Federal Register
2,206 documents (filtered)
Utah; Northern Wasatch Front; 2015 8-Hour Ozone Nonattainment Area Boundary Expansion and ...
Environmental Protection Agency
CFR: 40 CFR 81
Sep 25, 2025
Notice
2025-18605
Agency Information Collection Activities; Submission to the Office of Management and Budge...
Environmental Protection Agency
Sep 25, 2025
Notice
2025-18604
Agency Information Collection Activities; Submission to the Office of Management and Budge...
Environmental Protection Agency
Sep 25, 2025
Notice
2025-18603
Agency Information Collection Activities; Submission to the Office of Management and Budge...
Environmental Protection Agency
Sep 25, 2025
Proposed Rule
2025-18635
Air Plan Approval; Virginia; Revision to the Regulatory Definition of Volatile Organic Com...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 25, 2025
Proposed Rule
2025-18629
Air Plan Approval; Oregon; 2024 Vehicle Inspection Program Updates
Environmental Protection Agency
CFR: 40 CFR 52
Sep 25, 2025
Final Rule
2025-18568
Air Plan Approval; Missouri; Definitions and Common Reference Tables
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 62
Sep 25, 2025
Eff: Oct 27, 2025
Final Rule
2025-18599
Air Plan Approval; Washington; Regional Haze State Implementation Plan for the Second Impl...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 25, 2025
Eff: Oct 27, 2025
Final Rule
2025-18636
Finding of Failure To Attain the 1997 8-Hour Ozone Standards; California; San Joaquin Vall...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 25, 2025
Eff: Oct 27, 2025
Final Rule
2025-18611
Air Plan Approval; West Virginia; 2024 Amendments to West Virginia's Ambient Air Quality S...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 25, 2025
Eff: Oct 27, 2025
Proposed Rule
2025-18594
Air Plan Approval; Indiana; Huntington County 2010 Sulfur Dioxide Redesignation and Mainte...
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 81
Sep 25, 2025
Proposed Rule
2025-18652
Air Plan Approval; Ohio; Volatile Organic Compounds RFD Beaufort
Environmental Protection Agency
CFR: 40 CFR 52
Sep 25, 2025
Final Rule
2025-18637
Air Plan Approval; California; San Joaquin Valley 1-Hour Ozone Area; Maintenance Plan and ...
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 81
Sep 25, 2025
Eff: Oct 27, 2025
Final Rule
2025-18626
Air Plan Approval; Delaware; Motor Vehicle Inspection and Maintenance Program Certificatio...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 25, 2025
Eff: Oct 27, 2025
Proposed Rule
2025-18431
Procedures for Chemical Risk Evaluation Under the Toxic Substances Control Act (TSCA)
Environmental Protection Agency
CFR: 40 CFR 702
Sep 23, 2025
Final Rule
2025-18287
Environmental Protection Agency Acquisition Regulation (EPAAR); Special Contracting Method...
Environmental Protection Agency
CFR: 48 CFR 1517
Sep 22, 2025
Eff: Dec 2, 2025
Notice
2025-18333
Spring 2025 Unified Agenda of Regulatory and Deregulatory Actions
Environmental Protection Agency
CFR: 40 CFR null
Sep 22, 2025
Proposed Rule
C1-2025-17923
Reconsideration of the Greenhouse Gas Reporting Program
Environmental Protection Agency
CFR: 40 CFR 98
Sep 22, 2025
Notice
2025-18190
Proposed Information Collection Request; Comment Request
Environmental Protection Agency
Sep 19, 2025
Notice
2025-18175
Environmental Impact Statements; Notice of Availability
Environmental Protection Agency
Sep 19, 2025
Notice
2025-18170
Octamethylcyclotetrasiloxane (D4); Draft Risk Evaluation; Science Advisory Committee on Ch...
Environmental Protection Agency
Sep 19, 2025
Final Rule
2025-18062
Air Plan Approval; Guam; Guam Environmental Protection Agency; New Source Review
Environmental Protection Agency
CFR: 40 CFR 52
Sep 18, 2025
Eff: Oct 20, 2025
Final Rule
2025-18067
Air Plan Approval; Guam; Clean Data Determination for the Piti-Cabras Nonattainment Area f...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 18, 2025
Eff: Oct 20, 2025
Proposed Rule
2025-18111
Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025...
Environmental Protection Agency
CFR: 40 CFR 80, 40 CFR 1090
Sep 18, 2025
Proposed Rule
2025-18056
Hawaii: Final Approval of State Underground Storage Tank Program Revisions, Codification, ...
Environmental Protection Agency
CFR: 40 CFR 281, 40 CFR 282
Sep 18, 2025
Final Rule
2025-18057
Hawaii: Amendment to Approval of State Underground Storage Tank Program Revisions, Codific...
Environmental Protection Agency
CFR: 40 CFR 282
Sep 18, 2025
Eff: Nov 17, 2025
Final Rule
2025-17948
Trichloroethylene; Regulation Under the Toxic Substances Control Act (TSCA); Compliance Da...
Environmental Protection Agency
CFR: 40 CFR 751
Sep 17, 2025
Eff: Sep 15, 2025
Notice
2025-17967
Octamethylcyclotetrasiloxane (Cyclotetrasiloxane, 2,2,4,4,6,6,8,8-octamethyl-) (D4); Draft...
Environmental Protection Agency
Sep 17, 2025
Proposed Rule
2025-17923
Reconsideration of the Greenhouse Gas Reporting Program
Environmental Protection Agency
CFR: 40 CFR 98
Sep 16, 2025
Final Rule
2025-17769
Arizona Underground Injection Control (UIC) Program; Class I-VI Primacy
Environmental Protection Agency
CFR: 40 CFR 147
Sep 15, 2025
Eff: Oct 15, 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.