Federal Register
540 documents (filtered)
Proposed Rule
2025-06608
Air Plan Approval; West Virginia; Regional Haze State Implementation Plan for the Second I...
Environmental Protection Agency
CFR: 40 CFR 52
Apr 18, 2025
Proposed Rule
2025-05927
Air Plan Approval; Louisiana; Interstate Transport Requirements for the 2010 SO2 NAAQS
Environmental Protection Agency
CFR: 40 CFR 52
Apr 9, 2025
Proposed Rule
2025-05910
Air Plan Approval; Connecticut; 2017 Base Year Emissions Inventory for the 2015 8-Hour Ozo...
Environmental Protection Agency
CFR: 40 CFR 52
Apr 7, 2025
Proposed Rule
2025-05915
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various ...
Environmental Protection Agency
CFR: 40 CFR 174, 40 CFR 180
Apr 7, 2025
Proposed Rule
2025-05921
Air Plan Approval; Pennsylvania; Redesignation Request and Associated Maintenance Plan for...
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 81
Apr 7, 2025
Proposed Rule
2025-05480
Significant New Use Rules on Certain Chemical Substances (24-4.5e)
Environmental Protection Agency
CFR: 40 CFR 721
Apr 4, 2025
Air Plan Revision; California; Placer County Air Pollution Control District; New Source Re...
Environmental Protection Agency
CFR: 40 CFR 52
Apr 2, 2025
Proposed Rule
2025-05369
Air Plan Approval; California; State Implementation Plan Revision for Chico, Modesto, and ...
Environmental Protection Agency
CFR: 40 CFR 52
Mar 31, 2025
Proposed Rule
2025-05385
Section 610 Review of National Emission Standards for Hazardous Air Pollutants for Brick a...
Environmental Protection Agency
CFR: 40 CFR 63
Mar 31, 2025
Proposed Rule
2025-05382
Air Plan Approval; Florida; Revisions to Stationary Sources-Removal of Clean Air Interstat...
Environmental Protection Agency
CFR: 40 CFR 52
Mar 28, 2025
Proposed Rule
2025-05156
Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Sourc...
Environmental Protection Agency
CFR: 40 CFR 52
Mar 26, 2025
Review of New Source Performance Standards for Stationary Combustion Turbines and Stationa...
Environmental Protection Agency
CFR: 40 CFR 60
Mar 25, 2025
Eff: Dec 13, 2024
Proposed Rule
2025-04906
Air Plan Approval; ID; Regional Haze Plan for the Second Implementation Period
Environmental Protection Agency
CFR: 40 CFR 52
Mar 24, 2025
Proposed Rule
2025-04649
WOTUS Notice: The Final Response to SCOTUS; Establishment of a Public Docket; Request for ...
Defense Department, Engineers Corps
CFR: 33 CFR 328, 40 CFR 120
Mar 24, 2025
Proposed Rule
2025-04908
Air Plan Approval; AK, Fairbanks North Star Borough; 2006 24-Hour PM2.5 Serious Area and 1...
Environmental Protection Agency
CFR: 40 CFR 52
Mar 24, 2025
Eff: Jan 8, 2025
Proposed Rule
2025-04791
Determination of Attainment by the Attainment Date; 2008 8-Hour Ozone Standards; Californi...
Environmental Protection Agency
CFR: 40 CFR 52
Mar 21, 2025
Proposed Rule
2025-04653
National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sour...
Environmental Protection Agency
CFR: 40 CFR 63
Mar 20, 2025
Eff: Jan 22, 2025
Proposed Rule
2025-04039
Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Reopening of Com...
Environmental Protection Agency
CFR: 40 CFR 52
Mar 18, 2025
Eff: Jan 17, 2025
Proposed Rule
2025-04035
Extension of the Attainment Date of the Coachella Valley Extreme Nonattainment Area Under ...
Environmental Protection Agency
CFR: 40 CFR 52
Mar 17, 2025
Proposed Rule
2025-03871
Receipt of a Pesticide Petition Filed for Residues of Pesticide Chemicals in or on Various...
Environmental Protection Agency
CFR: 40 CFR 180
Mar 11, 2025
Proposed Rule
2025-03608
Air Plan Approval; Alabama; Administrative Corrections and VOC Definition
Environmental Protection Agency
CFR: 40 CFR 52
Mar 7, 2025
Proposed Rule
2025-03515
C.I. Pigment Violet 29 (PV29); Regulation Under the Toxic Substances Control Act (TSCA); R...
Environmental Protection Agency
CFR: 40 CFR 751
Mar 4, 2025
Eff: Jan 14, 2025
Proposed Rule
2025-03196
Air Plan Approval; Ohio; Regional Haze Plan for the Second Implementation Period
Environmental Protection Agency
CFR: 40 CFR 52
Feb 28, 2025
Eff: Aug 30, 2024
Proposed Rule
2025-03144
Review of National Emission Standards for Hazardous Air Pollutants for Polyether Polyols P...
Environmental Protection Agency
CFR: 40 CFR 63
Feb 26, 2025
Eff: Dec 27, 2024
Proposed Rule
2025-02913
Two Proposed Rules Published by the Environmental Protection Agency With Comment Periods T...
Environmental Protection Agency
CFR: 40 CFR 136, 40 CFR 372
Feb 21, 2025
Eff: Jan 17, 2025
Proposed Rule
2025-02788
Chlorpyrifos; Tolerance Revocation; Reopening of the Comment Period
Environmental Protection Agency
CFR: 40 CFR 180
Feb 20, 2025
Eff: Feb 10, 2025
Proposed Rule
2025-02856
Pesticides; Petition Seeking Rulemaking To Modify Labeling Requirements for Pesticides and...
Environmental Protection Agency
CFR: 40 CFR 180
Feb 20, 2025
Eff: Jan 21, 2025
Proposed Rule
2025-00685
National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sour...
Environmental Protection Agency
CFR: 40 CFR 63
Jan 22, 2025
Proposed Rule
2025-01101
Air Plan Disapproval; West Virginia; Regional Haze State Implementation Plan for the Secon...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 21, 2025
Proposed Rule
2025-00438
Air Plan Partial Approval and Partial Disapproval; South Carolina; Minor Source Permit Pro...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 21, 2025
Understanding This Page
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.