Federal Register
540 documents (filtered)
Proposed Rule
2025-12800
National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklah...
Environmental Protection Agency
CFR: 40 CFR 61, 40 CFR 63
Jul 10, 2025
Proposed Rule
2025-12856
Finding of Failure To Attain the 1997 8-Hour Ozone Standards; California; San Joaquin Vall...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 10, 2025
Proposed Rule
2025-12866
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Polluta...
Environmental Protection Agency
CFR: 40 CFR 62
Jul 10, 2025
Air Plan Approval; California; Mojave Desert Air Quality Management District; Definition o...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 10, 2025
Proposed Rule
2025-12704
Significant New Use Rules on Certain Chemical Substances (23-2.5e); Withdrawal
Environmental Protection Agency
CFR: 40 CFR 721
Jul 9, 2025
Proposed Rule
2025-12520
New Source Performance Standards; Delegation of Authority to Oklahoma
Environmental Protection Agency
CFR: 40 CFR 60
Jul 7, 2025
Air Plan Approval; Oklahoma; Revisions to Air Pollution Control Rules
Environmental Protection Agency
CFR: 40 CFR 52
Jul 7, 2025
Proposed Rule
2025-12564
Establishment of Public Docket and Listening Sessions on Implementation Challenges Associa...
Environmental Protection Agency
CFR: 40 CFR 121
Jul 7, 2025
Proposed Rule
2025-12515
Air Plan Approval; Connecticut; 2014 and 2017 Periodic Emissions Inventory for 2008 8-Hour...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 7, 2025
Proposed Rule
2025-12404
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various ...
Environmental Protection Agency
CFR: 40 CFR 174, 40 CFR 180
Jul 3, 2025
Proposed Rule
2025-11825
Air Plan Approval; Missouri; Control of Sulfur Dioxide Emissions and Approval and Promulga...
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 62
Jun 27, 2025
Proposed Rule
2025-11821
Air Plan Approval; Missouri; Definitions and Common Reference Tables
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 62
Jun 27, 2025
Proposed Rule
2025-11341
New Source Performance Standards and National Emission Standards for Hazardous Air Polluta...
Environmental Protection Agency
CFR: 40 CFR 60, 40 CFR 61
Jun 23, 2025
Proposed Rule
2025-11413
Air Plan Approval; California; San Joaquin Valley 1-Hour Ozone Area; Maintenance Plan and ...
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 81
Jun 23, 2025
Proposed Rule
2025-11326
Air Plan Approval; Guam; Clean Data Determination for the Piti-Cabras Nonattainment Area f...
Environmental Protection Agency
CFR: 40 CFR 52
Jun 20, 2025
Proposed Rule
2025-11304
Finding of Failure To Attain for the Missouri Portion of the St. Louis Nonattainment Area ...
Environmental Protection Agency
CFR: 40 CFR 81
Jun 20, 2025
Proposed Rule
2025-11281
Air Plan Approval; California; Eastern Kern Air Pollution Control District; Stationary Com...
Environmental Protection Agency
CFR: 40 CFR 52
Jun 20, 2025
Proposed Rule
2025-11272
Air Plan Approval; Texas and Oklahoma; Texas Regional Haze Plans for the First and Second ...
Environmental Protection Agency
CFR: 40 CFR 52
Jun 20, 2025
Proposed Rule
2025-11263
Air Plan Approval; Colorado; Serious Attainment Plan RACT Requirements for the 2008 8-Hour...
Environmental Protection Agency
CFR: 40 CFR 52
Jun 18, 2025
Proposed Rule
2025-11268
Finding of Failure To Attain; Air Plan Approval; Indiana; Huntington County Sulfur Dioxide...
Environmental Protection Agency
CFR: 40 CFR 52
Jun 18, 2025
Proposed Rule
2025-11264
Air Quality Plans; Guam; Guam Environmental Protection Agency; New Source Review
Environmental Protection Agency
CFR: 40 CFR 52
Jun 18, 2025
Proposed Rule
2025-11250
Air Plan Approval; Utah; Interstate Transport of Air Pollution for the 2008 8-Hour Ozone N...
Environmental Protection Agency
CFR: 40 CFR 52
Jun 18, 2025
Proposed Rule
2025-11259
Air Plan Approval; Indiana; Regional Haze Plan for the Second Implementation Period
Environmental Protection Agency
CFR: 40 CFR 52
Jun 18, 2025
Proposed Rule
2025-11270
Air Plan Approval; Texas; Interstate Transport Requirements for the 2010 SO2 NAAQS
Environmental Protection Agency
CFR: 40 CFR 52
Jun 18, 2025
Proposed Rule
2025-11261
Approval of Air Quality Implementation Plans; California; Regional Haze State Implementati...
Environmental Protection Agency
CFR: 40 CFR 52
Jun 18, 2025
Proposed Rule
2025-11257
Air Plan Approval; Michigan; Second Period Regional Haze Plan
Environmental Protection Agency
CFR: 40 CFR 52
Jun 18, 2025
Proposed Rule
2025-10992
National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Uti...
Environmental Protection Agency
CFR: 40 CFR 63
Jun 17, 2025
Proposed Rule
2025-10991
Repeal of Greenhouse Gas Emissions Standards for Fossil Fuel-Fired Electric Generating Uni...
Environmental Protection Agency
CFR: 40 CFR 60
Jun 17, 2025
Proposed Rule
2025-11128
Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025...
Environmental Protection Agency
CFR: 40 CFR 80, 40 CFR 1090
Jun 17, 2025
Proposed Rule
2025-10957
Texas Underground Injection Control (UIC) Program; Class VI Primacy
Environmental Protection Agency
CFR: 40 CFR 147
Jun 17, 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.