Federal Register
2,206 documents (filtered)
Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District
Environmental Protection Agency
CFR: 40 CFR 52
Sep 12, 2025
Notice
2025-17649
Environmental Impact Statements; Notice of Availability
Environmental Protection Agency
Sep 12, 2025
Proposed Rule
2025-17528
Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Ou...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 11, 2025
Proposed Rule
2025-17518
Maryland: Final Approval of State Underground Storage Tank Program Revisions, Codification...
Environmental Protection Agency
CFR: 40 CFR 282
Sep 11, 2025
Final Rule
2025-17519
Maryland: Final Approval of State Underground Storage Tank Program Revisions, Codification...
Environmental Protection Agency
CFR: 40 CFR 282
Sep 11, 2025
Eff: Nov 10, 2025
Final Rule
2025-17541
Authorization of State Hazardous Waste Management Program Revisions: California
Environmental Protection Agency
CFR: 40 CFR 271
Sep 11, 2025
Eff: Nov 10, 2025
Proposed Rule
2025-17505
Proposed Deletion From the National Priorities List
Environmental Protection Agency
CFR: 40 CFR 300
Sep 11, 2025
Proposed Rule
2025-17520
Minnesota: Final Approval of State Underground Storage Tank Program Revisions, Codificatio...
Environmental Protection Agency
CFR: 40 CFR 282
Sep 11, 2025
Proposed Rule
2025-17498
Air Plan Revisions; Arizona; Maricopa County Air Quality Department; Volatile Organic Comp...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 11, 2025
Proposed Rule
2025-17488
Air Plan Approval; Wyoming; R-35 Wyoming Air Quality Standards and Regulations Rule Packag...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 11, 2025
Final Rule
2025-17485
Air Plan Approval; New Jersey; Memorandum of Agreement To Address NOX SIP Call Requirement...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 11, 2025
Eff: Oct 14, 2025
Proposed Rule
2025-17500
Air Plan Approval; Arizona; Maricopa County Air Quality Department; Volatile Organic Compo...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 11, 2025
Notice
2025-17563
Certain New Chemicals; Receipt and Status Information for July 2025
Environmental Protection Agency
Sep 11, 2025
Proposed Rule
2025-17502
Approval of Air Quality Implementation Plans; Arizona; Arizona Department of Environmental...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 11, 2025
Proposed Rule
2025-17499
Air Plan Approval; Montana; Regional Haze Plan for the Second Implementation Period; Prong...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 11, 2025
Proposed Rule
2025-17540
Authorization of State Hazardous Waste Management Program Revisions: California
Environmental Protection Agency
CFR: 40 CFR 271
Sep 11, 2025
Proposed Rule
2025-17501
Air Plan Revisions; Arizona; Maricopa County Air Quality Department; Particulate Matter; I...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 11, 2025
Final Rule
2025-17521
Minnesota: Final Approval of State Underground Storage Tank Program Revisions, Codificatio...
Environmental Protection Agency
CFR: 40 CFR 282
Sep 11, 2025
Eff: Nov 10, 2025
Final Rule
2025-17524
Hazardous Waste Management System; Identification and Listing of Hazardous Waste; Final Ru...
Environmental Protection Agency
CFR: 40 CFR 261
Sep 11, 2025
Eff: Sep 11, 2025
Final Rule
2025-17486
Air Plan Approval; Wyoming; R-35 Wyoming Air Quality Standards and Regulations Rule Packag...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 11, 2025
Eff: Nov 10, 2025
Air Plan Approval; Kentucky; Emissions Inventory and Nonattainment New Source Review for t...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 5, 2025
Notice
2025-17065
Delegation of Authority to the State of West Virginia To Implement and Enforce Additional ...
Environmental Protection Agency
Sep 5, 2025
Notice
2025-17079
Ambient Air Monitoring Reference and Equivalent Methods; Designation of Three New Equivale...
Environmental Protection Agency
Sep 5, 2025
Proposed Rule
2025-17052
Massachusetts: Final Authorization of State Hazardous Waste Management Program Revisions
Environmental Protection Agency
CFR: 40 CFR 271
Sep 5, 2025
Air Plan Approval; OR; Lane County Permitting Rule Revisions
Environmental Protection Agency
CFR: 40 CFR 52
Sep 5, 2025
Final Rule
2025-17053
Massachusetts: Final Authorization of State Hazardous Waste Management Program Revisions
Environmental Protection Agency
CFR: 40 CFR 271
Sep 5, 2025
Eff: Nov 4, 2025
Final Rule
2025-17060
Extension of the Attainment Date of the Coachella Valley Extreme Nonattainment Area Under ...
Environmental Protection Agency
CFR: 40 CFR 81
Sep 5, 2025
Eff: Oct 6, 2025
Final Rule
2025-17029
Withdrawals of Findings of Failure To Submit State Implementation Plan and Finding of Fail...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 5, 2025
Eff: Sep 5, 2025
Final Rule
2025-17061
Air Plan Approval; California; State Implementation Plan Revision for Chico, Modesto and S...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 5, 2025
Eff: Oct 6, 2025
Final Rule
2025-17045
Approval of Air Quality Implementation Plans; California; Regional Haze State Implementati...
Environmental Protection Agency
CFR: 40 CFR 52
Sep 5, 2025
Eff: Oct 6, 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.