. Mary, Lafayette, and Grant Parishes and the New Orleans Consolidated Metropolitan Statistical Area
> **Rule** · Direct final rule. · Published 2003-04-21 · Effective 2003-06-20 · 68 FR 19373
## Document
- **Document number:** 03-9619
- **Category:** air-emissions
- **Federal Register citation:** 68 FR 19373
- **CFR reference:** 40 CFR 52
- **Publication date:** 2003-04-21
- **Effective date:** 2003-06-20
- **State:** LA
- **EPA docket:** LA-56-1-7491a
## Abstract

The EPA is taking direct final action to approve a revision to the Louisiana SIP for Beauregard, St. Mary, Lafayette, and Grant Parishes and the New Orleans Consolidated Metropolitan Statistical Area (CMSA) ozone maintenance areas, submitted by the State of Louisiana on December 4, 2000. The revision involves changes to the approved contingency plans. This rulemaking action is being taken under sections 110, 301 and part D of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/04/21/03-9619/approval-and-promulgation-of-implementation-plans-louisiana-revision-to-the-ozone-maintenance-plans)
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