Data / Federal rules / 2026-09619

Air Plan Approval; Montana; Revisions to Western Sugar Stipulation

The Environmental Protection Agency published this final rule in the Federal Register on May 14, 2026. It took effect on June 15, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is approving revisions to the Montana State Implementation Plan (SIP). These revisions specifically address sulfur dioxide (SO<INF>2</INF>) emission limits and associated requirements related to the Western Sugar Cooperative facility in Billings, Montana. The EPA is taking this action pursuant to the Clean Air Act (CAA).

Key facts

Document number: 2026-09619
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: May 14, 2026
Takes effect: June 15, 2026
Dates: This rule is effective on June 15, 2026.
Docket: EPA-R08-OAR-2025-2070; FRL-13177-02-R8
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Lead; Nitrogen oxides; Ozone; Particulate matter; Reporting and recordkeeping requirements; Sulfur oxides; Volatile organic compounds
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 May 2026

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.