Data / Federal rules / 2025-12801

Air Plan Approval; Louisiana; Nonattainment Plan for the Evangeline Parish 2010 Sulfur Dioxide Primary National Ambient Air Quality Standard Nonattainment Area

The Environmental Protection Agency published this final rule in the Federal Register on July 10, 2025. It took effect on August 11, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is approving the State Implementation Plan (SIP) revision which Louisiana submitted to EPA on April 2, 2025, for attaining the Evangeline Parish 2010 1-hour sulfur dioxide (SO<INF>2</INF>) primary national ambient air quality standard (NAAQS) nonattainment area. EPA is finalizing approval of the following Clean Air Act (CAA) SIP elements: The attainment demonstration for the SO<INF>2</INF> NAAQS, which includes an Agreed Order on Consent (AOC) for the Cabot Corporation's Ville Platte Plant (Cabot) facility; the reasonable further progress (RFP) plan; the reasonably available control measures (RACM) and reasonably available control technology (RACT) demonstration; the emission inventories; and the contingency measures. The State has demonstrated that its current Nonattainment New Source Review (NNSR) program covers this NAAQS; therefore, no revision to the SIP is required for the NNSR element.

Key facts

Document number: 2025-12801
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: July 10, 2025
Takes effect: August 11, 2025
Dates: This rule is effective on August 11, 2025.
Docket: EPA-R06-OAR-2025-0173; FRL-12753-02-R6
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Sulfur oxides
Pages: 3

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in July 2025

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