Federal Register
677 documents (filtered)
Final Rule
2025-00848
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From El...
Environmental Protection Agency
CFR: 40 CFR 9, 40 CFR 257
Jan 16, 2025
Eff: May 16, 2025
Final Rule
2024-31701
Air Plan Approval; Arizona; Maricopa County Air Quality Department
Environmental Protection Agency
CFR: 40 CFR 52
Jan 16, 2025
Eff: Feb 18, 2025
Final Rule
2025-00380
Air Plan Approval; Montana; Missoula, Montana Oxygenated Fuels Program Removal, Carbon Mon...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 16, 2025
Eff: Feb 18, 2025
Final Rule
2025-00464
Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under t...
Environmental Protection Agency
CFR: 40 CFR 141
Jan 16, 2025
Eff: Jan 16, 2025
Final Rule
2025-00946
Reference Measurement Principle and Calibration Procedure for the Measurement of Ozone in ...
Environmental Protection Agency
CFR: 40 CFR 50
Jan 16, 2025
Eff: Jan 16, 2025
Final Rule
2025-00659
New Source Performance Standards for Greenhouse Gas Emissions From New, Modified, and Reco...
Environmental Protection Agency
CFR: 40 CFR 60
Jan 15, 2025
Eff: Jan 15, 2025
Final Rule
2024-31218
Fuels Regulatory Streamlining Sampling and Testing Updates
Environmental Protection Agency
CFR: 40 CFR 1090
Jan 15, 2025
Eff: Jul 1, 2025
Final Rule
2025-00433
Excess Emissions During Periods of Startup, Shutdown, and Malfunction; Partial Withdrawals...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 10, 2025
Eff: Jan 10, 2025
Final Rule
2024-31028
Air Plan Revisions; Arizona; Maricopa County Air Quality Department
Environmental Protection Agency
CFR: 40 CFR 52
Jan 10, 2025
Eff: Feb 10, 2025
Final Rule
2025-00206
Civil Monetary Penalty Inflation Adjustment
Environmental Protection Agency
CFR: 40 CFR 19
Jan 8, 2025
Eff: Jan 8, 2025
Final Rule
2024-30649
Interim Final Determination To Defer Sanctions; AK, Fairbanks North Star Borough
Environmental Protection Agency
CFR: 40 CFR 52
Jan 8, 2025
Eff: Jan 8, 2025
Final Rule
2024-31226
Review of Final Rule Reclassification of Major Sources as Area Sources Under Section 112 o...
Environmental Protection Agency
CFR: 40 CFR 63
Jan 7, 2025
Eff: Jan 7, 2025
Final Rule
2024-31223
National Emission Standards for Hazardous Air Pollutants: National Perchloroethylene Air E...
Environmental Protection Agency
CFR: 40 CFR 63
Jan 7, 2025
Eff: Jan 7, 2025
Final Rule
2024-31464
Implementing Statutory Addition of Certain Per- and Polyfluoroalkyl Substances (PFAS) to T...
Environmental Protection Agency
CFR: 40 CFR 372
Jan 6, 2025
Eff: Feb 5, 2025
Final Rule
2024-30964
Significant New Use Rules on Certain Chemical Substances (19-5.F)
Environmental Protection Agency
CFR: 40 CFR 9, 40 CFR 721
Jan 6, 2025
Eff: Mar 7, 2025
Final Rule
2024-31396
Air Plan Revisions; California; Feather River Air Quality Management District
Environmental Protection Agency
CFR: 40 CFR 52
Dec 31, 2024
Eff: Jan 30, 2025
Final Rule
2024-30513
Federal Implementation Plan for Nonattainment New Source Review Program; Mojave Desert Air...
Environmental Protection Agency
CFR: 40 CFR 52
Dec 30, 2024
Eff: Feb 28, 2025
Final Rule
2024-30506
Air Plan Approval; Illinois; Alton Township 2010 Sulfur Dioxide Redesignation and Maintena...
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 81
Dec 30, 2024
Eff: Jan 29, 2025
Final Rule
2024-30536
Air Plan Approval; WA; Excess Emissions, Startup, Shutdown, and Malfunction Revisions, Ene...
Environmental Protection Agency
CFR: 40 CFR 52
Dec 27, 2024
Eff: Jan 27, 2025
Final Rule
2024-30729
Air Plan Approval; Indiana; Update to CFR References
Environmental Protection Agency
CFR: 40 CFR 52
Dec 27, 2024
Eff: Jan 27, 2025
Final Rule
2024-30695
Air Plan Approval; Revisions to Colorado Common Provisions Regulation
Environmental Protection Agency
CFR: 40 CFR 52
Dec 27, 2024
Eff: Jan 27, 2025
Final Rule
2024-30741
Air Plan Approval; KY; Revisions to Jefferson County Control of Open Burning
Environmental Protection Agency
CFR: 40 CFR 52
Dec 27, 2024
Eff: Jan 27, 2025
Final Rule
2024-30800
Outer Continental Shelf Air Regulations; Amendment to State Requirements Incorporated by R...
Environmental Protection Agency
CFR: 40 CFR 55
Dec 27, 2024
Eff: Jan 27, 2025
Final Rule
2024-30581
Ethiprole; Pesticide Tolerances
Environmental Protection Agency
CFR: 40 CFR 180
Dec 27, 2024
Eff: Dec 27, 2024
Final Rule
2024-30535
Partial Approval, Partial Disapproval and Promulgation of State Plans for Designated Facil...
Environmental Protection Agency
CFR: 40 CFR 62
Dec 27, 2024
Eff: Jan 27, 2025
Final Rule
2024-29463
Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxi...
Environmental Protection Agency
CFR: 40 CFR 50
Dec 27, 2024
Eff: Jan 27, 2025
Final Rule
2024-30583
Determination of Attainment by the Attainment Date; Michigan; St. Clair 2010 Sulfur Dioxid...
Environmental Protection Agency
CFR: 40 CFR 52
Dec 26, 2024
Eff: Jan 27, 2025
Final Rule
2024-30409
Determination To Defer Sanctions; California; Mojave Desert Air Quality Management Distric...
Environmental Protection Agency
CFR: 40 CFR 52
Dec 26, 2024
Eff: Dec 26, 2024
Final Rule
2024-30654
Air Plan Approval; Air Plan Disapproval; Delaware; Removal of Excess Emissions Provisions;...
Environmental Protection Agency
CFR: 40 CFR 52
Dec 23, 2024
Eff: Dec 23, 2024
Final Rule
2024-30025
Utah: Final Authorization of State Hazardous Waste Management Program Revisions and Incorp...
Environmental Protection Agency
CFR: 40 CFR 271, 40 CFR 272
Dec 23, 2024
Eff: Feb 21, 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.