Federal Register
677 documents (filtered)
Final Rule
2025-08091
Air Plan Approval; Alabama; Administrative Corrections and VOC Definition
Environmental Protection Agency
CFR: 40 CFR 52
May 9, 2025
Eff: Jun 9, 2025
Final Rule
2025-07846
Air Plan Approval; WA; Southwest Clean Air Agency; Revisions to Excess Emissions, Startup,...
Environmental Protection Agency
CFR: 40 CFR 52
May 9, 2025
Eff: Jun 9, 2025
Final Rule
2025-08084
Adequacy Status of the Motor Vehicle Emissions Budget in the Fairbanks North Star Borough,...
Environmental Protection Agency
CFR: 40 CFR 52
May 8, 2025
Eff: May 23, 2025
Final Rule
2025-07938
Air Plan Approval; Colorado; Interim Final Determination To Stay and Defer Sanctions in th...
Environmental Protection Agency
CFR: 40 CFR 52
May 8, 2025
Eff: May 8, 2025
Final Rule
2025-08087
Air Quality Plans; California; Tehama County Air Pollution Control District; New Source Re...
Environmental Protection Agency
CFR: 40 CFR 52
May 8, 2025
Eff: Jun 9, 2025
Final Rule
2025-07861
Air Plan Approval; Ohio; Nitrogen Oxide Budget Program
Environmental Protection Agency
CFR: 40 CFR 52
May 8, 2025
Eff: Jul 7, 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
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
2025-06610
Air Plan Approval; Connecticut; State Implementation Plan Revisions Required by the 2015 O...
Environmental Protection Agency
CFR: 40 CFR 52
Apr 22, 2025
Eff: May 22, 2025
Final Rule
2025-06618
Air Plan Approval; Wisconsin; Revised Format for Materials Incorporated by Reference
Environmental Protection Agency
CFR: 40 CFR 52
Apr 22, 2025
Eff: Apr 22, 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
Final Rule
2025-06247
Air Plan Approval; Washington; Spokane Regional Clean Air Agency, General Air Quality Regu...
Environmental Protection Agency
CFR: 40 CFR 52
Apr 16, 2025
Eff: May 16, 2025
Final Rule
2025-06320
Modification to 2022 National Pollutant Discharge Elimination System (NPDES) Construction ...
Environmental Protection Agency
CFR: 40 CFR 122
Apr 15, 2025
Eff: Apr 8, 2025
Final Rule
2025-05928
Air Plan Approval; Texas; Vehicle Inspection and Maintenance Plan for Bexar County
Environmental Protection Agency
CFR: 40 CFR 52
Apr 8, 2025
Eff: May 8, 2025
Final Rule
2025-05912
Tiafenacil; Pesticide Tolerances
Environmental Protection Agency
CFR: 40 CFR 180
Apr 7, 2025
Eff: Apr 7, 2025
Final Rule
2025-05909
Choline Chloride in Pesticide Formulations; Exemption From the Requirement of a Tolerance
Environmental Protection Agency
CFR: 40 CFR 180
Apr 7, 2025
Eff: Apr 7, 2025
Final Rule
2025-05913
Air Plan Approval; District of Columbia, Maryland, Virginia; Determination of Attainment b...
Environmental Protection Agency
CFR: 40 CFR 52
Apr 4, 2025
Eff: May 5, 2025
Final Rule
2025-05372
Approval of Source-Specific Air Quality Implementation Plan; New York; Lehigh Cement Compa...
Environmental Protection Agency
CFR: 40 CFR 52
Apr 3, 2025
Eff: May 5, 2025
Final Rule
2025-05641
Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulatio...
Environmental Protection Agency
CFR: 40 CFR 751
Apr 2, 2025
Final Rule
2025-05376
Interim Final Determination To Defer Sanctions, Placer County Air Pollution Control Distri...
Environmental Protection Agency
CFR: 40 CFR 52
Apr 2, 2025
Eff: Apr 2, 2025
Final Rule
2025-05378
Air Plan Approval; Connecticut; Approval of State Implementation Plan Requirements for the...
Environmental Protection Agency
CFR: 40 CFR 52
Apr 1, 2025
Eff: May 1, 2025
Final Rule
2025-05339
Partial Administrative Stay of National Emission Standards for Hazardous Air Pollutants: I...
Environmental Protection Agency
CFR: 40 CFR 63
Mar 31, 2025
Eff: Mar 31, 2025
Final Rule
2025-05173
Pseudomonas Oryzihabitans Strain SYM23945; Exemption From the Requirement of a Tolerance
Environmental Protection Agency
CFR: 40 CFR 180
Mar 27, 2025
Eff: Mar 27, 2025
Final Rule
2025-05157
Interim Final Determination To Stay or Defer Sanctions; California; Antelope Valley Air Qu...
Environmental Protection Agency
CFR: 40 CFR 52
Mar 26, 2025
Eff: Mar 26, 2025
Final Rule
2025-04910
Air Plan Approval; New York; Knowlton Technologies LLC
Environmental Protection Agency
CFR: 40 CFR 52
Mar 24, 2025
Eff: Apr 23, 2025
Final Rule
2025-04790
Interim Final Determination To Stay and Defer Sanctions; California; Sacramento Metro Area
Environmental Protection Agency
CFR: 40 CFR 52
Mar 21, 2025
Eff: Mar 21, 2025
Final Rule
2025-04712
Pyridate; Pesticide Tolerances
Environmental Protection Agency
CFR: 40 CFR 180
Mar 21, 2025
Eff: Mar 21, 2025
Final Rule
2025-04707
Potassium Polyaspartate in Pesticide Formulations; Exemption From the Requirement of a Tol...
Environmental Protection Agency
CFR: 40 CFR 180
Mar 20, 2025
Eff: Mar 20, 2025
Final Rule
2025-04751
Extension of Effective Date for Removal of Gasoline Volatility Waiver for Ohio and Nine Co...
Environmental Protection Agency
CFR: 40 CFR 1090
Mar 20, 2025
Eff: Mar 19, 2025
Final Rule
2025-04724
Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for 2024 Data
Environmental Protection Agency
CFR: 40 CFR 98
Mar 20, 2025
Eff: Mar 20, 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.