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Data / Federal rules / Environmental Protection Agency

Environmental Protection Agency: 1,630 rules and proposed rules since January 2024

897 final rules and 733 proposed rules since January 2, 2024, 99 of them marked significant. 22 are open for comment now. Common topics: environmental protection, reporting and recordkeeping requirements, air pollution control, incorporation by reference, intergovernmental relations.

SpecStream is the live web data engine for teams and agents. It reads every rule and proposed rule in the Federal Register each morning, and this page is that reading. Name your industry once and new rules, comment deadlines and effective dates arrive in your sheet, CRM, Slack or agent as they are published.

Open for comment

DocumentTypeComments due
Public Water System Supervision Program Revision for the State of Arkansas
2026-19500
Proposed ruleOct 23
Air Plan Approval; North Carolina; Charlotte-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS
2026-19495
Proposed ruleOct 23
Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS
2026-19668
Final ruleOct 26
Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS
2026-19667
Proposed ruleOct 26
Approval of Implementation Plans for Air Quality Planning Purposes; State of Nevada; Truckee Meadows Second 10-Year Maintenance Plan for the 1987 PM-10 Standard
2026-20102
Proposed ruleNov 2
Air Plan Approval; OR; Lane County Title 36 Rule
2026-20101
Proposed ruleNov 2
Rescission of the Greenhouse Gas Findings for Fossil Fuel-Fired Power Plants and Repeal of Regulations for Power Plant Greenhouse Gas Emissions Under Clean Air Act Section 111
2026-19072
Proposed ruleNov 2
Initial Air Quality Designations for the 2024 Revised Primary Annual Fine Particle (PM2.5) National Ambient Air Quality Standards (NAAQS)
2026-20468
Proposed ruleNov 5
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; West Virginia; Negative Declarations for Existing Large Municipal Waste Combustors and Other Solid Waste Incinerators
2026-20611
Proposed ruleNov 6
Air Quality Plan; Arizona; Maricopa County Air Quality Department; New Source Review; Emission Reduction Credits-Rule 204
2026-20612
Proposed ruleNov 9
Wisconsin: Approval of State Coal Combustion Residuals Permit Program
2026-18552
Proposed ruleNov 10
National Emission Standards for Hazardous Air Pollutants for Gasoline Distribution Facilities and Standards of Performance for Bulk Gasoline Terminals Reconsideration
2026-19774
Proposed ruleNov 12
Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extensions
2026-20964
Proposed ruleNov 13
Indiana: Approval of State Coal Combustion Residuals Permit Program
2026-19027
Proposed ruleNov 16
New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State
2026-21383
Proposed ruleNov 18
Air Quality Plan; Arizona; Agricultural Best Management Practices Rules for the West Pinal County PM10 Nonattainment Area
2026-21289
Proposed ruleNov 18
Approval and Promulgation of Implementation Plans-Pinal County (Part); West Pinal, AZ PM10 Nonattainment Area; Moderate Area, Serious Area, and Section 189(d) Plan for Attainment of the 24-Hour PM10 Standard
2026-21288
Proposed ruleNov 18
Air Quality Plan; Arizona; Pinal County Air Quality Control District; West Pinal County PM10 Nonattainment Area; Fugitive Dust Rules
2026-21287
Proposed ruleNov 18
Nevada: Codification and Incorporation by Reference of Approved Underground Storage Tank Program
2026-21603
Final ruleNov 23
Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for Reporting Year 2025 to March 10, 2027
2026-20982
Final ruleNov 30
Renewable Fuel Standard (RFS) Program: Reallocation of Additional 2025 Small Refinery Exemptions
2026-21155
Proposed ruleDec 4
Utah Underground Injection Control Program; Class VI Primacy
2026-21618
Proposed ruleDec 7

The 500 newest documents

DocumentTypePublished
Virginia: Approval of State Coal Combustion Residuals Permit Program
2026-21622
Final ruleOct 22
Utah Underground Injection Control Program; Class VI Primacy
2026-21618
Proposed ruleOct 22
Nevada: Codification and Incorporation by Reference of Approved Underground Storage Tank Program
2026-21603
Final ruleOct 22
New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State
2026-21383
Proposed ruleOct 19
Air Quality Plan; Arizona; Agricultural Best Management Practices Rules for the West Pinal County PM10 Nonattainment Area
2026-21289
Proposed ruleOct 19
Approval and Promulgation of Implementation Plans-Pinal County (Part); West Pinal, AZ PM10 Nonattainment Area; Moderate Area, Serious Area, and Section 189(d) Plan for Attainment of the 24-Hour PM10 Standard
2026-21288
Proposed ruleOct 19
Air Quality Plan; Arizona; Pinal County Air Quality Control District; West Pinal County PM10 Nonattainment Area; Fugitive Dust Rules
2026-21287
Proposed ruleOct 19
Approval and Promulgation of Implementation Plans; Arizona; Revisions to the Cleaner Burning Gasoline, Winter Oxygenated Fuel, and Gasoline Set-Aside Programs
2026-21268
Final ruleOct 19
Renewable Fuel Standard (RFS) Program: Reallocation of Additional 2025 Small Refinery Exemptions
2026-21155
Proposed ruleOct 16
Significant New Use Rules on Certain Chemical Substances (24-5.5e); Correction
2026-21052
Final ruleOct 15
Significant New Use Rules on Certain Chemical Substances (26-1)
2026-21051
Final ruleOct 15
Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for Reporting Year 2025 to March 10, 2027
2026-20982
Final ruleOct 14
Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extensions
2026-20964
Proposed ruleOct 14
Clean Water Act Hazardous Substance Facility Response Plans: Compliance Date Delay and Changes To Reflect Administration Policy
2026-20849
Final ruleOct 13
Colorado Underground Injection Control (UIC) Program; Class VI Primacy
2026-20846
Final ruleOct 13
Air Plan Approval; Michigan; Clean Data Determination for the Berrien, MI and Muskegon, MI Areas for the 2015 Ozone Standards
2026-20736
Final ruleOct 9
Air Plan Approval; Kentucky; Louisville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS
2026-20641
Final ruleOct 8
Air Plan Approval; Oklahoma; Interstate Transport Requirements for the 2010 SO2 NAAQS
2026-20640
Final ruleOct 8
Approval and Promulgation of State Implementation Plans; New Jersey; RACT Certifications for the 2008 and 2015 Ozone National Ambient Air Quality Standards
2026-20638
Final ruleOct 8
Air Plan Approval; GA; Removal of Nonattainment Area New Source Review
2026-20636
Final ruleOct 8
Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors
2026-20635
Final ruleOct 8
Air Plan Approval; Missouri; Construction Permit Exemptions
2026-20634
Final ruleOct 8
Air Quality Plan; Arizona; Maricopa County Air Quality Department; New Source Review; Emission Reduction Credits-Rule 204
2026-20612
Proposed ruleOct 8
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; West Virginia; Negative Declarations for Existing Large Municipal Waste Combustors and Other Solid Waste Incinerators
2026-20611
Proposed ruleOct 7
Initial Air Quality Designations for the 2024 Revised Primary Annual Fine Particle (PM2.5) National Ambient Air Quality Standards (NAAQS)
2026-20468
Proposed ruleOct 6
Phosphatidylcholine in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-20219
Final ruleOct 2
Administration of Cross-State Air Pollution Rule Trading Program Assurance Provisions for 2025 Control Period
2026-20191
Final ruleOct 1
Approval of Implementation Plans for Air Quality Planning Purposes; State of Nevada; Truckee Meadows Second 10-Year Maintenance Plan for the 1987 PM-10 Standard
2026-20102
Proposed ruleOct 1
Air Plan Approval; OR; Lane County Title 36 Rule
2026-20101
Proposed ruleOct 1
Attainment Date Extension for the South Coast, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area
2026-20097
Final ruleOct 1
Air Plan Approval; Missouri; Control of NOX Emissions From Large Stationary Internal Combustion Engines
2026-20096
Final ruleOct 1
Air Plan Approval; Reconsideration and Repeal of Air Plan Partial Approval and Partial Disapproval of North Dakota's Regional Haze State Implementation Plan for the Second Implementation Period; Correction
2026-20060
Proposed ruleSep 30
Rescission of Title V Emergency Affirmative Defense Rule; Corrections
2026-19889
Final ruleSep 29
Sodium Salt of Acifluorfen; Pesticide Tolerance
2026-19884
Final ruleSep 29
National Emission Standards for Hazardous Air Pollutants for Gasoline Distribution Facilities and Standards of Performance for Bulk Gasoline Terminals Reconsideration
2026-19774
Proposed ruleSep 28
Marine Protection: Modification To Expand Ocean Dredged Material Disposal Sites Offshore of Corpus Christi, Texas
2026-19745
Final ruleSep 28
Clarifying the Scope of “Applicable Requirements” Under State Operating Permit Programs and the Federal Operating Permit Program
2026-19671
Final ruleSep 25
Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS
2026-19668
Final ruleSep 25
Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS
2026-19667
Proposed ruleSep 25
Air Plan Approval; Alabama; Transportation Conformity
2026-19566
Final ruleSep 24
Public Water System Supervision Program Revision for the State of Arkansas
2026-19500
Proposed ruleSep 23
Air Plan Approval; North Carolina; Charlotte-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS
2026-19495
Proposed ruleSep 23
Proposed Deletion From the National Priorities List; Correction
2026-19248
Proposed ruleSep 21
Rescission of the Greenhouse Gas Findings for Fossil Fuel-Fired Power Plants and Repeal of Regulations for Power Plant Greenhouse Gas Emissions Under Clean Air Act Section 111
2026-19072
Proposed ruleSep 17
Partial Repeal of the Carbon Pollution Standards for Fossil Fuel-Fired Electric Generating Units
2026-19071 · significant
Final ruleSep 17
Indiana: Approval of State Coal Combustion Residuals Permit Program
2026-19027
Proposed ruleSep 16
Bacillus amyloliquefaciens strain AT-332; Exemption From the Requirement of a Pesticide Tolerance
2026-18830
Final ruleSep 15
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; District of Columbia; Negative Declaration for Existing Other Solid Waste Incinerators
2026-18759
Proposed ruleSep 14
Clean Data Determination; 1997 8-Hour Ozone Standards; California; Sacramento Metro Area
2026-18755
Proposed ruleSep 14
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Maryland; Negative Declaration for Existing Other Solid Waste Incinerators
2026-18750
Proposed ruleSep 14
Approval and Promulgation of Implementation Plans; California; San Joaquin Valley, Revisions to Motor Vehicle Emissions Budgets for Ozone
2026-18748
Final ruleSep 14
Wisconsin: Approval of State Coal Combustion Residuals Permit Program
2026-18552
Proposed ruleSep 11
Air Plan Approvals; Indiana; Prong 4 (Visibility) for the 2015 Ozone National Ambient Air Quality Standard
2026-18334
Final ruleSep 9
Air Plan Approval; New York; Interstate Transport Requirements for the 2010 SO2 NAAQS
2026-18324
Final ruleSep 9
Updated Definition of “Waters of the United States”
2026-18317 · significant
Proposed ruleSep 9
Air Plan Approval; Reconsideration and Repeal of Air Plan Partial Approval and Partial Disapproval of North Dakota's Regional Haze State Implementation Plan for the Second Implementation Period
2026-18290
Proposed ruleSep 9
Updates to the National Pollutant Discharge Elimination System Definitions and Exclusions
2026-18134
Proposed ruleSep 4
Renewable Fuel Standard (RFS) Program: Extension of 2025 Compliance Reporting Deadline
2026-18132
Final ruleSep 4
Alpha-d-Glucopyranoside, Beta-d-Fructofuranosyl, Mixed Palmitates and Stearates in Pesticide Formulations; Exemption From the Requirement of a Tolerance
2026-17579
Final ruleAug 28
Air Plan Approval; Mississippi; 2010 1-Hour SO2 NAAQS Transport Infrastructure
2026-17503
Proposed ruleAug 27
Air Plan Approval; Kentucky; Cincinnati-Hamilton Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS
2026-17502
Proposed ruleAug 27
Air Plan Approval; Kentucky; Louisville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS
2026-17501
Proposed ruleAug 27
Air Plan Approval; Oklahoma; Regional Haze Plan for the First Implementation Revision; Revision to State Implementation Plan and Requirements
2026-17499
Proposed ruleAug 27
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Allegheny County; Negative Declaration for Existing Large Municipal Waste Combustors
2026-17497
Proposed ruleAug 27
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Puerto Rico; Negative Declaration for the Oil and Gas Industry
2026-17495
Proposed ruleAug 27
Air Plan Approval; Arkansas; Regional Haze State Implementation Plan for the Second Implementation Period
2026-17494
Final ruleAug 27
Air Plan Approval; FL; Emissions Reporting Requirements and Permitting Forms
2026-17490
Final ruleAug 27
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; City of Philadelphia; Negative Declarations for Existing Commercial and Industrial Solid Waste Incinerators, Large Municipal Waste Incinerators, Small Municipal Waste Incinerators, and Other Solid Waste Incinerators
2026-17488
Proposed ruleAug 27
Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology
2026-17486
Final ruleAug 27
Florida: Final Authorization of State Hazardous Waste Management Program Revisions
2026-17454
Final ruleAug 27
Significant New Use Rules on Certain Chemical Substances (24-5.5e)
2026-17400
Final ruleAug 26
Response to Clean Air Act Section 176A Petition From New Hampshire
C1-2026-16331
Proposed ruleAug 24
Carboxin; Pesticide Tolerances
2026-17088
Final ruleAug 21
Proposed Deletion From the National Priorities List
2026-16994
Proposed ruleAug 20
Air Plan Approval; SC; Department Name Change
2026-16990
Final ruleAug 20
Air Plan Approval; Arizona; Attainment Plan for the Hayden SO2 Nonattainment Area for the 1971 and 2010 Sulfur Dioxide National Ambient Air Quality Standards
2026-16989
Final ruleAug 20
Deletion From the National Priorities List
2026-16988
Final ruleAug 20
Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas
2026-16986
Final ruleAug 20
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-June 2026
2026-16976
Proposed ruleAug 20
Cypermethrin; Pesticide Tolerance(s)
2026-16973
Final ruleAug 20
Air Plan Approval; South Carolina; Minor Source Permit Program Revisions
2026-16937
Proposed ruleAug 19
Air Plan Partial Approval and Partial Conditional Approval; South Carolina; Control of Oxides of Nitrogen and Source Testing Requirements
2026-16932
Proposed ruleAug 19
Air Plan Approval; South Carolina; Minor Source Permit Program Revisions
2026-16930
Proposed ruleAug 19
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-May 2026
2026-16724
Proposed ruleAug 17
Calcium Carbonate; Exemption From the Requirement of a Pesticide Tolerance
2026-16720
Final ruleAug 17
Approval of Source-Specific Air Quality Implementation Plan; New York; Big Six Towers Inc.
2026-16627
Final ruleAug 14
Air Plan Approval; Virginia; 1997 8-Hour Ozone National Ambient Air Quality Standard Second Maintenance Plan for the Madison and Page Counties (Shenandoah National Park) Area
2026-16575
Proposed ruleAug 14
Air Plan Approval; Missouri; Moderate Attainment Plan Elements for the 2015 8-Hour Ozone Standard for the Missouri Portion of the St. Louis Nonattainment Area
2026-16571
Proposed ruleAug 14
Air Plan Approval; Iowa; Interstate Transport Requirements for the 2010 Sulfur Dioxide Standard
2026-16570
Proposed ruleAug 14
Air Plan Approval; Commonwealth of Virginia; Transfer of Authority and Requests for Certain Public Hearings on Air Permits
2026-16564
Proposed ruleAug 13
Air Plan Approval; Missouri; Clean Data Determination for the 2015 8-Hour Ozone Standard for the Missouri Portion of the St. Louis Nonattainment Area
2026-16515
Final ruleAug 13
Air Plan Approval; Illinois; Clean Data Determination for the Illinois Portion of the St. Louis Area for the 2015 Ozone Standard
2026-16514
Final ruleAug 13
Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley
2026-16511
Final ruleAug 13
Determination of Attainment by the Attainment Date and Clean Data Determination for the 2012 Annual Fine Particulate Standard; Plumas County, California
2026-16510
Final ruleAug 13
Air Quality Plan; Arizona; Maricopa County Air Quality Department; Gasoline Loading
2026-16335
Proposed ruleAug 11
Determination To Defer Sanctions; Arizona; Maricopa County Air Quality Department; Gasoline Loading
2026-16334
Final ruleAug 11
Response to Clean Air Act Section 176A Petition From New Hampshire
2026-16331
Proposed ruleAug 11
Air Plan Approval; New Hampshire; Repeal of Motor Vehicle Inspection and Maintenance Program
2026-16330
Proposed ruleAug 11
2-Propenoic Acid, 2-Methyl-, Telomer With 1-Dodecanethiol, and 2-Methyloxirane Polymer With Oxirane Monoether With 1,2-Propanediol Mono(2-Methyl-2-Propenoate) in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-16123
Final ruleAug 7
Bacillus thuringiensis eCry1Gb.1Ig Protein; Exemption From the Requirement of a Pesticide Tolerance
2026-16120
Final ruleAug 7
Partial Approval and Partial Disapproval of Air Quality State Implementation Plans; Arizona; Prevention of Significant Deterioration Infrastructure Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standard
2026-16083
Proposed ruleAug 6
Air Plan Approval; Illinois; 2015 Ozone Moderate and Serious Reasonably Available Control Technology Update
2026-16001
Proposed ruleAug 6
Air Plan Approval; Connecticut; Plan for Inclusion of a Consent Order No. 8383-Algonquin Gas Transmission, LLC and Negative Declaration for Rubber Tire Manufacturing Sources
2026-15986
Final ruleAug 6
Alaska: Final Authorization of State Hazardous Waste Program
2026-15984
Final ruleAug 6
Isofetamid; Pesticide Tolerances
2026-15761
Final ruleAug 4
Permethrin; Pesticide Tolerances
2026-15634
Final ruleAug 3
Air Plan Approval; Rhode Island; Update to Materials Incorporated by Reference
2026-15493
Final ruleJul 31
Air Plan Approval; California; San Joaquin Valley Air Pollution Control District
2026-15377
Final ruleJul 30
Air Plan Approval; Pennsylvania; Redesignation of the Warren County Nonattainment Area to Attainment and Approval of the Area's Maintenance Plan for the 2010 1-Hour Primary Sulfur Dioxide National Ambient Air Quality Standard
2026-15372
Proposed ruleJul 30
Air Plan Approval; Missouri; Construction Permit Exemptions
2026-15371
Proposed ruleJul 30
Operating Permit Program Approval; New Hampshire; Revised Definitions
2026-15363
Final ruleJul 30
Clean Air Act Operating Permit Program Revisions; California; Amador County Air Pollution Control District, Calaveras County Air Pollution Control District, Great Basin Unified Air Pollution Control District, Northern Sierra Air Quality Management District
2026-15362
Proposed ruleJul 30
Significant New Use Rules on Certain Chemical Substances (26-4)
2026-15352
Proposed ruleJul 30
Perchloroethylene (PCE) and Carbon Tetrachloride (CTC); Regulation under the Toxic Substances Control Act (TSCA); Compliance Date Extensions
2026-15192
Final ruleJul 28
Epyrifenacil; Pesticide Tolerances; Correction
2026-15191
Final ruleJul 28
Air Plan Approval; Michigan; Redesignation of the Detroit, MI Area to Attainment of the 2015 Ozone Standards
2026-15168
Proposed ruleJul 28
Air Plan Approval; Michigan; Redesignation of the Berrien, MI and Muskegon, MI Areas to Attainment of the 2015 Ozone Standards
2026-15167
Proposed ruleJul 28
Significant New Use Rule on a Certain Chemical Substance; Multi-Walled Carbon Nanotubes
2026-14994
Final ruleJul 24
Approval and Promulgation of State Implementation Plans; New Jersey; RACT Certifications for the 2008 and 2015 Ozone National Ambient Air Quality Standards
2026-14923
Proposed ruleJul 23
Air Plan Approval; Pennsylvania; Harrisburg-Lebanon-Carlisle-York Maintenance Area, Second 10-Year Maintenance Plan for the 2006 Fine Particulate Matter National Ambient Air Quality Standard
2026-14902
Proposed ruleJul 23
Air Plan Approval; Pennsylvania; Revision to Source-Specific Reasonably Available Control Technology (RACT) Requirements
2026-14891
Proposed ruleJul 23
Air Plan Approval; Maine; Chapter 140: Part 70 Air Emission License Regulation
2026-14885
Final ruleJul 23
Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer
2026-14880
Final ruleJul 23
Significant New Use Rules on Certain Chemical Substances (26-3)
2026-14877
Proposed ruleJul 23
New Source Performance Standards Review for Stationary Combustion Turbines and Stationary Gas Turbines; Correction
2026-14371
Final ruleJul 16
Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants; Nebraska; Commercial and Industrial Solid Waste Incineration Units
2026-14330
Final ruleJul 16
Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants; Nebraska; Commercial and Industrial Solid Waste Incineration Units
2026-14329
Proposed ruleJul 16
Air Plan Approval; Pennsylvania; Interim Final Determination To Stay and Defer Sanctions Related to Reasonably Available Control Technology Requirements (RACT) for Volatile Organic Compounds (VOC) Control Technique Guidelines (CTG) Under the 2008 Ozone National Ambient Air Quality Standards (NAAQS)
2026-14326
Final ruleJul 16
Air Plan Approval; Pennsylvania; Reasonably Available Control Technology (RACT) for Volatile Organic Compounds (VOC) Control Technique Guidelines (CTG) Under the 2008 and 2015 Ozone National Ambient Air Quality Standards (NAAQS)
2026-14325
Proposed ruleJul 16
Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations
2026-14322
Final ruleJul 16
Air Plan Approval and Air Quality Designation; Ohio; Attainment Plan and Redesignation of the Canton Area to Attainment of the 2008 Lead Standard
2026-14318
Final ruleJul 16
Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Source Review; Stationary Source Permits
2026-14317
Final ruleJul 16
Air Plan Approval; Wisconsin; Source-Specific Air Quality Implementation Plan; Oak Creek Power Plant
2026-14282
Proposed ruleJul 15
Approval of Source-Specific Air Quality Implementation Plan; New York; Castleton Power, LLC
2026-14261
Proposed ruleJul 15
Air Plan Approval; Missouri; Control of NOX Emissions From Large Stationary Internal Combustion Engines
2026-14260
Proposed ruleJul 15
Alabama: Approval of State Coal Combustion Residuals Permit Program
2026-14118
Proposed ruleJul 14
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Federal CCR Permit Program; General Permit Provisions
2026-14115
Proposed ruleJul 14
Bacteriophage Active Against Xanthomonas campestris pv. vesicatoria_EcoPhage and Bacteriophage Active Against Pseudomonas syringae pv. tomato_EcoPhage; Exemptions from the Requirement of a Pesticide Tolerance
2026-14114
Final ruleJul 14
Amendments and Nonconformance Penalties for Model Year 2027 and Later Heavy-Duty Highway Engines and Amendments to Inducement Provisions for SCR-Equipped Diesel Engines
2026-14112
Proposed ruleJul 14
Approval and Promulgation of Implementation Plans; California; San Joaquin Valley; Revisions to Motor Vehicle Emissions Budgets for Ozone
2026-13845
Proposed ruleJul 9
Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment Area
2026-13843
Final ruleJul 9
Minor New Source Review Program Air Permitting Public Participation Requirements for State Implementation Plans
2026-13667 · significant
Proposed ruleJul 7
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-April 2026
2026-13557
Proposed ruleJul 6
National Emission Standards for Hazardous Air Pollutants: Plywood and Composite Wood Products
2026-13550
Final ruleJul 6
Federal Plan Requirements for Other Solid Waste Incineration Units That Commenced Construction on or Before August 31, 2020, and Have Not Been Modified or Reconstructed After August 29, 2025
2026-13485
Proposed ruleJul 2
Air Plan Approval; Alabama; Transportation Conformity
2026-13403
Proposed ruleJul 2
Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP Provisions
2026-13398
Final ruleJul 2
Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment Area
2026-13396
Final ruleJul 2
Revisions To Establish the Sixth Unregulated Contaminant Monitoring Rule (UCMR 6) for Public Water Systems
2026-13263 · significant
Proposed ruleJul 1
Fluoxapiprolin; Pesticide Tolerances
2026-13198
Final ruleJun 30
Epyrifenacil; Pesticide Tolerances
2026-13193
Final ruleJun 30
Chlormequat Chloride; Pesticide Tolerances
2026-13185
Final ruleJun 30
Diflufenican; Pesticide Tolerances
2026-13180
Final ruleJun 30
Bifenthrin; Pesticide Tolerances
2026-13174
Final ruleJun 30
Air Plan Approval; Ohio; Redesignation of the Cleveland, OH Area to Attainment of the 2015 Ozone Standard
2026-13027
Final ruleJun 29
Air Quality Plan; California; Mojave Desert Air Quality Management District; Rescissions of Outdated Requirements Within Riverside County
2026-12935
Proposed ruleJun 26
U.S. Ecology Nevada, Inc. High Mercury Subcategory Wastes Land Disposal Restrictions Variance
2026-12927 · significant
Final ruleJun 26
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT and SIP Strengthening for Ohio
2026-12921
Final ruleJun 26
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT
2026-12920
Final ruleJun 26
Cinnamaldehyde in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-12913
Final ruleJun 26
Air Plan Approval; District of Columbia; Creation of Synthetic Minor Permit Program
2026-12898
Final ruleJun 26
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Oklahoma; Control of Emissions From Existing Other Solid Waste Incineration Units, Hospital/Medical/Infectious Waste Incinerator Units, and Commercial and Industrial Solid Waste Incineration Units
2026-12896
Final ruleJun 26
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Louisiana; Control of Emissions From Existing Other Solid Waste Incineration Units
2026-12895
Final ruleJun 26
Update of Procedures for Implementing the National Environmental Policy Act and Assessing the Environmental Effects Abroad of EPA Actions
2026-12862
Proposed ruleJun 25
Approval and Promulgation of Implementation Plans; Arizona; Revisions to the Cleaner Burning Gasoline, Winter Oxygenated Fuel, and Gasoline Set-Aside Programs
2026-12551
Proposed ruleJun 23
No-Migration Variance From Land Disposal Restrictions for Clean Harbors Grassy Mountain, Utah
2026-12544
Final ruleJun 23
Air Plan Approval; Colorado; RACT Requirements for the 2008 8-Hour Ozone Standard for the Denver Metro/North Front Range Nonattainment Area
2026-12543
Proposed ruleJun 23
National Emission Standards for Hazardous Air Pollutants: National Emission Standards for Hazardous Air Pollutants: Crude Oil and Natural Gas Production Facilities and Natural Gas Transmission and Storage Facilities; Technology Review and Reconsideration; Extension of Comment Period
2026-12481
Proposed ruleJun 22
EPCRA Hazardous Chemical Inventory Reporting Requirements: Conformity With the 2024 OSHA Hazard Communication Standard
2026-12426
Final ruleJun 22
Congressional Review Act Revocation of 2024 Amendments to the National Emission Standards for Hazardous Air Pollutants: Rubber Tire Manufacturing
2026-12424
Final ruleJun 22
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-March 2026
2026-12417
Proposed ruleJun 22
Air Plan Approval; OR; Update to Materials Incorporated by Reference
2026-12415
Final ruleJun 22
Resin Acids, Esters With Glycerol in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-12272
Final ruleJun 18
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-February 2026
2026-11942
Proposed ruleJun 15
Sodium Nitrate in Pesticide Formulations; Exemption From the Requirement of a Tolerance
2026-11941
Final ruleJun 15
Pydiflumetofen; Pesticide Tolerances
2026-11940
Final ruleJun 15
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Legacy/CCRMU Amendments; Extension of Comment Period
2026-11885 · significant
Proposed ruleJun 12
Partial Withdrawals of Findings of Failure To Submit State Implementation Plan (SIP) Revisions To Amend Provisions Applying to Excess Emissions During Periods of Startup, Shutdown, and Malfunction
2026-11884
Final ruleJun 12
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-January 2026
2026-11844
Proposed ruleJun 12
Ozone Reclassification State Implementation Plan Rule
2026-11843
Proposed ruleJun 12
Attainment Date Extension for the South Coast, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area
2026-11736
Proposed ruleJun 11
Attainment Date Extension for the San Joaquin Valley, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area
2026-11735
Proposed ruleJun 11
Air Plan Approval; New York; New York Metropolitan Area Second Ten-Year Limited Maintenance Plan for the 2006 24-Hour PM2.5 Standard
2026-11732
Final ruleJun 11
Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction
2026-11731
Final ruleJun 11
Air Plan Approval; Connecticut; Ozone Ambient Air Quality Standard and Adhesive and Sealants Regulation Revisions
2026-11728
Final ruleJun 11
Significant New Use Rules on Certain Chemical Substances (26-1)
2026-11593
Proposed ruleJun 10
Approval and Promulgation of Air Quality Implementation Plans; Wyoming; Regional Haze Federal Implementation Plan
2026-11436
Proposed ruleJun 8
Air Plan Approval; Minnesota; Revision to Taconite Federal Implementation Plan
2026-11432
Final ruleJun 8
Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for 2025; Correction
2026-11360
Final ruleJun 5
Significant New Use Rules on Certain Chemical Substances (25-3.5e)
2026-11319
Proposed ruleJun 5
Louisiana: Approval of State Coal Combustion Residuals Permit Program
2026-11312
Proposed ruleJun 5
Clean Air Act Title V Operating Permit Program Revision; District of Columbia
2026-11170
Final ruleJun 4
Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE
2026-11169
Final ruleJun 4
Conditional Approval; Contingency Measure State Implementation Plan for the 2008 Ozone Standards; San Joaquin Valley, California
2026-11168
Final ruleJun 4
Amending the Administrative Hearing Procedures for Claims Against the Hazardous Substance Superfund Pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act
2026-11053
Proposed ruleJun 3
Rescinding the Regulations for Arbitration Requirements and Procedures for Small Superfund Cost Recovery Claims
2026-11052
Proposed ruleJun 3
National Emission Standards for Hazardous Air Pollutants From Hazardous Waste Combustors: Residual Risk and Technology Review
2026-11047 · significant
Final ruleJun 3
Rescission of Title V Emergency Affirmative Defense Rule
2026-10875
Final ruleJun 1
Regulation for Federal Financial Assistance
2026-10817
Proposed ruleMay 29
Air Plan Approval; Indiana; Keystone VOC RACT Alternative Control
2026-10776
Final ruleMay 29
Air Plan Approval; Pennsylvania; Revision to Philadelphia Gas Works, Richmond Plant Reasonably Available Control Technology Plan Under the 1997 8-Hour Ozone National Ambient Air Quality Standards
2026-10771
Final ruleMay 29
Approval of Source-Specific Air Quality Implementation Plan; New York; Calpine JFK Energy Center
2026-10770
Final ruleMay 29
Air Plan Approval; New York; Athens Generating Plant
2026-10769
Final ruleMay 29
Designation of Areas for Air Quality Planning Purposes; Michigan; Technical Amendment
2026-10768
Final ruleMay 29
Air Plan Approval; Michigan; Determination of Attainment by the Attainment Date for the 2015 Ozone Standards
2026-10767
Proposed ruleMay 29
Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District; Ventura County Air Pollution Control District; South Coast Air Quality Management District; Oil and Gas Production; Volatile Organic Compounds
2026-10760
Final ruleMay 29
Air Plan Approval; Maryland; Clean Data Determination for the Baltimore, MD Nonattainment Area for the 2015 Ozone National Ambient Air Quality Standards
2026-10755
Final ruleMay 29
Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regional Haze State Implementation Plan for the Second Implementation Period
2026-10754
Final ruleMay 29
Air Plan Approval; Virginia; Repeal of Existing Stationary Source Regulations
2026-10745
Final ruleMay 29
South Carolina; Approval of State Plan for Control of Emissions From Commercial and Industrial Solid Waste Incineration Units
2026-10744
Final ruleMay 29
Approval and Promulgation of State Air Quality Plans (Negative Declarations) for Designated Facilities and Pollutants; District of Columbia
2026-10739
Final ruleMay 29
Air Plan Approval; ID; Update to Materials Incorporated by Reference
2026-10738
Final ruleMay 29
Significant New Use Rules on Certain Chemical Substances (25-2.5e)
2026-10712
Final ruleMay 29
Propylene Oxide; Pesticide Tolerances
2026-10711
Final ruleMay 29
Bacillus Thuringiensis Cry1B.34.1, Bacillus Thuringiensis Cry1B.61.1 and Adiantum Trapeziforme var. Braziliense IPD083Cb Proteins; Pesticide Tolerances
2026-10709
Final ruleMay 29
Air Plan Approval; Ohio; Removal of Air Nuisance Rule
2026-10643
Proposed ruleMay 28
Approval of Source-Specific Air Quality Implementation Plan; New York; Big Six Towers Inc.
2026-10642
Proposed ruleMay 28
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Federal CCR Permit Program; Reopening of Comment Period
2026-10641 · significant
Proposed ruleMay 28
Air Plan Approval; SC; Department Name Change
2026-10640
Proposed ruleMay 28
Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors; Extension of Comment Period
2026-10638
Proposed ruleMay 28
Phasedown of Hydrofluorocarbons: Excluding Road and Intermodal Container Transport Refrigeration Units From the Hydrofluorocarbon Leak Repair Requirements
2026-10388
Proposed ruleMay 26
Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Promulgated Under the Technology Transitions Provisions of the American Innovation and Manufacturing Act of 2020
2026-10387 · significant
Final ruleMay 26
Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Gila County Reasonably Available Control Technology
2026-10280
Final ruleMay 22
Aluminum in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-10267
Final ruleMay 22
Significant New Use Rules on Certain Chemical Substances (25-1.5e)
2026-10264
Final ruleMay 22
Reporting Deadline Extension for the Health and Safety Data Reporting Rule Under Toxic Substance Control Act (TSCA) Section 8(d)
2026-10263
Final ruleMay 22
Air Plan Approval; FL; Emissions Reporting Requirements and Permitting Forms
2026-10207
Proposed ruleMay 21
Significant New Use Rules on Certain Chemical Substances (26-2); Extension of Comment Period
2026-10161
Proposed ruleMay 21
Extending the Compliance Deadline for the PFOA and PFOS Maximum Contaminant Levels
2026-10086 · significant
Proposed ruleMay 20
Rescission of Regulatory Determinations and Removal of Related Provisions for Four PFAS Substances (PFHxS, PFNA, HFPO-DA (GenX), and the Mixture of These Three PFAS Plus PFBS)
2026-10085 · significant
Proposed ruleMay 20
Revision of Tier 4 Criteria Pollutant Standards, Part 1: Amendments to Phase-In Schedule for Light-Duty and Medium-Duty Vehicles
2026-09905
Proposed ruleMay 18
Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Unmanaged Combustion Residual Leachate
2026-09895 · significant
Proposed ruleMay 18
Air Plan Approval; Montana; Revisions to Western Sugar Stipulation
2026-09619
Final ruleMay 14
Air Plan Approval; Minnesota; Metropolitan Council Wastewater Treatment Plant Title I PM10 SIP Revisions
2026-09618
Final ruleMay 14
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements
2026-09616
Final ruleMay 14
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Washington; Northwest Clean Air Agency
2026-09615
Final ruleMay 14
Air Plan Approval; Ohio; Clean Data Determination for the Cleveland, Ohio Area for the 2015 Ozone Standard
2026-09614
Final ruleMay 14
Air Plan Approval; Illinois; Moderate Attainment Plan Elements for the Chicago and Metro East Areas for the 2015 Ozone Standard
2026-09613
Final ruleMay 14
Air Plan Approval; Indiana; Indiana NOX Emissions Monitoring
2026-09612
Final ruleMay 14
Determination of Attainment by the Attainment Date and Clean Data Determination for the 2012 Annual Fine Particulate Standard; Plumas County, California
2026-09604
Proposed ruleMay 14
Alaska: Tentative Determination on Final Authorization of State Hazardous Waste Management Program
2026-09603
Proposed ruleMay 14
Begin Actual Construction in the New Source Review (NSR) Preconstruction Permitting Program
2026-09524 · significant
Proposed ruleMay 13
Oxirane, 2-phenyl-, polymer With oxirane, mono(hydrogen 2-sulfobutanedioate), octyl ether, sodium salt (1:2) in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-09490
Final ruleMay 13
Definition of Hazardous Waste Applicable to Corrective Action for Releases From Solid Waste Management Units; Withdrawal
2026-09179 · significant
Proposed ruleMay 8
Air Plan Approval; NC; Removal of the State's Vehicle Inspection and Maintenance Program
2026-09146
Proposed ruleMay 8
Air Quality Plan; California; San Diego County Air Pollution Control District; Landfill Flares
2026-09055
Proposed ruleMay 7
Air Plan Approval; Missouri; Attainment Plan for the New Madrid Nonattainment Area for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard
2026-09054
Proposed ruleMay 7
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Allegheny County; Delegation of Authority of the Federal Plan for Existing Sewage Sludge Incineration Units
2026-09043
Final ruleMay 7
Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
2026-08750 · significant
Final ruleMay 5
Virginia: Approval of State Coal Combustion Residuals Permit Program
2026-08662
Proposed ruleMay 4
National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review Reconsideration; Extension of Comment Period
2026-08518 · significant
Proposed ruleMay 1
Air Plan Approval; Delaware; Excess Emissions Provisions Pertaining to Periods of Startup, Shutdown and Malfunction Events
2026-08373
Proposed ruleApr 30
Utah; Northern Wasatch Front; 2015 8-Hour Ozone National Ambient Air Quality Standards; Reconsideration and Repeal of Finding of Failure To Attain and Reclassification to a Serious Nonattainment Area; Determination of Attainment by the Moderate Attainment Date But for International Emissions
2026-08372
Proposed ruleApr 30
Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors
2026-08364
Proposed ruleApr 29
Approval of Missouri's Request for Partial Program Delegation of Clean Air Act 112(r) Prevention of Accidental Release Program
2026-08348
Final ruleApr 29
Significant New Use Rules on Certain Chemical Substances (26-2)
2026-08012
Proposed ruleApr 24
Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer
2026-07906
Proposed ruleApr 23
Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology
2026-07905
Proposed ruleApr 23
Utah; Uinta Basin; 2015 8-Hour Ozone National Ambient Air Quality Standard; Reconsideration and Repeal of Finding of Failure To Attain and Reclassification to a Moderate Nonattainment Area; Extension of the Attainment Date and Determination of Attainment by the Marginal Attainment Date
2026-07904
Proposed ruleApr 23
Hazardous Waste Management System; Identification and Listing of Hazardous Waste; Correction
2026-07899
Proposed ruleApr 23
Kentucky; Approval and Promulgation of State Plan for Designated Facilities and Pollutants; Control of Emissions From Existing Municipal Solid Waste Landfills
2026-07894
Proposed ruleApr 23
Finding of Failure To Attain and Reclassification of Tribal Portions of the Greater Connecticut Ozone Nonattainment Area as Serious for the 2015 Ozone National Ambient Air Quality Standards
2026-07889
Final ruleApr 23
Air Plan Approval; Virginia; Revision to the Regulatory Definition of Volatile Organic Compound
2026-07885
Final ruleApr 23
Air Plan Approval; Missouri; Construction Permits Required
2026-07884
Final ruleApr 23
National Emission Standards for Hazardous Air Pollutants: Crude Oil and Natural Gas Production Facilities and Natural Gas Transmission and Storage Facilities; Technology Review and Reconsideration
2026-07800
Proposed ruleApr 22
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides (Hydrogen Cyanide, et al.)
2026-07794
Final ruleApr 22
Methoxyfenozide; Pesticide Tolerances
2026-07560
Final ruleApr 17
Air Plan Approval; Virginia; Amendment to the State Operating Permit for GP Big Island, LLC
2026-07527
Final ruleApr 17
Air Plan Revisions; Arizona; Maricopa County Air Quality Department; New Source Review; Emission Reduction Credits
2026-07405
Proposed ruleApr 16
Air Plan Approval; Arizona; Interstate Transport Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standards
2026-07400
Final ruleApr 16
Air Plan Approval; Pennsylvania; Redesignation Request for the Allegheny County Area for the 2012 Annual Fine Particulate Matter Standard
2026-07399
Final ruleApr 16
Air Plan Approval; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns
2026-07398
Final ruleApr 16
National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal; Correction
2026-07396 · significant
Final ruleApr 16
Modification to the Start of the Submission Period for Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Reporting and Recordkeeping Under TSCA 8(a)(7)
2026-07062
Final ruleApr 13
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Legacy/CCRMU Amendments
2026-07061 · significant
Proposed ruleApr 13
Hexanedioic acid, polymer with sodium 2-[(2-aminoethyl)amino]ethanesulfonate (1:1), 1,6-diisocyanatohexane, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediamine and 1,6-hexanediol in Pesticide Formulations; Exemption from the Requirement for a Tolerance
2026-06954
Final ruleApr 10
Polyethylhexyl Glycidyl Ether Polyethylene Oxide Copolymer in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-06953
Final ruleApr 10
Air Plan Approval; Ohio; Redesignation of the Cleveland, OH Area to Attainment of the 2015 Ozone Standards
2026-06943
Proposed ruleApr 10
Air Plan Approvals; Indiana; Prong 4 (Visibility) for the 2015 Ozone National Ambient Air Quality Standard
2026-06942
Proposed ruleApr 10
Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment Area
2026-06941
Proposed ruleApr 10
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT for Ohio
2026-06940
Proposed ruleApr 10
Air Plan Approval; New York; Interstate Transport Requirements for the 2010 SO2 NAAQS
2026-06938
Proposed ruleApr 10
Air Plan Approval and Air Quality Designation; Ohio; Attainment Plan and Redesignation of the Canton Area to Attainment of the 2008 Lead Standard
2026-06937
Proposed ruleApr 10
Air Plan Approval; Rhode Island; Regional Haze State Implementation Plan for the Second Implementation Period; Prong 4 (Visibility) for the 2015 8-Hour Ozone National Ambient Air Quality Standard
2026-06838
Final ruleApr 9
Air Plan Approval; Colorado; Serious Attainment Plan Contingency Measures and RACT Requirements for the 2008 8-Hour Ozone National Ambient Air Quality Standards for the Denver Metro/North Front Range Nonattainment Area
2026-06837
Final ruleApr 9
Air Plan Approval; Missouri; Revisions to Existing Rule 10 CSR 10-5.570; Control of Sulfur Emissions From Stationary Boilers
2026-06832
Final ruleApr 9
Air Plan Approval; Missouri; Revisions to Existing Rule 10 CSR 10-5.570; Control of Sulfur Emissions From Stationary Boilers
2026-06831
Proposed ruleApr 9
Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review
2026-06808 · significant
Final ruleApr 9
Update to EPAAR Text of Provisions and Clauses, Signing of Uniform Hazardous Wastes Manifests
2026-06775
Proposed ruleApr 8
Citrus Tristeza Virus (CTV) Strain T36 Expressing Spinach Defensin Proteins SoD2, SoD2-1, and SoD2*; Exemption From the Requirement of a Tolerance
2026-06686
Final ruleApr 7
Determination of Attainment by the Attainment Date But for International Emissions for the 2015 Ozone National Ambient Air Quality Standards; Phoenix-Mesa Nonattainment Area, Arizona
C1-2026-05601
Final ruleApr 6
Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program in Refrigeration and Air Conditioning and Fire Suppression; Supplemental Notice of Proposed Rulemaking
2026-06665
Proposed ruleApr 6
Drinking Water Contaminant Candidate List 6-Draft
2026-06662
Proposed ruleApr 6
Accidental Release Prevention Requirements: Risk Management Programs Under the Clean Air Act; Common Sense Approach to Chemical Accident Prevention; Extension of Comment Period
2026-06444 · significant
Proposed ruleApr 2
Clean Air Act Operating Permit Program Revision; California; Monterey Bay Air Resources District
2026-06443
Proposed ruleApr 2
Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas
2026-06442
Proposed ruleApr 2
Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction
2026-06441
Proposed ruleApr 2
Lead-Based Paint Poisoning Prevention in Certain Residential Structures
2026-06404
Final ruleApr 2
Air Plan Approval; Ohio; Ohio Permit Rules Revisions
2026-06398
Final ruleApr 2
Air Plan Approval; Ohio; Muskingum River 2010 Sulfur Dioxide Redesignation and Maintenance Plan
2026-06397
Final ruleApr 2
Air Plan Approval; Michigan; Detroit 2010 Sulfur Dioxide Redesignation and Maintenance Plan
2026-06396
Final ruleApr 2
Ohio: Authorization of State Hazardous Waste Management Program Revisions
2026-06395
Final ruleApr 2
Air Plan Approval; Oregon; 2024 Vehicle Inspection Program Updates
2026-06388
Final ruleApr 2
Air Quality Plan; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements; Correction
2026-06386
Final ruleApr 2
Air Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision
2026-06384
Final ruleApr 2
National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review
2026-06304
Final ruleApr 1
Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and Other Changes
2026-06275 · significant
Final ruleApr 1
Reporting Deadline Extension for the Health and Safety Data Reporting Rule Under Toxic Substance Control Act (TSCA) Section 8(d)
2026-06066
Proposed ruleMar 30
Perchloroethylene (PCE) and Carbon Tetrachloride (CTC); Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extensions
2026-05977
Proposed ruleMar 27
Hazardous Waste Management System; Identification and Listing of Hazardous Waste
2026-05876
Proposed ruleMar 26
Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations
2026-05875
Proposed ruleMar 26
Florida: Final Authorization of State Hazardous Waste Management Program Revisions
2026-05863
Proposed ruleMar 26
Florida: Final Authorization of State Hazardous Waste Management Program Revisions
2026-05862
Final ruleMar 26
Dimethylpolysiloxane in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-05773
Final ruleMar 25
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Washington; Southwest Clean Air Agency
2026-05712
Final ruleMar 24
Approval and Promulgation of State Plans for Designated Facilities and Pollutants; West Virginia; Control of Emissions From Existing Municipal Solid Waste Landfills
2026-05637
Proposed ruleMar 23
Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Source Review; Stationary Source Permits
2026-05636
Proposed ruleMar 23
Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth Ozone Nonattainment Area
2026-05607
Final ruleMar 23
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Louisiana; Control of Emissions From Existing Other Solid Waste Incineration Units
2026-05606
Proposed ruleMar 23
Determination of Attainment by the Attainment Date But for International Emissions for the 2015 Ozone National Ambient Air Quality Standards; Phoenix-Mesa Nonattainment Area, Arizona
2026-05601
Final ruleMar 23
Air Plan Approval; Texas; Reasonably Available Control Technology in the Houston-Galveston-Brazoria Ozone Nonattainment Area
2026-05596
Final ruleMar 23
Approval of Clean Air Plans; San Joaquin Valley, California; Contingency Measures for 1997 Ozone Standards
2026-05592
Final ruleMar 23
Air Plan Revisions; California; Mojave Desert Air Quality Management District; New Source Review; Stationary Source Permits
2026-05591
Final ruleMar 23
Protecting Public Health and Unleashing American Energy by Facilitating Scrap Tire Pile Cleanups
2026-05586
Proposed ruleMar 23
Air Plan Approval; Ohio; Volatile Organic Compounds RFD Beaufort
2026-05568
Final ruleMar 23
Air Plan Approval; New Hampshire; Single Source VOC RACT Order for Hutchinson Sealing Systems
2026-05567
Final ruleMar 23
Standards for Air Curtain Incinerators That Only Burn Wood Wastes, Yard Wastes and Clean Lumber; Provision for Commercial and Industrial Solid Waste Incineration Units: Temporary Use Incinerators and Air Curtain Incinerators Used in Disaster Recovery
2026-05491
Proposed ruleMar 20
National Emission Standards for Marine Tank Vessel Loading Operations: Technology Review
C1-2026-04304
Proposed ruleMar 19
Colorado Underground Injection Control Program; Class VI Primacy
2026-05453
Proposed ruleMar 19
Announcement of Final Regulatory Determinations for Contaminants on the Fifth Drinking Water Contaminant Candidate List
2026-05452
Final ruleMar 19
Commercial and Industrial Solid Waste Incineration Units: Temporary-Use Incinerators and Air Curtain Incinerators Used in Disaster Recovery; Rescission of Interim Final Rule
2026-05395
Final ruleMar 19
National Emission Standards for Hazardous Air Pollutants: Polyether Polyols Production Industry Review
2026-05261
Final ruleMar 18
National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review Reconsideration
2026-05167 · significant
Proposed ruleMar 17
Air Plan Approval; Connecticut; Revision to the State Implementation Plan for Inclusion of Consent Order No. 8383-Algonquin Gas Transmission, LLC and Negative Declaration for Rubber Tire Manufacturing Sources
2026-04991
Proposed ruleMar 13
National Priorities List
2026-04904
Final ruleMar 13
Air Plan Approval; Michigan; Clean Data Determination for the Berrien, MI and Muskegon, MI Areas for the 2015 Ozone Standards
2026-04851
Proposed ruleMar 12
Marine Protection: Modification To Expand Ocean Dredged Material Disposal Sites Offshore of Corpus Christi, Texas
2026-04848
Proposed ruleMar 12
Air Plan Approval; North Dakota; Approval of Air Quality Implementation Plans; Regional Haze State Implementation Plan; Regional Haze Five Year Progress Report and Nitrogen Oxides Best Available Retrofit Technology Determination for Coal Creek Station for the First Implementation Period
2026-04649
Final ruleMar 10
Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and Five-Year Review
2026-04646 · significant
Final ruleMar 10
Clean Water Act Hazardous Substance Facility Response Plans: Compliance Date Delay and Changes To Reflect Administration Policy
2026-04388
Proposed ruleMar 5
Paper Manifest Sunset Rule; Modification of the Hazardous Waste Manifest Regulations
2026-04366
Proposed ruleMar 5
Air Plan Approval; Arizona; Attainment Plan for the Hayden SO2 Nonattainment Area for the 1971 and 2010 Sulfur Dioxide National Ambient Air Quality Standards
2026-04339
Proposed ruleMar 4
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Texas; Control of Emissions From Existing Municipal Solid Waste Landfills
2026-04338
Proposed ruleMar 4
Air Plan Approval; OR; Klamath Falls PM2.5 Redesignation to Attainment and Maintenance Plan
2026-04333
Proposed ruleMar 4
Proposed Deletion From the National Priorities List
2026-04321
Proposed ruleMar 4
Deletion From the National Priorities List
2026-04320
Final ruleMar 4
National Emission Standards for Marine Tank Vessel Loading Operations: Technology Review
2026-04304
Proposed ruleMar 4
Air Plan Approval; AK; Regional Haze State Implementation Plan for the Second Implementation Period
2026-04159
Final ruleMar 3
Interstate Transport Plan Review for the 2015 Ozone NAAQS
2026-04151
Proposed ruleMar 3
Removal of the Federal Reformulated Gasoline Program From the Kentucky Portion of the Louisville Area
2026-04127
Final ruleMar 2
Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for 2025
2026-03995
Final ruleFeb 27
Implementing Statutory Addition of Certain Per- and Polyfluoroalkyl Substances (PFAS) to the Toxics Release Inventory Beginning With Reporting Year 2026
2026-03944
Final ruleFeb 27
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Maleic Hydrazide, et al.
2026-03942
Final ruleFeb 27
Pyridate; Pesticide Tolerances
2026-03938
Final ruleFeb 27
Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology
2026-03937
Proposed ruleFeb 27
Air Plan Approvals; Illinois; Regional Haze Plan for the Second Implementation Period; Interstate Transport of Air Pollution for the 2012 PM2.5 and 2015 Ozone NAAQS
2026-03936
Proposed ruleFeb 27
Air Plan Approval; Ohio; Clean Data Determination for the Cleveland, Ohio Area for the 2015 Ozone Standard
2026-03934
Proposed ruleFeb 27
Air Plan Approval; Indiana; Keystone VOC RACT Alternative Control
2026-03933
Proposed ruleFeb 27
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT and SIP Strengthening for Ohio
2026-03931
Proposed ruleFeb 27
Approval of Missouri's Request for Partial Program Delegation of Clean Air Act Section 112(r) Prevention of Accidental Release Program
2026-03891
Proposed ruleFeb 26
Air Plan Approval; Missouri; Reporting Emission Data, Emission Fees, and Process Information
2026-03888
Final ruleFeb 26
Air Plan Approval; Connecticut; State Implementation Plan Revisions Required as a Result of a Definition Change Due to the Ozone Reclassification
2026-03887
Final ruleFeb 26
Air Plan Approval; Michigan; Moderate Attainment Plan Elements for the Allegan County, Berrien County, and Muskegon County Areas for the 2015 Ozone Standard
2026-03880
Final ruleFeb 26
No-Migration Variance From Land Disposal Restrictions for Clean Harbors Lone Mountain, Oklahoma
2026-03879
Final ruleFeb 26
Air Plan Approval; Illinois; Clean Data Determination for the Illinois Portion of the St. Louis Area for the 2015 Ozone Standard
2026-03846
Proposed ruleFeb 26
Air Plan Approval; Missouri; Clean Data Determination for the 2015 8-Hour Ozone Standard for the Missouri Portion of the St. Louis Nonattainment Area
2026-03845
Proposed ruleFeb 26
Wyoming: Approval of State Coal Combustion Residuals Permit Program
2026-03820
Final ruleFeb 26
Prior Notice of Citizen Suits
2026-03646
Proposed ruleFeb 24
National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal
2026-03638 · significant
Final ruleFeb 24
Accidental Release Prevention Requirements: Risk Management Programs Under the Clean Air Act; Common Sense Approach to Chemical Accident Prevention
2026-03633 · significant
Proposed ruleFeb 24
Inpyrfluxam; Pesticide Tolerances
2026-03423
Final ruleFeb 20
Pydiflumetofen; Pesticide Tolerances
2026-03421
Final ruleFeb 20
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Diphenylamine, et al.
2026-03371
Final ruleFeb 20
Imidacloprid; Pesticide Tolerance(s)
2026-03368
Final ruleFeb 20
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Terbacil, et al.
2026-03366
Final ruleFeb 20
Clean Water Act Hazardous Substance Facility Response Plans; Amendment Reconsideration
2026-03220
Proposed ruleFeb 18
Rescission of the Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under the Clean Air Act
2026-03157 · significant
Final ruleFeb 18
Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
2026-03155 · significant
Final ruleFeb 18
Glufosinate; Pesticide Tolerances
C1-2025-20399
Final ruleFeb 17
Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regional Haze State Implementation Plan for the Second Implementation Period
2026-03072
Proposed ruleFeb 17
Afidopyropen; Pesticide Tolerances
2026-02933
Final ruleFeb 13
Rice Bran Wax in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-02926
Final ruleFeb 13
Sulfonic Acids, C14-16-Alkane Hydroxy and C14-16-Alkene, Sodium Salts in Pesticide Formulations; Exemption From the Requirement for a Tolerance
2026-02922
Final ruleFeb 13
Hexythiazox; Pesticide Tolerances
2026-02916
Final ruleFeb 13
Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Gila County Reasonably Available Control Technology
2026-02845
Proposed ruleFeb 12
Approval and Promulgation of Air Quality Implementation Plans; Oklahoma; Regional Haze State Implementation Plan for the Second Implementation Period
2026-02843
Proposed ruleFeb 12
Air Plan Approval; Illinois; Moderate Attainment Plan Elements for the Chicago and Metro East Areas for the 2015 Ozone Standard
2026-02842
Proposed ruleFeb 12
Air Plan Approval; Oklahoma; Interstate Transport Requirements for the 2010 SO2 NAAQS
2026-02841
Proposed ruleFeb 12
Partial Approval and Promulgation of State Plan for Designated Facilities and Pollutants; West Virginia; Control of Emissions From Existing Commercial and Industrial Solid Waste Incineration (CISWI) Units, Plan Revision
2026-02830
Proposed ruleFeb 12
Air Plan Approval; Ohio; Second Maintenance Plan for 2008 Ozone NAAQS
2026-02822
Final ruleFeb 12
Air Plan Approval; New York; New York Metropolitan Area Second Ten-Year Limited Maintenance Plan for the 2006 24-Hour PM2.5 Standard
2026-02810
Proposed ruleFeb 12
Deletion From the National Priorities List; Correction
2026-02809
Final ruleFeb 12
Voluntary Consensus Standards Update; Formaldehyde Emission Standards for Composite Wood Products
2026-02715
Proposed ruleFeb 11
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; CCR Management Unit Deadline Extension Rule
2026-02599
Final ruleFeb 10
Air Plan Approval; AK; Updates to Materials Incorporated by Reference
2026-02478
Final ruleFeb 9
Air Plan Approval; Connecticut; Revised Format for Materials Incorporated by Reference
2026-02477
Final ruleFeb 9
Air Plan Approval; Pennsylvania; Proposed Revision to Philadelphia Gas Works, Richmond Plant Reasonably Available Control Technology Plan Under the 1997 8-Hour Ozone National Ambient Air Quality Standards
2026-02381
Proposed ruleFeb 6
Air Plan Revisions; California; Heavy-Duty Vehicle Inspection and Maintenance Program
2026-02350
Final ruleFeb 6
US Ecology Nevada, Inc. High Mercury Subcategory Wastes Land Disposal Restrictions Variance
2026-02346 · significant
Proposed ruleFeb 6
Approval and Promulgation of Air Quality Implementation Plans; Nevada; Regional Haze State Implementation Plan for the Second Implementation Period
2026-02344
Final ruleFeb 6
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals In or On Various Commodities-December 2025
2026-01991
Proposed ruleFeb 2
Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Deadline Extensions; Correction
2026-01913
Final ruleJan 30
Chlorate; Exemption From the Requirement of a Pesticide Tolerance
2026-01902
Final ruleJan 30
PDHP 68949; Exemption From the Requirement of a Tolerance
2026-01901
Final ruleJan 30
Interstate Transport Plan Review for the 2015 Ozone NAAQS
2026-01844 · significant
Proposed ruleJan 30
Air Plan Approval and Air Quality Designation; KY; Redesignation of the Kentucky Portion of the Louisville, KY-IN 2015 8-Hour Ozone Nonattainment Area to Attainment
2026-01772
Final ruleJan 29
Determination of Attainment by the Attainment Date and Clean Data Determination; California, San Joaquin Valley 1997 Annual PM2.5 Fine Particulate Matter Nonattainment Area
2026-01766
Final ruleJan 29
Air Plan Approval; Pennsylvania; Motor Vehicle Inspection and Maintenance Program Certification for Moderate Nonattainment Under the 2015 Ozone National Ambient Air Quality Standards
2026-01762
Final ruleJan 29
Air Plan Approval; OR; Lane County Permitting Rule Revisions
2026-01735
Final ruleJan 29
Determination of Attainment by the Attainment Date for the Louisville Moderate Area for the 2015 Ozone National Ambient Air Quality Standard
2026-01733
Proposed ruleJan 29
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-November 2025
2026-01654
Proposed ruleJan 28
Freedom of Information Act Regulations Update
2026-01511
Proposed ruleJan 27
Air Plan Disapproval; Colorado; Regional Haze Plan for the Second Implementation Period
2026-01413
Final ruleJan 26
Air Plan Approval; Arkansas; Codification of the State Implementation Plan
2026-01410
Final ruleJan 26
Air Plan Approval; Oklahoma; Revisions to Air Pollution Control Rules
2026-01408
Final ruleJan 26
Air Plan Approval; Indiana; Regional Haze Plan for the Second Implementation Period
2026-01406
Final ruleJan 26
Air Plan Approval; Montana; Revisions to Western Sugar Stipulation
2026-01324
Proposed ruleJan 23
Proposed Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE; Extension of Comment Period
2026-01319
Proposed ruleJan 23
Air Plan Approval; Maryland; Clean Data Determination for the Baltimore, MD Nonattainment Area for the 2015 Ozone National Ambient Air Quality Standards
2026-01314
Proposed ruleJan 23
Air Plan Approval; Ohio; 2015 Ozone Moderate Reasonably Available Control Technology
2026-01001
Final ruleJan 20
Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley
2026-00782
Proposed ruleJan 15
Updating the Water Quality Certification Regulations
2026-00754
Proposed ruleJan 15
New Source Performance Standards Review for Stationary Combustion Turbines and Stationary Gas Turbines
2026-00677 · significant
Final ruleJan 15
Pyriofenone; Pesticide Tolerances
2026-00628
Final ruleJan 14
Permethrin; Pesticide Tolerances
2026-00545
Final ruleJan 14
Air Plan Approval; New York; Ortho Clinical Diagnostics
2026-00281
Final ruleJan 9
Technical Amendments to the EPCRA Hazardous Chemical Inventory Reporting Requirements To Conform to the 2024 OSHA Hazard Communication Standard; Withdrawal
2026-00259
Final ruleJan 9
Air Plan Approval; Ohio; Ohio Permit Rules Revisions
2026-00258
Proposed ruleJan 9
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Ohio; Delegation of Authority
2026-00253
Final ruleJan 9
Air Plan Approval; New Hampshire; Updates to Materials Incorporated by Reference
2026-00249
Final ruleJan 9
Air Plan Approval; Indiana; Huntington County 2010 Sulfur Dioxide Redesignation and Maintenance Plan
2026-00246
Final ruleJan 9
Clean Air Act Title V Operating Permit Program Revision; District of Columbia
2026-00215
Proposed ruleJan 8
Air Plan Approval; Missouri; Construction Permits Required
2026-00214
Proposed ruleJan 8
Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements
2026-00208
Final ruleJan 8
Air Plan Approval; Kentucky; Emissions Inventory and Nonattainment New Source Review for the Henderson-Webster Sulfur Dioxide Nonattainment Area
2026-00201
Final ruleJan 8
Air Plan Approval; California; Mojave Desert Air Quality Management District; Definition of Terms
2026-00194
Final ruleJan 8
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Extension of an Alternative Closure Requirement Deadline; Extension of Comment Period
2026-00084
Proposed ruleJan 7
National Primary Drinking Water Regulation for Perchlorate
2026-00021 · significant
Proposed ruleJan 6
Utah; Northern Wasatch Front; 2015 8-Hour Ozone Nonattainment Area Boundary Expansion and Applicability of Certain Clean Air Act Requirements
2026-00007
Final ruleJan 6
Air Plan Revision; California; Placer County Air Pollution Control District; New Source Review
2026-00006
Final ruleJan 6
Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District
2026-00005
Final ruleJan 6
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements; Withdrawal of Direct Final Rule
2026-00004
Final ruleJan 6
Extension of the State Implementation Plan Due Date for the Regional Haze Third Implementation Period
2026-00003
Final ruleJan 6
Air Plan Approval; Michigan and Minnesota; Revision to Taconite Federal Implementation Plan
2025-24207
Final ruleJan 2
Congressional Review Act Revocation of 2024 Review of Final Rule Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act
2025-24202
Final ruleJan 2
Proposed Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE
2025-24200
Proposed ruleJan 2
National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma
2025-24149
Final ruleJan 2
Air Plan Approval; Colorado; Revisions to Colorado Procedural Rules and Common Provisions Regulation
2025-24141
Final ruleJan 2
Air Plan Approval; CO; Revisions to Colorado Procedural Rules and Common Provisions Regulation
2025-24140
Proposed ruleJan 2
No-Migration Variance From Land Disposal Restrictions for Clean Harbors Grassy Mountain, Utah
2025-24134
Proposed ruleDec 31, 2025
Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Deadline Extensions
2025-24102
Final ruleDec 31, 2025
Regulation of Fuels, Fuel Additives, and Regulated Blendstocks
2025-24084
Final ruleDec 31, 2025
Air Plan Approval; South Carolina; Second Planning Period Regional Haze Plan
C1-2025-22565
Final ruleDec 30, 2025
Petition To Delist Hazardous Air Pollutant: 2-Butoxyethyl Benzoate (2-BEB)
2025-23566
Proposed ruleDec 22, 2025
Thiamethoxam; Pesticide Tolerances
2025-23424
Final ruleDec 19, 2025
Flupyradifurone; Pesticide Tolerance for Emergency Exemption
2025-23420
Final ruleDec 19, 2025
New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Louisiana
2025-23284
Final ruleDec 18, 2025
New Source Performance Standards; Delegation of Authority to Oklahoma
2025-23275
Final ruleDec 18, 2025
Air Plan Approval: Arizona: Infrastructure Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standard
2025-23259
Final ruleDec 18, 2025
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-October 2025
2025-22937
Proposed ruleDec 16, 2025
SpCas9 Protein; Exemption From the Requirement of a Tolerance
2025-22927
Final ruleDec 16, 2025
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-August 2025
2025-22756
Proposed ruleDec 15, 2025
Air Plan Approval; New Hampshire; Single Source VOC RACT Order for Hutchinson Sealing Systems
2025-22610
Proposed ruleDec 11, 2025
Air Plan Approval; Michigan; Moderate Attainment Plan Elements for the Allegan County, Berrien County, and Muskegon County Areas for the 2015 Ozone Standard
2025-22607
Proposed ruleDec 11, 2025
Air Plan Approval; Connecticut; Plan Submittals for the 2008 Ozone National Ambient Air Quality Standard
2025-22595
Final ruleDec 11, 2025
Air Plan Disapproval; Ohio; E-Check Attestation Provisions
2025-22594
Proposed ruleDec 11, 2025
Air Plan Approval; California; South Coast Air Quality Management District
2025-22584
Final ruleDec 11, 2025
Approval of Air Quality Implementation Plans; Arizona; Arizona Department of Environmental Quality; Stationary Source Permits; West Pinal County; PM10
2025-22582
Final ruleDec 11, 2025
Air Plan Approval; South Carolina; Second Planning Period Regional Haze Plan
2025-22565
Final ruleDec 11, 2025
Air Plan Approval; Tennessee; Second Period Regional Haze Plan
2025-22564
Final ruleDec 11, 2025
Air Plan Approval; Ohio; Carmeuse Lime, Inc. SO2
2025-22562
Final ruleDec 11, 2025
No-Migration Variance From Land Disposal Restrictions for Clean Harbors Lone Mountain, Oklahoma
2025-22553
Proposed ruleDec 11, 2025
Air Plan Approval; Virginia; Amendment to the State Operating Permit for GP Big Island, LLC
2025-22533
Proposed ruleDec 11, 2025
Air Plan Approval; California; San Joaquin Valley Air Pollution Control District
2025-22530
Proposed ruleDec 11, 2025
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Atrazine, et al.
2025-22519
Proposed ruleDec 11, 2025
Air Plan Approval; Arizona; Maricopa County Air Quality Department; Volatile Organic Compounds and Particulate Matter; Solvent Cleaning; Architectural Coatings; Incinerators, Burn-Off Ovens, and Crematories
2025-22517
Final ruleDec 11, 2025
Azoxystrobin; Pesticide Tolerances
2025-22174
Final ruleDec 8, 2025
National Emission Standards for Hazardous Air Pollutants for Coke Ovens: Pushing, Quenching, and Battery Stacks, and Coke Oven Batteries; Rescission of Extension of Compliance Deadlines for Coke Oven Facilities
2025-22034
Final ruleDec 5, 2025
Air Plan Approval; Texas and Oklahoma; Texas Regional Haze Plans for the First and Second Implementation Periods and Five-Year Progress Report; Oklahoma Regional Haze Plan for the First Implementation Period
2025-22002
Final ruleDec 5, 2025
Oil and Natural Gas Sector Climate Review: Extension of Deadlines in Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources
2025-21788 · significant
Final ruleDec 3, 2025
National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review
2025-21787
Final ruleDec 3, 2025
Environmental Protection Agency Acquisition Regulation (EPAAR); Special Contracting Methods; Options; Contracts; Withdrawal
2025-21713
Final ruleDec 1, 2025
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-September 2025
2025-21679
Proposed ruleDec 1, 2025
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Extension of an Alternative Closure Requirement Deadline
2025-21597
Proposed ruleNov 28, 2025
Air Plan Approval; Virginia; Repeal of Existing Stationary Source Regulations
2025-21557
Proposed ruleNov 28, 2025
Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Initial Notification Date Extension; Withdrawal of Direct Final Rule
2025-21426
Final ruleNov 28, 2025
Air Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision
2025-21413
Proposed ruleNov 28, 2025
Air Plan Approval; Missouri; Reporting Emission Data, Emission Fees, and Process Information
2025-21346
Proposed ruleNov 28, 2025
Air Plan Approval; Montana; Regional Haze Plan for the Second Implementation Period
2025-21340
Final ruleNov 28, 2025
Air Plan Approval; Ohio; Emergency Episodes and Ambient Air Quality Standards
2025-21322
Final ruleNov 26, 2025
Air Plan Approval; Ohio; Emergency Episodes and Ambient Air Quality Standards
2025-21321
Proposed ruleNov 26, 2025
Delegation of Authority to North Carolina and Forsyth County of the Federal Plan for Existing Landfills
2025-21306
Final ruleNov 26, 2025
Propyzamide; Extension of Tolerance for Emergency Exemption
2025-21200
Final ruleNov 26, 2025
Review of National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review; Reopening of Comment Period
2025-20753
Proposed ruleNov 24, 2025
Air Plan Approval; Indiana; Second Maintenance Plan for 2008 Ozone NAAQS
2025-20672
Proposed ruleNov 21, 2025
Air Plan Approval; New York; Athens Generating Plant
2025-20499
Proposed ruleNov 20, 2025
Air Plan Approval; Maine; Chapter 140: Part 70 Air Emission License Regulation
2025-20498
Proposed ruleNov 20, 2025
Finding of Failure To Attain and Reclassification of Tribal Portions of the Greater Connecticut Ozone Nonattainment Area as Serious for the 2015 Ozone National Ambient Air Quality Standards
2025-20497
Proposed ruleNov 20, 2025
Operating Permit Program Approval; New Hampshire; Revised Definitions
2025-20496
Proposed ruleNov 20, 2025
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements
2025-20495
Final ruleNov 20, 2025

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