Data / Federal rules / 2024-29575

Designation of Areas for Air Quality Planning Purposes; Redesignation Request and Associated Maintenance Plan for Whatcom County, WA 2010 SO2 Nonattainment Area

The Environmental Protection Agency published this final rule in the Federal Register on December 17, 2024. It took effect on January 16, 2025.

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What the agency says

On July 25, 2024, the State of Washington (WA) submitted a request for the Environmental Protection Agency (EPA) to redesignate to attainment a portion of Whatcom County immediately surrounding the now permanently closed aluminum smelter, Intalco Aluminum LLC, which the EPA designated nonattainment for the 2010 1-hour primary sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS). Washington also submitted a request for the EPA to approve a State Implementation Plan (SIP) revision containing a maintenance plan for the area. The EPA is taking the following final actions: we have determined that the Whatcom County (partial) SO<INF>2</INF> nonattainment area (Whatcom County area or area) is attaining the 2010 1-hour primary SO<INF>2</INF> NAAQS; we are approving Washington's plan for maintaining attainment of the 2010 1- hour primary SO<INF>2</INF> NAAQS in the area; and we are redesignating the Whatcom County area to attainment for the 2010 1-hour primary SO<INF>2</INF> NAAQS.

Key facts

Document number: 2024-29575
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: December 17, 2024
Takes effect: January 16, 2025
Dates: This final rule is effective January 16, 2025.
Docket: EPA-R10-OAR-2024-0371; FRL-12159-02-R10
Code of Federal Regulations: 40 CFR 52; 40 CFR 81
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Reporting and recordkeeping requirements
Pages: 6

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 December 2024

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