Federal Register

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Final Rule 2025-07255
Air Plan Approval; Pennsylvania; Redesignation of the Allegheny County Nonattainment Area ...
Environmental Protection Agency CFR: 40 CFR 52, 40 CFR 81
Apr 28, 2025
Eff: May 28, 2025
Final Rule 2025-07261
Air Plan Approval; Kansas; Annual Emission Inventory and Fees
Environmental Protection Agency CFR: 40 CFR 52, 40 CFR 70
Apr 28, 2025
Eff: May 28, 2025
Apr 25, 2025
Proposed Rule 2025-07055
Air Plan Approval; Minnesota; Revision to Taconite Federal Implementation Plan
Environmental Protection Agency CFR: 40 CFR 52
Apr 24, 2025
Apr 22, 2025
Eff: Apr 22, 2025
Apr 22, 2025
Eff: May 22, 2025
Apr 21, 2025
Eff: Jan 23, 2024
Proposed Rule 2025-06617
Air Plan Approval; Indiana; Indiana NOX Emissions Monitoring
Environmental Protection Agency CFR: 40 CFR 52
Apr 21, 2025
Apr 18, 2025
Apr 18, 2025
Final Rule 2025-06604
Air Plan Approval; Ohio; Volatile Organic Compounds
Environmental Protection Agency CFR: 40 CFR 52
Apr 17, 2025
Eff: May 19, 2025
Apr 16, 2025
Eff: May 16, 2025
Apr 15, 2025
Eff: Apr 8, 2025
Apr 11, 2025
Apr 9, 2025
Apr 8, 2025
Eff: May 8, 2025
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The Federal Register is the daily journal of the U.S. government. Proposed rules invite public comment before becoming law. Final rules have completed the comment process and are (or will become) legally binding. FRTracker extracts obligations from these documents—the specific things people or organizations must, may, or must not do.