Virginia: Approval of State Coal Combustion Residuals Permit Program 2026-21622 | Final rule | Oct 22 |
Utah Underground Injection Control Program; Class VI Primacy 2026-21618 | Proposed rule | Oct 22 |
Nevada: Codification and Incorporation by Reference of Approved Underground Storage Tank Program 2026-21603 | Final rule | Oct 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 rule | Oct 19 |
Air Quality Plan; Arizona; Agricultural Best Management Practices Rules for the West Pinal County PM10 Nonattainment Area 2026-21289 | Proposed rule | Oct 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 rule | Oct 19 |
Air Quality Plan; Arizona; Pinal County Air Quality Control District; West Pinal County PM10 Nonattainment Area; Fugitive Dust Rules 2026-21287 | Proposed rule | Oct 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 rule | Oct 19 |
Renewable Fuel Standard (RFS) Program: Reallocation of Additional 2025 Small Refinery Exemptions 2026-21155 | Proposed rule | Oct 16 |
Significant New Use Rules on Certain Chemical Substances (24-5.5e); Correction 2026-21052 | Final rule | Oct 15 |
Significant New Use Rules on Certain Chemical Substances (26-1) 2026-21051 | Final rule | Oct 15 |
Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for Reporting Year 2025 to March 10, 2027 2026-20982 | Final rule | Oct 14 |
Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extensions 2026-20964 | Proposed rule | Oct 14 |
Clean Water Act Hazardous Substance Facility Response Plans: Compliance Date Delay and Changes To Reflect Administration Policy 2026-20849 | Final rule | Oct 13 |
Colorado Underground Injection Control (UIC) Program; Class VI Primacy 2026-20846 | Final rule | Oct 13 |
Air Plan Approval; Michigan; Clean Data Determination for the Berrien, MI and Muskegon, MI Areas for the 2015 Ozone Standards 2026-20736 | Final rule | Oct 9 |
Air Plan Approval; Kentucky; Louisville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS 2026-20641 | Final rule | Oct 8 |
Air Plan Approval; Oklahoma; Interstate Transport Requirements for the 2010 SO2 NAAQS 2026-20640 | Final rule | Oct 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 rule | Oct 8 |
Air Plan Approval; GA; Removal of Nonattainment Area New Source Review 2026-20636 | Final rule | Oct 8 |
Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors 2026-20635 | Final rule | Oct 8 |
Air Plan Approval; Missouri; Construction Permit Exemptions 2026-20634 | Final rule | Oct 8 |
Air Quality Plan; Arizona; Maricopa County Air Quality Department; New Source Review; Emission Reduction Credits-Rule 204 2026-20612 | Proposed rule | Oct 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 rule | Oct 7 |
Initial Air Quality Designations for the 2024 Revised Primary Annual Fine Particle (PM2.5) National Ambient Air Quality Standards (NAAQS) 2026-20468 | Proposed rule | Oct 6 |
Phosphatidylcholine in Pesticide Formulations; Exemption From the Requirement for a Tolerance 2026-20219 | Final rule | Oct 2 |
Administration of Cross-State Air Pollution Rule Trading Program Assurance Provisions for 2025 Control Period 2026-20191 | Final rule | Oct 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 rule | Oct 1 |
Air Plan Approval; OR; Lane County Title 36 Rule 2026-20101 | Proposed rule | Oct 1 |
Attainment Date Extension for the South Coast, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area 2026-20097 | Final rule | Oct 1 |
Air Plan Approval; Missouri; Control of NOX Emissions From Large Stationary Internal Combustion Engines 2026-20096 | Final rule | Oct 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 rule | Sep 30 |
Rescission of Title V Emergency Affirmative Defense Rule; Corrections 2026-19889 | Final rule | Sep 29 |
Sodium Salt of Acifluorfen; Pesticide Tolerance 2026-19884 | Final rule | Sep 29 |
National Emission Standards for Hazardous Air Pollutants for Gasoline Distribution Facilities and Standards of Performance for Bulk Gasoline Terminals Reconsideration 2026-19774 | Proposed rule | Sep 28 |
Marine Protection: Modification To Expand Ocean Dredged Material Disposal Sites Offshore of Corpus Christi, Texas 2026-19745 | Final rule | Sep 28 |
Clarifying the Scope of “Applicable Requirements” Under State Operating Permit Programs and the Federal Operating Permit Program 2026-19671 | Final rule | Sep 25 |
Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS 2026-19668 | Final rule | Sep 25 |
Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS 2026-19667 | Proposed rule | Sep 25 |
Air Plan Approval; Alabama; Transportation Conformity 2026-19566 | Final rule | Sep 24 |
Public Water System Supervision Program Revision for the State of Arkansas 2026-19500 | Proposed rule | Sep 23 |
Air Plan Approval; North Carolina; Charlotte-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS 2026-19495 | Proposed rule | Sep 23 |
Proposed Deletion From the National Priorities List; Correction 2026-19248 | Proposed rule | Sep 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 rule | Sep 17 |
Partial Repeal of the Carbon Pollution Standards for Fossil Fuel-Fired Electric Generating Units 2026-19071 · significant | Final rule | Sep 17 |
Indiana: Approval of State Coal Combustion Residuals Permit Program 2026-19027 | Proposed rule | Sep 16 |
Bacillus amyloliquefaciens strain AT-332; Exemption From the Requirement of a Pesticide Tolerance 2026-18830 | Final rule | Sep 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 rule | Sep 14 |
Clean Data Determination; 1997 8-Hour Ozone Standards; California; Sacramento Metro Area 2026-18755 | Proposed rule | Sep 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 rule | Sep 14 |
Approval and Promulgation of Implementation Plans; California; San Joaquin Valley, Revisions to Motor Vehicle Emissions Budgets for Ozone 2026-18748 | Final rule | Sep 14 |
Wisconsin: Approval of State Coal Combustion Residuals Permit Program 2026-18552 | Proposed rule | Sep 11 |
Air Plan Approvals; Indiana; Prong 4 (Visibility) for the 2015 Ozone National Ambient Air Quality Standard 2026-18334 | Final rule | Sep 9 |
Air Plan Approval; New York; Interstate Transport Requirements for the 2010 SO2 NAAQS 2026-18324 | Final rule | Sep 9 |
Updated Definition of “Waters of the United States” 2026-18317 · significant | Proposed rule | Sep 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 rule | Sep 9 |
Updates to the National Pollutant Discharge Elimination System Definitions and Exclusions 2026-18134 | Proposed rule | Sep 4 |
Renewable Fuel Standard (RFS) Program: Extension of 2025 Compliance Reporting Deadline 2026-18132 | Final rule | Sep 4 |
Alpha-d-Glucopyranoside, Beta-d-Fructofuranosyl, Mixed Palmitates and Stearates in Pesticide Formulations; Exemption From the Requirement of a Tolerance 2026-17579 | Final rule | Aug 28 |
Air Plan Approval; Mississippi; 2010 1-Hour SO2 NAAQS Transport Infrastructure 2026-17503 | Proposed rule | Aug 27 |
Air Plan Approval; Kentucky; Cincinnati-Hamilton Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS 2026-17502 | Proposed rule | Aug 27 |
Air Plan Approval; Kentucky; Louisville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS 2026-17501 | Proposed rule | Aug 27 |
Air Plan Approval; Oklahoma; Regional Haze Plan for the First Implementation Revision; Revision to State Implementation Plan and Requirements 2026-17499 | Proposed rule | Aug 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 rule | Aug 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 rule | Aug 27 |
Air Plan Approval; Arkansas; Regional Haze State Implementation Plan for the Second Implementation Period 2026-17494 | Final rule | Aug 27 |
Air Plan Approval; FL; Emissions Reporting Requirements and Permitting Forms 2026-17490 | Final rule | Aug 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 rule | Aug 27 |
Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology 2026-17486 | Final rule | Aug 27 |
Florida: Final Authorization of State Hazardous Waste Management Program Revisions 2026-17454 | Final rule | Aug 27 |
Significant New Use Rules on Certain Chemical Substances (24-5.5e) 2026-17400 | Final rule | Aug 26 |
Response to Clean Air Act Section 176A Petition From New Hampshire C1-2026-16331 | Proposed rule | Aug 24 |
Carboxin; Pesticide Tolerances 2026-17088 | Final rule | Aug 21 |
Proposed Deletion From the National Priorities List 2026-16994 | Proposed rule | Aug 20 |
Air Plan Approval; SC; Department Name Change 2026-16990 | Final rule | Aug 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 rule | Aug 20 |
Deletion From the National Priorities List 2026-16988 | Final rule | Aug 20 |
Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas 2026-16986 | Final rule | Aug 20 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-June 2026 2026-16976 | Proposed rule | Aug 20 |
Cypermethrin; Pesticide Tolerance(s) 2026-16973 | Final rule | Aug 20 |
Air Plan Approval; South Carolina; Minor Source Permit Program Revisions 2026-16937 | Proposed rule | Aug 19 |
Air Plan Partial Approval and Partial Conditional Approval; South Carolina; Control of Oxides of Nitrogen and Source Testing Requirements 2026-16932 | Proposed rule | Aug 19 |
Air Plan Approval; South Carolina; Minor Source Permit Program Revisions 2026-16930 | Proposed rule | Aug 19 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-May 2026 2026-16724 | Proposed rule | Aug 17 |
Calcium Carbonate; Exemption From the Requirement of a Pesticide Tolerance 2026-16720 | Final rule | Aug 17 |
Approval of Source-Specific Air Quality Implementation Plan; New York; Big Six Towers Inc. 2026-16627 | Final rule | Aug 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 rule | Aug 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 rule | Aug 14 |
Air Plan Approval; Iowa; Interstate Transport Requirements for the 2010 Sulfur Dioxide Standard 2026-16570 | Proposed rule | Aug 14 |
Air Plan Approval; Commonwealth of Virginia; Transfer of Authority and Requests for Certain Public Hearings on Air Permits 2026-16564 | Proposed rule | Aug 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 rule | Aug 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 rule | Aug 13 |
Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley 2026-16511 | Final rule | Aug 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 rule | Aug 13 |
Air Quality Plan; Arizona; Maricopa County Air Quality Department; Gasoline Loading 2026-16335 | Proposed rule | Aug 11 |
Determination To Defer Sanctions; Arizona; Maricopa County Air Quality Department; Gasoline Loading 2026-16334 | Final rule | Aug 11 |
Response to Clean Air Act Section 176A Petition From New Hampshire 2026-16331 | Proposed rule | Aug 11 |
Air Plan Approval; New Hampshire; Repeal of Motor Vehicle Inspection and Maintenance Program 2026-16330 | Proposed rule | Aug 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 rule | Aug 7 |
Bacillus thuringiensis eCry1Gb.1Ig Protein; Exemption From the Requirement of a Pesticide Tolerance 2026-16120 | Final rule | Aug 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 rule | Aug 6 |
Air Plan Approval; Illinois; 2015 Ozone Moderate and Serious Reasonably Available Control Technology Update 2026-16001 | Proposed rule | Aug 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 rule | Aug 6 |
Alaska: Final Authorization of State Hazardous Waste Program 2026-15984 | Final rule | Aug 6 |
Isofetamid; Pesticide Tolerances 2026-15761 | Final rule | Aug 4 |
Permethrin; Pesticide Tolerances 2026-15634 | Final rule | Aug 3 |
Air Plan Approval; Rhode Island; Update to Materials Incorporated by Reference 2026-15493 | Final rule | Jul 31 |
Air Plan Approval; California; San Joaquin Valley Air Pollution Control District 2026-15377 | Final rule | Jul 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 rule | Jul 30 |
Air Plan Approval; Missouri; Construction Permit Exemptions 2026-15371 | Proposed rule | Jul 30 |
Operating Permit Program Approval; New Hampshire; Revised Definitions 2026-15363 | Final rule | Jul 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 rule | Jul 30 |
Significant New Use Rules on Certain Chemical Substances (26-4) 2026-15352 | Proposed rule | Jul 30 |
Perchloroethylene (PCE) and Carbon Tetrachloride (CTC); Regulation under the Toxic Substances Control Act (TSCA); Compliance Date Extensions 2026-15192 | Final rule | Jul 28 |
Epyrifenacil; Pesticide Tolerances; Correction 2026-15191 | Final rule | Jul 28 |
Air Plan Approval; Michigan; Redesignation of the Detroit, MI Area to Attainment of the 2015 Ozone Standards 2026-15168 | Proposed rule | Jul 28 |
Air Plan Approval; Michigan; Redesignation of the Berrien, MI and Muskegon, MI Areas to Attainment of the 2015 Ozone Standards 2026-15167 | Proposed rule | Jul 28 |
Significant New Use Rule on a Certain Chemical Substance; Multi-Walled Carbon Nanotubes 2026-14994 | Final rule | Jul 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 rule | Jul 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 rule | Jul 23 |
Air Plan Approval; Pennsylvania; Revision to Source-Specific Reasonably Available Control Technology (RACT) Requirements 2026-14891 | Proposed rule | Jul 23 |
Air Plan Approval; Maine; Chapter 140: Part 70 Air Emission License Regulation 2026-14885 | Final rule | Jul 23 |
Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer 2026-14880 | Final rule | Jul 23 |
Significant New Use Rules on Certain Chemical Substances (26-3) 2026-14877 | Proposed rule | Jul 23 |
New Source Performance Standards Review for Stationary Combustion Turbines and Stationary Gas Turbines; Correction 2026-14371 | Final rule | Jul 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 rule | Jul 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 rule | Jul 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 rule | Jul 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 rule | Jul 16 |
Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations 2026-14322 | Final rule | Jul 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 rule | Jul 16 |
Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Source Review; Stationary Source Permits 2026-14317 | Final rule | Jul 16 |
Air Plan Approval; Wisconsin; Source-Specific Air Quality Implementation Plan; Oak Creek Power Plant 2026-14282 | Proposed rule | Jul 15 |
Approval of Source-Specific Air Quality Implementation Plan; New York; Castleton Power, LLC 2026-14261 | Proposed rule | Jul 15 |
Air Plan Approval; Missouri; Control of NOX Emissions From Large Stationary Internal Combustion Engines 2026-14260 | Proposed rule | Jul 15 |
Alabama: Approval of State Coal Combustion Residuals Permit Program 2026-14118 | Proposed rule | Jul 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 rule | Jul 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 rule | Jul 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 rule | Jul 14 |
Approval and Promulgation of Implementation Plans; California; San Joaquin Valley; Revisions to Motor Vehicle Emissions Budgets for Ozone 2026-13845 | Proposed rule | Jul 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 rule | Jul 9 |
Minor New Source Review Program Air Permitting Public Participation Requirements for State Implementation Plans 2026-13667 · significant | Proposed rule | Jul 7 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-April 2026 2026-13557 | Proposed rule | Jul 6 |
National Emission Standards for Hazardous Air Pollutants: Plywood and Composite Wood Products 2026-13550 | Final rule | Jul 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 rule | Jul 2 |
Air Plan Approval; Alabama; Transportation Conformity 2026-13403 | Proposed rule | Jul 2 |
Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP Provisions 2026-13398 | Final rule | Jul 2 |
Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment Area 2026-13396 | Final rule | Jul 2 |
Revisions To Establish the Sixth Unregulated Contaminant Monitoring Rule (UCMR 6) for Public Water Systems 2026-13263 · significant | Proposed rule | Jul 1 |
Fluoxapiprolin; Pesticide Tolerances 2026-13198 | Final rule | Jun 30 |
Epyrifenacil; Pesticide Tolerances 2026-13193 | Final rule | Jun 30 |
Chlormequat Chloride; Pesticide Tolerances 2026-13185 | Final rule | Jun 30 |
Diflufenican; Pesticide Tolerances 2026-13180 | Final rule | Jun 30 |
Bifenthrin; Pesticide Tolerances 2026-13174 | Final rule | Jun 30 |
Air Plan Approval; Ohio; Redesignation of the Cleveland, OH Area to Attainment of the 2015 Ozone Standard 2026-13027 | Final rule | Jun 29 |
Air Quality Plan; California; Mojave Desert Air Quality Management District; Rescissions of Outdated Requirements Within Riverside County 2026-12935 | Proposed rule | Jun 26 |
U.S. Ecology Nevada, Inc. High Mercury Subcategory Wastes Land Disposal Restrictions Variance 2026-12927 · significant | Final rule | Jun 26 |
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT and SIP Strengthening for Ohio 2026-12921 | Final rule | Jun 26 |
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT 2026-12920 | Final rule | Jun 26 |
Cinnamaldehyde in Pesticide Formulations; Exemption From the Requirement for a Tolerance 2026-12913 | Final rule | Jun 26 |
Air Plan Approval; District of Columbia; Creation of Synthetic Minor Permit Program 2026-12898 | Final rule | Jun 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 rule | Jun 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 rule | Jun 26 |
Update of Procedures for Implementing the National Environmental Policy Act and Assessing the Environmental Effects Abroad of EPA Actions 2026-12862 | Proposed rule | Jun 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 rule | Jun 23 |
No-Migration Variance From Land Disposal Restrictions for Clean Harbors Grassy Mountain, Utah 2026-12544 | Final rule | Jun 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 rule | Jun 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 rule | Jun 22 |
EPCRA Hazardous Chemical Inventory Reporting Requirements: Conformity With the 2024 OSHA Hazard Communication Standard 2026-12426 | Final rule | Jun 22 |
Congressional Review Act Revocation of 2024 Amendments to the National Emission Standards for Hazardous Air Pollutants: Rubber Tire Manufacturing 2026-12424 | Final rule | Jun 22 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-March 2026 2026-12417 | Proposed rule | Jun 22 |
Air Plan Approval; OR; Update to Materials Incorporated by Reference 2026-12415 | Final rule | Jun 22 |
Resin Acids, Esters With Glycerol in Pesticide Formulations; Exemption From the Requirement for a Tolerance 2026-12272 | Final rule | Jun 18 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-February 2026 2026-11942 | Proposed rule | Jun 15 |
Sodium Nitrate in Pesticide Formulations; Exemption From the Requirement of a Tolerance 2026-11941 | Final rule | Jun 15 |
Pydiflumetofen; Pesticide Tolerances 2026-11940 | Final rule | Jun 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 rule | Jun 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 rule | Jun 12 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-January 2026 2026-11844 | Proposed rule | Jun 12 |
Ozone Reclassification State Implementation Plan Rule 2026-11843 | Proposed rule | Jun 12 |
Attainment Date Extension for the South Coast, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area 2026-11736 | Proposed rule | Jun 11 |
Attainment Date Extension for the San Joaquin Valley, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area 2026-11735 | Proposed rule | Jun 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 rule | Jun 11 |
Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction 2026-11731 | Final rule | Jun 11 |
Air Plan Approval; Connecticut; Ozone Ambient Air Quality Standard and Adhesive and Sealants Regulation Revisions 2026-11728 | Final rule | Jun 11 |
Significant New Use Rules on Certain Chemical Substances (26-1) 2026-11593 | Proposed rule | Jun 10 |
Approval and Promulgation of Air Quality Implementation Plans; Wyoming; Regional Haze Federal Implementation Plan 2026-11436 | Proposed rule | Jun 8 |
Air Plan Approval; Minnesota; Revision to Taconite Federal Implementation Plan 2026-11432 | Final rule | Jun 8 |
Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for 2025; Correction 2026-11360 | Final rule | Jun 5 |
Significant New Use Rules on Certain Chemical Substances (25-3.5e) 2026-11319 | Proposed rule | Jun 5 |
Louisiana: Approval of State Coal Combustion Residuals Permit Program 2026-11312 | Proposed rule | Jun 5 |
Clean Air Act Title V Operating Permit Program Revision; District of Columbia 2026-11170 | Final rule | Jun 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 rule | Jun 4 |
Conditional Approval; Contingency Measure State Implementation Plan for the 2008 Ozone Standards; San Joaquin Valley, California 2026-11168 | Final rule | Jun 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 rule | Jun 3 |
Rescinding the Regulations for Arbitration Requirements and Procedures for Small Superfund Cost Recovery Claims 2026-11052 | Proposed rule | Jun 3 |
National Emission Standards for Hazardous Air Pollutants From Hazardous Waste Combustors: Residual Risk and Technology Review 2026-11047 · significant | Final rule | Jun 3 |
Rescission of Title V Emergency Affirmative Defense Rule 2026-10875 | Final rule | Jun 1 |
Regulation for Federal Financial Assistance 2026-10817 | Proposed rule | May 29 |
Air Plan Approval; Indiana; Keystone VOC RACT Alternative Control 2026-10776 | Final rule | May 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 rule | May 29 |
Approval of Source-Specific Air Quality Implementation Plan; New York; Calpine JFK Energy Center 2026-10770 | Final rule | May 29 |
Air Plan Approval; New York; Athens Generating Plant 2026-10769 | Final rule | May 29 |
Designation of Areas for Air Quality Planning Purposes; Michigan; Technical Amendment 2026-10768 | Final rule | May 29 |
Air Plan Approval; Michigan; Determination of Attainment by the Attainment Date for the 2015 Ozone Standards 2026-10767 | Proposed rule | May 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 rule | May 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 rule | May 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 rule | May 29 |
Air Plan Approval; Virginia; Repeal of Existing Stationary Source Regulations 2026-10745 | Final rule | May 29 |
South Carolina; Approval of State Plan for Control of Emissions From Commercial and Industrial Solid Waste Incineration Units 2026-10744 | Final rule | May 29 |
Approval and Promulgation of State Air Quality Plans (Negative Declarations) for Designated Facilities and Pollutants; District of Columbia 2026-10739 | Final rule | May 29 |
Air Plan Approval; ID; Update to Materials Incorporated by Reference 2026-10738 | Final rule | May 29 |
Significant New Use Rules on Certain Chemical Substances (25-2.5e) 2026-10712 | Final rule | May 29 |
Propylene Oxide; Pesticide Tolerances 2026-10711 | Final rule | May 29 |
Bacillus Thuringiensis Cry1B.34.1, Bacillus Thuringiensis Cry1B.61.1 and Adiantum Trapeziforme var. Braziliense IPD083Cb Proteins; Pesticide Tolerances 2026-10709 | Final rule | May 29 |
Air Plan Approval; Ohio; Removal of Air Nuisance Rule 2026-10643 | Proposed rule | May 28 |
Approval of Source-Specific Air Quality Implementation Plan; New York; Big Six Towers Inc. 2026-10642 | Proposed rule | May 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 rule | May 28 |
Air Plan Approval; SC; Department Name Change 2026-10640 | Proposed rule | May 28 |
Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors; Extension of Comment Period 2026-10638 | Proposed rule | May 28 |
Phasedown of Hydrofluorocarbons: Excluding Road and Intermodal Container Transport Refrigeration Units From the Hydrofluorocarbon Leak Repair Requirements 2026-10388 | Proposed rule | May 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 rule | May 26 |
Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Gila County Reasonably Available Control Technology 2026-10280 | Final rule | May 22 |
Aluminum in Pesticide Formulations; Exemption From the Requirement for a Tolerance 2026-10267 | Final rule | May 22 |
Significant New Use Rules on Certain Chemical Substances (25-1.5e) 2026-10264 | Final rule | May 22 |
Reporting Deadline Extension for the Health and Safety Data Reporting Rule Under Toxic Substance Control Act (TSCA) Section 8(d) 2026-10263 | Final rule | May 22 |
Air Plan Approval; FL; Emissions Reporting Requirements and Permitting Forms 2026-10207 | Proposed rule | May 21 |
Significant New Use Rules on Certain Chemical Substances (26-2); Extension of Comment Period 2026-10161 | Proposed rule | May 21 |
Extending the Compliance Deadline for the PFOA and PFOS Maximum Contaminant Levels 2026-10086 · significant | Proposed rule | May 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 rule | May 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 rule | May 18 |
Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Unmanaged Combustion Residual Leachate 2026-09895 · significant | Proposed rule | May 18 |
Air Plan Approval; Montana; Revisions to Western Sugar Stipulation 2026-09619 | Final rule | May 14 |
Air Plan Approval; Minnesota; Metropolitan Council Wastewater Treatment Plant Title I PM10 SIP Revisions 2026-09618 | Final rule | May 14 |
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements 2026-09616 | Final rule | May 14 |
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Washington; Northwest Clean Air Agency 2026-09615 | Final rule | May 14 |
Air Plan Approval; Ohio; Clean Data Determination for the Cleveland, Ohio Area for the 2015 Ozone Standard 2026-09614 | Final rule | May 14 |
Air Plan Approval; Illinois; Moderate Attainment Plan Elements for the Chicago and Metro East Areas for the 2015 Ozone Standard 2026-09613 | Final rule | May 14 |
Air Plan Approval; Indiana; Indiana NOX Emissions Monitoring 2026-09612 | Final rule | May 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 rule | May 14 |
Alaska: Tentative Determination on Final Authorization of State Hazardous Waste Management Program 2026-09603 | Proposed rule | May 14 |
Begin Actual Construction in the New Source Review (NSR) Preconstruction Permitting Program 2026-09524 · significant | Proposed rule | May 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 rule | May 13 |
Definition of Hazardous Waste Applicable to Corrective Action for Releases From Solid Waste Management Units; Withdrawal 2026-09179 · significant | Proposed rule | May 8 |
Air Plan Approval; NC; Removal of the State's Vehicle Inspection and Maintenance Program 2026-09146 | Proposed rule | May 8 |
Air Quality Plan; California; San Diego County Air Pollution Control District; Landfill Flares 2026-09055 | Proposed rule | May 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 rule | May 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 rule | May 7 |
Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA) 2026-08750 · significant | Final rule | May 5 |
Virginia: Approval of State Coal Combustion Residuals Permit Program 2026-08662 | Proposed rule | May 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 rule | May 1 |
Air Plan Approval; Delaware; Excess Emissions Provisions Pertaining to Periods of Startup, Shutdown and Malfunction Events 2026-08373 | Proposed rule | Apr 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 rule | Apr 30 |
Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors 2026-08364 | Proposed rule | Apr 29 |
Approval of Missouri's Request for Partial Program Delegation of Clean Air Act 112(r) Prevention of Accidental Release Program 2026-08348 | Final rule | Apr 29 |
Significant New Use Rules on Certain Chemical Substances (26-2) 2026-08012 | Proposed rule | Apr 24 |
Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer 2026-07906 | Proposed rule | Apr 23 |
Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology 2026-07905 | Proposed rule | Apr 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 rule | Apr 23 |
Hazardous Waste Management System; Identification and Listing of Hazardous Waste; Correction 2026-07899 | Proposed rule | Apr 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 rule | Apr 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 rule | Apr 23 |
Air Plan Approval; Virginia; Revision to the Regulatory Definition of Volatile Organic Compound 2026-07885 | Final rule | Apr 23 |
Air Plan Approval; Missouri; Construction Permits Required 2026-07884 | Final rule | Apr 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 rule | Apr 22 |
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides (Hydrogen Cyanide, et al.) 2026-07794 | Final rule | Apr 22 |
Methoxyfenozide; Pesticide Tolerances 2026-07560 | Final rule | Apr 17 |
Air Plan Approval; Virginia; Amendment to the State Operating Permit for GP Big Island, LLC 2026-07527 | Final rule | Apr 17 |
Air Plan Revisions; Arizona; Maricopa County Air Quality Department; New Source Review; Emission Reduction Credits 2026-07405 | Proposed rule | Apr 16 |
Air Plan Approval; Arizona; Interstate Transport Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standards 2026-07400 | Final rule | Apr 16 |
Air Plan Approval; Pennsylvania; Redesignation Request for the Allegheny County Area for the 2012 Annual Fine Particulate Matter Standard 2026-07399 | Final rule | Apr 16 |
Air Plan Approval; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns 2026-07398 | Final rule | Apr 16 |
National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal; Correction 2026-07396 · significant | Final rule | Apr 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 rule | Apr 13 |
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Legacy/CCRMU Amendments 2026-07061 · significant | Proposed rule | Apr 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 rule | Apr 10 |
Polyethylhexyl Glycidyl Ether Polyethylene Oxide Copolymer in Pesticide Formulations; Exemption From the Requirement for a Tolerance 2026-06953 | Final rule | Apr 10 |
Air Plan Approval; Ohio; Redesignation of the Cleveland, OH Area to Attainment of the 2015 Ozone Standards 2026-06943 | Proposed rule | Apr 10 |
Air Plan Approvals; Indiana; Prong 4 (Visibility) for the 2015 Ozone National Ambient Air Quality Standard 2026-06942 | Proposed rule | Apr 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 rule | Apr 10 |
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT for Ohio 2026-06940 | Proposed rule | Apr 10 |
Air Plan Approval; New York; Interstate Transport Requirements for the 2010 SO2 NAAQS 2026-06938 | Proposed rule | Apr 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 rule | Apr 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 rule | Apr 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 rule | Apr 9 |
Air Plan Approval; Missouri; Revisions to Existing Rule 10 CSR 10-5.570; Control of Sulfur Emissions From Stationary Boilers 2026-06832 | Final rule | Apr 9 |
Air Plan Approval; Missouri; Revisions to Existing Rule 10 CSR 10-5.570; Control of Sulfur Emissions From Stationary Boilers 2026-06831 | Proposed rule | Apr 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 rule | Apr 9 |
Update to EPAAR Text of Provisions and Clauses, Signing of Uniform Hazardous Wastes Manifests 2026-06775 | Proposed rule | Apr 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 rule | Apr 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 rule | Apr 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 rule | Apr 6 |
Drinking Water Contaminant Candidate List 6-Draft 2026-06662 | Proposed rule | Apr 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 rule | Apr 2 |
Clean Air Act Operating Permit Program Revision; California; Monterey Bay Air Resources District 2026-06443 | Proposed rule | Apr 2 |
Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas 2026-06442 | Proposed rule | Apr 2 |
Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction 2026-06441 | Proposed rule | Apr 2 |
Lead-Based Paint Poisoning Prevention in Certain Residential Structures 2026-06404 | Final rule | Apr 2 |
Air Plan Approval; Ohio; Ohio Permit Rules Revisions 2026-06398 | Final rule | Apr 2 |
Air Plan Approval; Ohio; Muskingum River 2010 Sulfur Dioxide Redesignation and Maintenance Plan 2026-06397 | Final rule | Apr 2 |
Air Plan Approval; Michigan; Detroit 2010 Sulfur Dioxide Redesignation and Maintenance Plan 2026-06396 | Final rule | Apr 2 |
Ohio: Authorization of State Hazardous Waste Management Program Revisions 2026-06395 | Final rule | Apr 2 |
Air Plan Approval; Oregon; 2024 Vehicle Inspection Program Updates 2026-06388 | Final rule | Apr 2 |
Air Quality Plan; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements; Correction 2026-06386 | Final rule | Apr 2 |
Air Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision 2026-06384 | Final rule | Apr 2 |
National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review 2026-06304 | Final rule | Apr 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 rule | Apr 1 |
Reporting Deadline Extension for the Health and Safety Data Reporting Rule Under Toxic Substance Control Act (TSCA) Section 8(d) 2026-06066 | Proposed rule | Mar 30 |
Perchloroethylene (PCE) and Carbon Tetrachloride (CTC); Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extensions 2026-05977 | Proposed rule | Mar 27 |
Hazardous Waste Management System; Identification and Listing of Hazardous Waste 2026-05876 | Proposed rule | Mar 26 |
Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations 2026-05875 | Proposed rule | Mar 26 |
Florida: Final Authorization of State Hazardous Waste Management Program Revisions 2026-05863 | Proposed rule | Mar 26 |
Florida: Final Authorization of State Hazardous Waste Management Program Revisions 2026-05862 | Final rule | Mar 26 |
Dimethylpolysiloxane in Pesticide Formulations; Exemption From the Requirement for a Tolerance 2026-05773 | Final rule | Mar 25 |
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Washington; Southwest Clean Air Agency 2026-05712 | Final rule | Mar 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 rule | Mar 23 |
Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Source Review; Stationary Source Permits 2026-05636 | Proposed rule | Mar 23 |
Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth Ozone Nonattainment Area 2026-05607 | Final rule | Mar 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 rule | Mar 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 rule | Mar 23 |
Air Plan Approval; Texas; Reasonably Available Control Technology in the Houston-Galveston-Brazoria Ozone Nonattainment Area 2026-05596 | Final rule | Mar 23 |
Approval of Clean Air Plans; San Joaquin Valley, California; Contingency Measures for 1997 Ozone Standards 2026-05592 | Final rule | Mar 23 |
Air Plan Revisions; California; Mojave Desert Air Quality Management District; New Source Review; Stationary Source Permits 2026-05591 | Final rule | Mar 23 |
Protecting Public Health and Unleashing American Energy by Facilitating Scrap Tire Pile Cleanups 2026-05586 | Proposed rule | Mar 23 |
Air Plan Approval; Ohio; Volatile Organic Compounds RFD Beaufort 2026-05568 | Final rule | Mar 23 |
Air Plan Approval; New Hampshire; Single Source VOC RACT Order for Hutchinson Sealing Systems 2026-05567 | Final rule | Mar 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 rule | Mar 20 |
National Emission Standards for Marine Tank Vessel Loading Operations: Technology Review C1-2026-04304 | Proposed rule | Mar 19 |
Colorado Underground Injection Control Program; Class VI Primacy 2026-05453 | Proposed rule | Mar 19 |
Announcement of Final Regulatory Determinations for Contaminants on the Fifth Drinking Water Contaminant Candidate List 2026-05452 | Final rule | Mar 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 rule | Mar 19 |
National Emission Standards for Hazardous Air Pollutants: Polyether Polyols Production Industry Review 2026-05261 | Final rule | Mar 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 rule | Mar 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 rule | Mar 13 |
National Priorities List 2026-04904 | Final rule | Mar 13 |
Air Plan Approval; Michigan; Clean Data Determination for the Berrien, MI and Muskegon, MI Areas for the 2015 Ozone Standards 2026-04851 | Proposed rule | Mar 12 |
Marine Protection: Modification To Expand Ocean Dredged Material Disposal Sites Offshore of Corpus Christi, Texas 2026-04848 | Proposed rule | Mar 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 rule | Mar 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 rule | Mar 10 |
Clean Water Act Hazardous Substance Facility Response Plans: Compliance Date Delay and Changes To Reflect Administration Policy 2026-04388 | Proposed rule | Mar 5 |
Paper Manifest Sunset Rule; Modification of the Hazardous Waste Manifest Regulations 2026-04366 | Proposed rule | Mar 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 rule | Mar 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 rule | Mar 4 |
Air Plan Approval; OR; Klamath Falls PM2.5 Redesignation to Attainment and Maintenance Plan 2026-04333 | Proposed rule | Mar 4 |
Proposed Deletion From the National Priorities List 2026-04321 | Proposed rule | Mar 4 |
Deletion From the National Priorities List 2026-04320 | Final rule | Mar 4 |
National Emission Standards for Marine Tank Vessel Loading Operations: Technology Review 2026-04304 | Proposed rule | Mar 4 |
Air Plan Approval; AK; Regional Haze State Implementation Plan for the Second Implementation Period 2026-04159 | Final rule | Mar 3 |
Interstate Transport Plan Review for the 2015 Ozone NAAQS 2026-04151 | Proposed rule | Mar 3 |
Removal of the Federal Reformulated Gasoline Program From the Kentucky Portion of the Louisville Area 2026-04127 | Final rule | Mar 2 |
Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for 2025 2026-03995 | Final rule | Feb 27 |
Implementing Statutory Addition of Certain Per- and Polyfluoroalkyl Substances (PFAS) to the Toxics Release Inventory Beginning With Reporting Year 2026 2026-03944 | Final rule | Feb 27 |
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Maleic Hydrazide, et al. 2026-03942 | Final rule | Feb 27 |
Pyridate; Pesticide Tolerances 2026-03938 | Final rule | Feb 27 |
Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology 2026-03937 | Proposed rule | Feb 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 rule | Feb 27 |
Air Plan Approval; Ohio; Clean Data Determination for the Cleveland, Ohio Area for the 2015 Ozone Standard 2026-03934 | Proposed rule | Feb 27 |
Air Plan Approval; Indiana; Keystone VOC RACT Alternative Control 2026-03933 | Proposed rule | Feb 27 |
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT and SIP Strengthening for Ohio 2026-03931 | Proposed rule | Feb 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 rule | Feb 26 |
Air Plan Approval; Missouri; Reporting Emission Data, Emission Fees, and Process Information 2026-03888 | Final rule | Feb 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 rule | Feb 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 rule | Feb 26 |
No-Migration Variance From Land Disposal Restrictions for Clean Harbors Lone Mountain, Oklahoma 2026-03879 | Final rule | Feb 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 rule | Feb 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 rule | Feb 26 |
Wyoming: Approval of State Coal Combustion Residuals Permit Program 2026-03820 | Final rule | Feb 26 |
Prior Notice of Citizen Suits 2026-03646 | Proposed rule | Feb 24 |
National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal 2026-03638 · significant | Final rule | Feb 24 |
Accidental Release Prevention Requirements: Risk Management Programs Under the Clean Air Act; Common Sense Approach to Chemical Accident Prevention 2026-03633 · significant | Proposed rule | Feb 24 |
Inpyrfluxam; Pesticide Tolerances 2026-03423 | Final rule | Feb 20 |
Pydiflumetofen; Pesticide Tolerances 2026-03421 | Final rule | Feb 20 |
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Diphenylamine, et al. 2026-03371 | Final rule | Feb 20 |
Imidacloprid; Pesticide Tolerance(s) 2026-03368 | Final rule | Feb 20 |
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Terbacil, et al. 2026-03366 | Final rule | Feb 20 |
Clean Water Act Hazardous Substance Facility Response Plans; Amendment Reconsideration 2026-03220 | Proposed rule | Feb 18 |
Rescission of the Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under the Clean Air Act 2026-03157 · significant | Final rule | Feb 18 |
Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA) 2026-03155 · significant | Final rule | Feb 18 |
Glufosinate; Pesticide Tolerances C1-2025-20399 | Final rule | Feb 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 rule | Feb 17 |
Afidopyropen; Pesticide Tolerances 2026-02933 | Final rule | Feb 13 |
Rice Bran Wax in Pesticide Formulations; Exemption From the Requirement for a Tolerance 2026-02926 | Final rule | Feb 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 rule | Feb 13 |
Hexythiazox; Pesticide Tolerances 2026-02916 | Final rule | Feb 13 |
Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Gila County Reasonably Available Control Technology 2026-02845 | Proposed rule | Feb 12 |
Approval and Promulgation of Air Quality Implementation Plans; Oklahoma; Regional Haze State Implementation Plan for the Second Implementation Period 2026-02843 | Proposed rule | Feb 12 |
Air Plan Approval; Illinois; Moderate Attainment Plan Elements for the Chicago and Metro East Areas for the 2015 Ozone Standard 2026-02842 | Proposed rule | Feb 12 |
Air Plan Approval; Oklahoma; Interstate Transport Requirements for the 2010 SO2 NAAQS 2026-02841 | Proposed rule | Feb 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 rule | Feb 12 |
Air Plan Approval; Ohio; Second Maintenance Plan for 2008 Ozone NAAQS 2026-02822 | Final rule | Feb 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 rule | Feb 12 |
Deletion From the National Priorities List; Correction 2026-02809 | Final rule | Feb 12 |
Voluntary Consensus Standards Update; Formaldehyde Emission Standards for Composite Wood Products 2026-02715 | Proposed rule | Feb 11 |
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; CCR Management Unit Deadline Extension Rule 2026-02599 | Final rule | Feb 10 |
Air Plan Approval; AK; Updates to Materials Incorporated by Reference 2026-02478 | Final rule | Feb 9 |
Air Plan Approval; Connecticut; Revised Format for Materials Incorporated by Reference 2026-02477 | Final rule | Feb 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 rule | Feb 6 |
Air Plan Revisions; California; Heavy-Duty Vehicle Inspection and Maintenance Program 2026-02350 | Final rule | Feb 6 |
US Ecology Nevada, Inc. High Mercury Subcategory Wastes Land Disposal Restrictions Variance 2026-02346 · significant | Proposed rule | Feb 6 |
Approval and Promulgation of Air Quality Implementation Plans; Nevada; Regional Haze State Implementation Plan for the Second Implementation Period 2026-02344 | Final rule | Feb 6 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals In or On Various Commodities-December 2025 2026-01991 | Proposed rule | Feb 2 |
Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Deadline Extensions; Correction 2026-01913 | Final rule | Jan 30 |
Chlorate; Exemption From the Requirement of a Pesticide Tolerance 2026-01902 | Final rule | Jan 30 |
PDHP 68949; Exemption From the Requirement of a Tolerance 2026-01901 | Final rule | Jan 30 |
Interstate Transport Plan Review for the 2015 Ozone NAAQS 2026-01844 · significant | Proposed rule | Jan 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 rule | Jan 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 rule | Jan 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 rule | Jan 29 |
Air Plan Approval; OR; Lane County Permitting Rule Revisions 2026-01735 | Final rule | Jan 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 rule | Jan 29 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-November 2025 2026-01654 | Proposed rule | Jan 28 |
Freedom of Information Act Regulations Update 2026-01511 | Proposed rule | Jan 27 |
Air Plan Disapproval; Colorado; Regional Haze Plan for the Second Implementation Period 2026-01413 | Final rule | Jan 26 |
Air Plan Approval; Arkansas; Codification of the State Implementation Plan 2026-01410 | Final rule | Jan 26 |
Air Plan Approval; Oklahoma; Revisions to Air Pollution Control Rules 2026-01408 | Final rule | Jan 26 |
Air Plan Approval; Indiana; Regional Haze Plan for the Second Implementation Period 2026-01406 | Final rule | Jan 26 |
Air Plan Approval; Montana; Revisions to Western Sugar Stipulation 2026-01324 | Proposed rule | Jan 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 rule | Jan 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 rule | Jan 23 |
Air Plan Approval; Ohio; 2015 Ozone Moderate Reasonably Available Control Technology 2026-01001 | Final rule | Jan 20 |
Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley 2026-00782 | Proposed rule | Jan 15 |
Updating the Water Quality Certification Regulations 2026-00754 | Proposed rule | Jan 15 |
New Source Performance Standards Review for Stationary Combustion Turbines and Stationary Gas Turbines 2026-00677 · significant | Final rule | Jan 15 |
Pyriofenone; Pesticide Tolerances 2026-00628 | Final rule | Jan 14 |
Permethrin; Pesticide Tolerances 2026-00545 | Final rule | Jan 14 |
Air Plan Approval; New York; Ortho Clinical Diagnostics 2026-00281 | Final rule | Jan 9 |
Technical Amendments to the EPCRA Hazardous Chemical Inventory Reporting Requirements To Conform to the 2024 OSHA Hazard Communication Standard; Withdrawal 2026-00259 | Final rule | Jan 9 |
Air Plan Approval; Ohio; Ohio Permit Rules Revisions 2026-00258 | Proposed rule | Jan 9 |
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Ohio; Delegation of Authority 2026-00253 | Final rule | Jan 9 |
Air Plan Approval; New Hampshire; Updates to Materials Incorporated by Reference 2026-00249 | Final rule | Jan 9 |
Air Plan Approval; Indiana; Huntington County 2010 Sulfur Dioxide Redesignation and Maintenance Plan 2026-00246 | Final rule | Jan 9 |
Clean Air Act Title V Operating Permit Program Revision; District of Columbia 2026-00215 | Proposed rule | Jan 8 |
Air Plan Approval; Missouri; Construction Permits Required 2026-00214 | Proposed rule | Jan 8 |
Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements 2026-00208 | Final rule | Jan 8 |
Air Plan Approval; Kentucky; Emissions Inventory and Nonattainment New Source Review for the Henderson-Webster Sulfur Dioxide Nonattainment Area 2026-00201 | Final rule | Jan 8 |
Air Plan Approval; California; Mojave Desert Air Quality Management District; Definition of Terms 2026-00194 | Final rule | Jan 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 rule | Jan 7 |
National Primary Drinking Water Regulation for Perchlorate 2026-00021 · significant | Proposed rule | Jan 6 |
Utah; Northern Wasatch Front; 2015 8-Hour Ozone Nonattainment Area Boundary Expansion and Applicability of Certain Clean Air Act Requirements 2026-00007 | Final rule | Jan 6 |
Air Plan Revision; California; Placer County Air Pollution Control District; New Source Review 2026-00006 | Final rule | Jan 6 |
Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District 2026-00005 | Final rule | Jan 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 rule | Jan 6 |
Extension of the State Implementation Plan Due Date for the Regional Haze Third Implementation Period 2026-00003 | Final rule | Jan 6 |
Air Plan Approval; Michigan and Minnesota; Revision to Taconite Federal Implementation Plan 2025-24207 | Final rule | Jan 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 rule | Jan 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 rule | Jan 2 |
National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma 2025-24149 | Final rule | Jan 2 |
Air Plan Approval; Colorado; Revisions to Colorado Procedural Rules and Common Provisions Regulation 2025-24141 | Final rule | Jan 2 |
Air Plan Approval; CO; Revisions to Colorado Procedural Rules and Common Provisions Regulation 2025-24140 | Proposed rule | Jan 2 |
No-Migration Variance From Land Disposal Restrictions for Clean Harbors Grassy Mountain, Utah 2025-24134 | Proposed rule | Dec 31, 2025 |
Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Deadline Extensions 2025-24102 | Final rule | Dec 31, 2025 |
Regulation of Fuels, Fuel Additives, and Regulated Blendstocks 2025-24084 | Final rule | Dec 31, 2025 |
Air Plan Approval; South Carolina; Second Planning Period Regional Haze Plan C1-2025-22565 | Final rule | Dec 30, 2025 |
Petition To Delist Hazardous Air Pollutant: 2-Butoxyethyl Benzoate (2-BEB) 2025-23566 | Proposed rule | Dec 22, 2025 |
Thiamethoxam; Pesticide Tolerances 2025-23424 | Final rule | Dec 19, 2025 |
Flupyradifurone; Pesticide Tolerance for Emergency Exemption 2025-23420 | Final rule | Dec 19, 2025 |
New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Louisiana 2025-23284 | Final rule | Dec 18, 2025 |
New Source Performance Standards; Delegation of Authority to Oklahoma 2025-23275 | Final rule | Dec 18, 2025 |
Air Plan Approval: Arizona: Infrastructure Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standard 2025-23259 | Final rule | Dec 18, 2025 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-October 2025 2025-22937 | Proposed rule | Dec 16, 2025 |
SpCas9 Protein; Exemption From the Requirement of a Tolerance 2025-22927 | Final rule | Dec 16, 2025 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-August 2025 2025-22756 | Proposed rule | Dec 15, 2025 |
Air Plan Approval; New Hampshire; Single Source VOC RACT Order for Hutchinson Sealing Systems 2025-22610 | Proposed rule | Dec 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 rule | Dec 11, 2025 |
Air Plan Approval; Connecticut; Plan Submittals for the 2008 Ozone National Ambient Air Quality Standard 2025-22595 | Final rule | Dec 11, 2025 |
Air Plan Disapproval; Ohio; E-Check Attestation Provisions 2025-22594 | Proposed rule | Dec 11, 2025 |
Air Plan Approval; California; South Coast Air Quality Management District 2025-22584 | Final rule | Dec 11, 2025 |
Approval of Air Quality Implementation Plans; Arizona; Arizona Department of Environmental Quality; Stationary Source Permits; West Pinal County; PM10 2025-22582 | Final rule | Dec 11, 2025 |
Air Plan Approval; South Carolina; Second Planning Period Regional Haze Plan 2025-22565 | Final rule | Dec 11, 2025 |
Air Plan Approval; Tennessee; Second Period Regional Haze Plan 2025-22564 | Final rule | Dec 11, 2025 |
Air Plan Approval; Ohio; Carmeuse Lime, Inc. SO2 2025-22562 | Final rule | Dec 11, 2025 |
No-Migration Variance From Land Disposal Restrictions for Clean Harbors Lone Mountain, Oklahoma 2025-22553 | Proposed rule | Dec 11, 2025 |
Air Plan Approval; Virginia; Amendment to the State Operating Permit for GP Big Island, LLC 2025-22533 | Proposed rule | Dec 11, 2025 |
Air Plan Approval; California; San Joaquin Valley Air Pollution Control District 2025-22530 | Proposed rule | Dec 11, 2025 |
Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Atrazine, et al. 2025-22519 | Proposed rule | Dec 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 rule | Dec 11, 2025 |
Azoxystrobin; Pesticide Tolerances 2025-22174 | Final rule | Dec 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 rule | Dec 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 rule | Dec 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 rule | Dec 3, 2025 |
National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review 2025-21787 | Final rule | Dec 3, 2025 |
Environmental Protection Agency Acquisition Regulation (EPAAR); Special Contracting Methods; Options; Contracts; Withdrawal 2025-21713 | Final rule | Dec 1, 2025 |
Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-September 2025 2025-21679 | Proposed rule | Dec 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 rule | Nov 28, 2025 |
Air Plan Approval; Virginia; Repeal of Existing Stationary Source Regulations 2025-21557 | Proposed rule | Nov 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 rule | Nov 28, 2025 |
Air Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision 2025-21413 | Proposed rule | Nov 28, 2025 |
Air Plan Approval; Missouri; Reporting Emission Data, Emission Fees, and Process Information 2025-21346 | Proposed rule | Nov 28, 2025 |
Air Plan Approval; Montana; Regional Haze Plan for the Second Implementation Period 2025-21340 | Final rule | Nov 28, 2025 |
Air Plan Approval; Ohio; Emergency Episodes and Ambient Air Quality Standards 2025-21322 | Final rule | Nov 26, 2025 |
Air Plan Approval; Ohio; Emergency Episodes and Ambient Air Quality Standards 2025-21321 | Proposed rule | Nov 26, 2025 |
Delegation of Authority to North Carolina and Forsyth County of the Federal Plan for Existing Landfills 2025-21306 | Final rule | Nov 26, 2025 |
Propyzamide; Extension of Tolerance for Emergency Exemption 2025-21200 | Final rule | Nov 26, 2025 |
Review of National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review; Reopening of Comment Period 2025-20753 | Proposed rule | Nov 24, 2025 |
Air Plan Approval; Indiana; Second Maintenance Plan for 2008 Ozone NAAQS 2025-20672 | Proposed rule | Nov 21, 2025 |
Air Plan Approval; New York; Athens Generating Plant 2025-20499 | Proposed rule | Nov 20, 2025 |
Air Plan Approval; Maine; Chapter 140: Part 70 Air Emission License Regulation 2025-20498 | Proposed rule | Nov 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 rule | Nov 20, 2025 |
Operating Permit Program Approval; New Hampshire; Revised Definitions 2025-20496 | Proposed rule | Nov 20, 2025 |
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements 2025-20495 | Final rule | Nov 20, 2025 |