Louisiana's SO2 plan gets EPA thumbs-up nod.
Published Date: 4/9/2025
Proposed Rule
Summary
The EPA is proposing to approve Louisiana’s plan showing it won’t send too much sulfur dioxide pollution to other states, keeping the air cleaner for everyone. This affects Louisiana and its neighbors by helping meet air quality rules set in 2010. People can share their thoughts by May 9, 2025, but no big costs or changes are expected right now.
Analyzed Economic Effects
3 provisions identified: 3 benefits, 0 costs, 0 mixed.
EPA proposes to approve Louisiana's SO2 "good neighbor" plan
If you live in Louisiana or a neighboring State, the EPA is proposing to approve Louisiana’s State Implementation Plan (SIP) for the 2010 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS). The EPA found monitors within 50 kilometers of State borders have design values below the 75 parts per billion (ppb) standard for 2019–2023 and proposes that Louisiana will not significantly contribute to nonattainment or interfere with maintenance in other States.
No new federal SO2 controls expected for Louisiana sources
The EPA proposes to approve Louisiana’s SIP and states this action does not impose requirements beyond State law. The agency focused on larger point sources (those reporting over 100 tons per year of SO2) within about 50 kilometers of State borders and concluded those sources are not contributing to out-of-state SO2 problems, so EPA is not proposing additional federal controls in this action.
Approval excludes Indian reservation lands and tribal jurisdiction
The proposed SIP approval does not apply on any Indian reservation land or in areas where a Tribe has jurisdiction. The EPA states the proposed rule does not have Tribal implications and will not impose substantial direct costs on Tribal governments or preempt Tribal law.
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Key Dates
Department and Agencies
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