Data / Federal rules / 2025-07055
Air Plan Approval; Minnesota; Revision to Taconite Federal Implementation Plan
The Environmental Protection Agency published this proposed rule in the Federal Register on April 24, 2025. Comments closed on June 10, 2025.
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What the agency says
The Environmental Protection Agency (EPA) is proposing to modify nitrogen oxide (NO<INF>X</INF>) emission limits for the indurating furnace at United States Steel's (U.S. Steel's) Keetac taconite facility in Keewatin, Minnesota (Keetac), to satisfy the requirement for best available retrofit technology (BART) at taconite facilities. EPA is proposing this action pursuant to sections 110 and 169A of the Clean Air Act (CAA).
Key facts
- Document number
- 2025-07055
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Environmental Protection Agency
- Published
- April 24, 2025
- Comments due
- June 10, 2025
- Dates
- Comments must be received on or before June 10, 2025.
- Docket
- EPA-R05-OAR-2024-0216; FRL-12599-01-R5
- Code of Federal Regulations
- 40 CFR 52
- Topics
- Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen oxides; Reporting and recordkeeping requirements
- Pages
- 7
Other documents from the Environmental Protection Agency
Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in April 2025
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.