Environmental Protection Agency: federal rules
The Environmental Protection Agency published 238 final rules in 2026 so far and 263 in 2025, counted by the Tribune from the Federal Register.
Built by the Tribune's code from the Federal Register. No AI wrote this page. Updated Nov. 2, 2026.
Final rules 501
- Oct. 30, 2026Dimethyl Sulfoxide in Pesticide Formulations; Exemptions From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180
- Oct. 28, 2026
- Oct. 22, 2026
- Oct. 22, 2026Virginia: Approval of State Coal Combustion Residuals Permit Program
Final rule · Environmental Protection Agency · 40 CFR part 257
- Oct. 19, 2026
- Oct. 15, 2026Significant New Use Rules on Certain Chemical Substances (26-1)
Final rule · Environmental Protection Agency · 40 CFR part 721
- Oct. 14, 2026
- Oct. 13, 2026Colorado Underground Injection Control (UIC) Program; Class VI Primacy
Final rule · Environmental Protection Agency · 40 CFR part 147
- Oct. 13, 2026
- Oct. 9, 2026
- Oct. 8, 2026Air Plan Approval; Missouri; Construction Permit Exemptions
Final rule · Environmental Protection Agency · 40 CFR part 52
- Oct. 8, 2026
- Oct. 8, 2026Air Plan Approval; GA; Removal of Nonattainment Area New Source Review
Final rule · Environmental Protection Agency · 40 CFR part 52
- Oct. 8, 2026
- Oct. 8, 2026Air Plan Approval; Oklahoma; Interstate Transport Requirements for the 2010 SO2 NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52
- Oct. 8, 2026
- Oct. 2, 2026Phosphatidylcholine in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Oct. 1, 2026Air Plan Approval; Missouri; Control of NOX Emissions From Large Stationary Internal Combustion Engines
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 1, 2026Attainment Date Extension for the South Coast, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 1, 2026Administration of Cross-State Air Pollution Rule Trading Program Assurance Provisions for 2025 Control Period
Final rule · Environmental Protection Agency · 40 CFR part 97 · Opens the Federal Register
- Sept. 29, 2026Sodium Salt of Acifluorfen; Pesticide Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Sept. 29, 2026Rescission of Title V Emergency Affirmative Defense Rule; Corrections
Final rule · Environmental Protection Agency · 40 CFR parts 70, 71 · Opens the Federal Register
- Sept. 28, 2026Marine Protection: Modification To Expand Ocean Dredged Material Disposal Sites Offshore of Corpus Christi, Texas
Final rule · Environmental Protection Agency · 40 CFR part 228 · Opens the Federal Register
- Sept. 25, 2026Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 25, 2026Clarifying the Scope of “Applicable Requirements” Under State Operating Permit Programs and the Federal Operating Permit Program
Final rule · Environmental Protection Agency · 40 CFR parts 70, 71 · Opens the Federal Register
- Sept. 24, 2026Air Plan Approval; Alabama; Transportation Conformity
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 17, 2026Partial Repeal of the Carbon Pollution Standards for Fossil Fuel-Fired Electric Generating Units
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- Sept. 15, 2026Bacillus amyloliquefaciens strain AT-332; Exemption From the Requirement of a Pesticide Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Sept. 14, 2026Approval and Promulgation of Implementation Plans; California; San Joaquin Valley, Revisions to Motor Vehicle Emissions Budgets for Ozone
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 9, 2026Air Plan Approval; New York; Interstate Transport Requirements for the 2010 SO2 NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 9, 2026Air Plan Approvals; Indiana; Prong 4 (Visibility) for the 2015 Ozone National Ambient Air Quality Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 4, 2026Renewable Fuel Standard (RFS) Program: Extension of 2025 Compliance Reporting Deadline
Final rule · Environmental Protection Agency · 40 CFR part 80 · Opens the Federal Register
- Aug. 28, 2026Alpha-d-Glucopyranoside, Beta-d-Fructofuranosyl, Mixed Palmitates and Stearates in Pesticide Formulations; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Aug. 27, 2026Florida: Final Authorization of State Hazardous Waste Management Program Revisions
Final rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- Aug. 27, 2026Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 27, 2026Air Plan Approval; FL; Emissions Reporting Requirements and Permitting Forms
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 27, 2026Air Plan Approval; Arkansas; Regional Haze State Implementation Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 26, 2026Significant New Use Rules on Certain Chemical Substances (24-5.5e)
Final rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- Aug. 21, 2026Carboxin; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Aug. 20, 2026Cypermethrin; Pesticide Tolerance(s)
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Aug. 20, 2026Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 20, 2026Deletion From the National Priorities List
Final rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- Aug. 20, 2026Air Plan Approval; Arizona; Attainment Plan for the Hayden SO2 Nonattainment Area for the 1971 and 2010 Sulfur Dioxide National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 20, 2026Air Plan Approval; SC; Department Name Change
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 17, 2026Calcium Carbonate; Exemption From the Requirement of a Pesticide Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Aug. 14, 2026Approval of Source-Specific Air Quality Implementation Plan; New York; Big Six Towers Inc.
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 13, 2026Determination of Attainment by the Attainment Date and Clean Data Determination for the 2012 Annual Fine Particulate Standard; Plumas County, California
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 13, 2026Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 13, 2026Air Plan Approval; Illinois; Clean Data Determination for the Illinois Portion of the St. Louis Area for the 2015 Ozone Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 13, 2026Air Plan Approval; Missouri; Clean Data Determination for the 2015 8-Hour Ozone Standard for the Missouri Portion of the St. Louis Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 11, 2026Determination To Defer Sanctions; Arizona; Maricopa County Air Quality Department; Gasoline Loading
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 7, 2026Bacillus thuringiensis eCry1Gb.1Ig Protein; Exemption From the Requirement of a Pesticide Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 174 · Opens the Federal Register
- Aug. 7, 20262-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
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Aug. 6, 2026Alaska: Final Authorization of State Hazardous Waste Program
Final rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- Aug. 6, 2026Air Plan Approval; Connecticut; Plan for Inclusion of a Consent Order No. 8383-Algonquin Gas Transmission, LLC and Negative Declaration for Rubber Tire Manufacturing Sources
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 4, 2026Isofetamid; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Aug. 3, 2026Permethrin; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- July 31, 2026Air Plan Approval; Rhode Island; Update to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 30, 2026Operating Permit Program Approval; New Hampshire; Revised Definitions
Final rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- July 30, 2026Air Plan Approval; California; San Joaquin Valley Air Pollution Control District
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 28, 2026Perchloroethylene (PCE) and Carbon Tetrachloride (CTC); Regulation under the Toxic Substances Control Act (TSCA); Compliance Date Extensions
Final rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- July 24, 2026Significant New Use Rule on a Certain Chemical Substance; Multi-Walled Carbon Nanotubes
Final rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- July 23, 2026Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 23, 2026Air Plan Approval; Maine; Chapter 140: Part 70 Air Emission License Regulation
Final rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- July 16, 2026Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Source Review; Stationary Source Permits
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2026Air Plan Approval and Air Quality Designation; Ohio; Attainment Plan and Redesignation of the Canton Area to Attainment of the 2008 Lead Standard
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- July 16, 2026Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations
Final rule · Environmental Protection Agency · 40 CFR parts 52, 70 · Opens the Federal Register
- July 16, 2026Air 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)
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2026Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants; Nebraska; Commercial and Industrial Solid Waste Incineration Units
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- July 16, 2026New Source Performance Standards Review for Stationary Combustion Turbines and Stationary Gas Turbines; Correction
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- July 14, 2026Bacteriophage Active Against Xanthomonas campestris pv. vesicatoria_EcoPhage and Bacteriophage Active Against Pseudomonas syringae pv. tomato_EcoPhage; Exemptions from the Requirement of a Pesticide Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- July 9, 2026Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- July 6, 2026National Emission Standards for Hazardous Air Pollutants: Plywood and Composite Wood Products
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- July 2, 2026Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 2, 2026Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP Provisions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 30, 2026Bifenthrin; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 30, 2026Diflufenican; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 30, 2026Chlormequat Chloride; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 30, 2026Epyrifenacil; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 30, 2026Fluoxapiprolin; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 29, 2026Air Plan Approval; Ohio; Redesignation of the Cleveland, OH Area to Attainment of the 2015 Ozone Standard
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- June 26, 2026Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Louisiana; Control of Emissions From Existing Other Solid Waste Incineration Units
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- June 26, 2026Approval 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
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- June 26, 2026Air Plan Approval; District of Columbia; Creation of Synthetic Minor Permit Program
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 26, 2026Cinnamaldehyde in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 26, 2026Air Plan Approval; Ohio; Source-Specific Non-CTG RACT
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 26, 2026Air Plan Approval; Ohio; Source-Specific Non-CTG RACT and SIP Strengthening for Ohio
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 26, 2026U.S. Ecology Nevada, Inc. High Mercury Subcategory Wastes Land Disposal Restrictions Variance
Final rule · Environmental Protection Agency · 40 CFR part 268 · Opens the Federal Register
- June 23, 2026No-Migration Variance From Land Disposal Restrictions for Clean Harbors Grassy Mountain, Utah
Final rule · Environmental Protection Agency · 40 CFR part 268 · Opens the Federal Register
- June 22, 2026Air Plan Approval; OR; Update to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 22, 2026Congressional Review Act Revocation of 2024 Amendments to the National Emission Standards for Hazardous Air Pollutants: Rubber Tire Manufacturing
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- June 22, 2026EPCRA Hazardous Chemical Inventory Reporting Requirements: Conformity With the 2024 OSHA Hazard Communication Standard
Final rule · Environmental Protection Agency · 40 CFR part 370 · Opens the Federal Register
- June 18, 2026Resin Acids, Esters With Glycerol in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 15, 2026Pydiflumetofen; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 15, 2026Sodium Nitrate in Pesticide Formulations; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 12, 2026Partial 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
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 11, 2026Air Plan Approval; Connecticut; Ozone Ambient Air Quality Standard and Adhesive and Sealants Regulation Revisions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 11, 2026Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 11, 2026Air Plan Approval; New York; New York Metropolitan Area Second Ten-Year Limited Maintenance Plan for the 2006 24-Hour PM2.5 Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 8, 2026Air Plan Approval; Minnesota; Revision to Taconite Federal Implementation Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 4, 2026Conditional Approval; Contingency Measure State Implementation Plan for the 2008 Ozone Standards; San Joaquin Valley, California
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 4, 2026Revisions 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
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- June 4, 2026Clean Air Act Title V Operating Permit Program Revision; District of Columbia
Final rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- June 3, 2026National Emission Standards for Hazardous Air Pollutants From Hazardous Waste Combustors: Residual Risk and Technology Review
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- June 1, 2026Rescission of Title V Emergency Affirmative Defense Rule
Final rule · Environmental Protection Agency · 40 CFR parts 70, 71 · Opens the Federal Register
- May 29, 2026Bacillus Thuringiensis Cry1B.34.1, Bacillus Thuringiensis Cry1B.61.1 and Adiantum Trapeziforme var. Braziliense IPD083Cb Proteins; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 174 · Opens the Federal Register
- May 29, 2026Propylene Oxide; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- May 29, 2026Significant New Use Rules on Certain Chemical Substances (25-2.5e)
Final rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- May 29, 2026Air Plan Approval; ID; Update to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 29, 2026Approval and Promulgation of State Air Quality Plans (Negative Declarations) for Designated Facilities and Pollutants; District of Columbia
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- May 29, 2026South Carolina; Approval of State Plan for Control of Emissions From Commercial and Industrial Solid Waste Incineration Units
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- May 29, 2026Air Plan Approval; Virginia; Repeal of Existing Stationary Source Regulations
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 29, 2026Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regional Haze State Implementation Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 29, 2026Air Plan Approval; Maryland; Clean Data Determination for the Baltimore, MD Nonattainment Area for the 2015 Ozone National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 29, 2026Air 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
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 29, 2026Designation of Areas for Air Quality Planning Purposes; Michigan; Technical Amendment
Final rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- May 29, 2026Air Plan Approval; New York; Athens Generating Plant
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 29, 2026Approval of Source-Specific Air Quality Implementation Plan; New York; Calpine JFK Energy Center
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 29, 2026Air 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
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 29, 2026Air Plan Approval; Indiana; Keystone VOC RACT Alternative Control
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 26, 2026Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Promulgated Under the Technology Transitions Provisions of the American Innovation and Manufacturing Act of 2020
Final rule · Environmental Protection Agency · 40 CFR part 84 · Opens the Federal Register
- May 22, 2026Reporting Deadline Extension for the Health and Safety Data Reporting Rule Under Toxic Substance Control Act (TSCA) Section 8(d)
Final rule · Environmental Protection Agency · 40 CFR part 716 · Opens the Federal Register
- May 22, 2026Significant New Use Rules on Certain Chemical Substances (25-1.5e)
Final rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- May 22, 2026Aluminum in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- May 22, 2026Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Gila County Reasonably Available Control Technology
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 14, 2026Air Plan Approval; Indiana; Indiana NOX Emissions Monitoring
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 14, 2026Air Plan Approval; Illinois; Moderate Attainment Plan Elements for the Chicago and Metro East Areas for the 2015 Ozone Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 14, 2026Air Plan Approval; Ohio; Clean Data Determination for the Cleveland, Ohio Area for the 2015 Ozone Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 14, 2026Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Washington; Northwest Clean Air Agency
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- May 14, 2026Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 14, 2026Air Plan Approval; Minnesota; Metropolitan Council Wastewater Treatment Plant Title I PM10 SIP Revisions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 14, 2026Air Plan Approval; Montana; Revisions to Western Sugar Stipulation
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 13, 2026Oxirane, 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
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- May 7, 2026Approval 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
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- May 5, 2026Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
Final rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- April 29, 2026Approval of Missouri's Request for Partial Program Delegation of Clean Air Act 112(r) Prevention of Accidental Release Program
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- April 23, 2026Air Plan Approval; Missouri; Construction Permits Required
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 23, 2026Air Plan Approval; Virginia; Revision to the Regulatory Definition of Volatile Organic Compound
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 23, 2026Finding 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
Final rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- April 22, 2026Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides (Hydrogen Cyanide, et al.)
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- April 17, 2026Air Plan Approval; Virginia; Amendment to the State Operating Permit for GP Big Island, LLC
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 17, 2026Methoxyfenozide; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- April 16, 2026Air Plan Approval; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 16, 2026Air Plan Approval; Pennsylvania; Redesignation Request for the Allegheny County Area for the 2012 Annual Fine Particulate Matter Standard
Final rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- April 16, 2026Air Plan Approval; Arizona; Interstate Transport Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 13, 2026Modification to the Start of the Submission Period for Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Reporting and Recordkeeping Under TSCA 8(a)(7)
Final rule · Environmental Protection Agency · 40 CFR part 705 · Opens the Federal Register
- April 10, 2026Polyethylhexyl Glycidyl Ether Polyethylene Oxide Copolymer in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- April 10, 2026Hexanedioic 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
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- April 9, 2026Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- April 9, 2026Air Plan Approval; Missouri; Revisions to Existing Rule 10 CSR 10-5.570; Control of Sulfur Emissions From Stationary Boilers
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 9, 2026Air 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
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 9, 2026Air 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
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 7, 2026Citrus Tristeza Virus (CTV) Strain T36 Expressing Spinach Defensin Proteins SoD2, SoD2-1, and SoD2*; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- April 2, 2026Air Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 2, 2026Air Quality Plan; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements; Correction
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 2, 2026Air Plan Approval; Oregon; 2024 Vehicle Inspection Program Updates
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 2, 2026Ohio: Authorization of State Hazardous Waste Management Program Revisions
Final rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- April 2, 2026Air Plan Approval; Michigan; Detroit 2010 Sulfur Dioxide Redesignation and Maintenance Plan
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- April 2, 2026Air Plan Approval; Ohio; Muskingum River 2010 Sulfur Dioxide Redesignation and Maintenance Plan
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- April 2, 2026Air Plan Approval; Ohio; Ohio Permit Rules Revisions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 2, 2026Lead-Based Paint Poisoning Prevention in Certain Residential Structures
Final rule · Environmental Protection Agency · 40 CFR part 745 · Opens the Federal Register
- April 1, 2026Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and Other Changes
Final rule · Environmental Protection Agency · 40 CFR parts 63, 80, 1090 · Opens the Federal Register
- April 1, 2026National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- March 26, 2026Florida: Final Authorization of State Hazardous Waste Management Program Revisions
Final rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- March 25, 2026Dimethylpolysiloxane in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- March 24, 2026Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Washington; Southwest Clean Air Agency
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- March 23, 2026Air Plan Approval; New Hampshire; Single Source VOC RACT Order for Hutchinson Sealing Systems
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 23, 2026Air Plan Approval; Ohio; Volatile Organic Compounds RFD Beaufort
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 23, 2026Air Plan Revisions; California; Mojave Desert Air Quality Management District; New Source Review; Stationary Source Permits
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 23, 2026Approval of Clean Air Plans; San Joaquin Valley, California; Contingency Measures for 1997 Ozone Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 23, 2026Air Plan Approval; Texas; Reasonably Available Control Technology in the Houston-Galveston-Brazoria Ozone Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 23, 2026Determination of Attainment by the Attainment Date But for International Emissions for the 2015 Ozone National Ambient Air Quality Standards; Phoenix-Mesa Nonattainment Area, Arizona
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 23, 2026Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth Ozone Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 19, 2026Commercial and Industrial Solid Waste Incineration Units: Temporary-Use Incinerators and Air Curtain Incinerators Used in Disaster Recovery; Rescission of Interim Final Rule
Final rule · Environmental Protection Agency · 40 CFR parts 60, 62 · Opens the Federal Register
- March 19, 2026Announcement of Final Regulatory Determinations for Contaminants on the Fifth Drinking Water Contaminant Candidate List
Final rule · Environmental Protection Agency · 40 CFR part 141 · Opens the Federal Register
- March 18, 2026National Emission Standards for Hazardous Air Pollutants: Polyether Polyols Production Industry Review
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- March 13, 2026National Priorities List
Final rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- March 10, 2026Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and Five-Year Review
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- March 10, 2026Air 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
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 4, 2026Deletion From the National Priorities List
Final rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- March 3, 2026Air Plan Approval; AK; Regional Haze State Implementation Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 2, 2026Removal of the Federal Reformulated Gasoline Program From the Kentucky Portion of the Louisville Area
Final rule · Environmental Protection Agency · 40 CFR part 1090 · Opens the Federal Register
- Feb. 27, 2026Pyridate; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 27, 2026Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Maleic Hydrazide, et al.
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 27, 2026Implementing Statutory Addition of Certain Per- and Polyfluoroalkyl Substances (PFAS) to the Toxics Release Inventory Beginning With Reporting Year 2026
Final rule · Environmental Protection Agency · 40 CFR part 372 · Opens the Federal Register
- Feb. 27, 2026Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for 2025
Final rule · Environmental Protection Agency · 40 CFR part 98 · Opens the Federal Register
- Feb. 26, 2026Wyoming: Approval of State Coal Combustion Residuals Permit Program
Final rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- Feb. 26, 2026No-Migration Variance From Land Disposal Restrictions for Clean Harbors Lone Mountain, Oklahoma
Final rule · Environmental Protection Agency · 40 CFR part 268 · Opens the Federal Register
- Feb. 26, 2026Air Plan Approval; Michigan; Moderate Attainment Plan Elements for the Allegan County, Berrien County, and Muskegon County Areas for the 2015 Ozone Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 26, 2026Air Plan Approval; Connecticut; State Implementation Plan Revisions Required as a Result of a Definition Change Due to the Ozone Reclassification
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 26, 2026Air Plan Approval; Missouri; Reporting Emission Data, Emission Fees, and Process Information
Final rule · Environmental Protection Agency · 40 CFR parts 52, 70 · Opens the Federal Register
- Feb. 24, 2026National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Feb. 20, 2026Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Terbacil, et al.
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 20, 2026Imidacloprid; Pesticide Tolerance(s)
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 20, 2026Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Diphenylamine, et al.
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 20, 2026Pydiflumetofen; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 20, 2026Inpyrfluxam; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 18, 2026Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
Final rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- Feb. 18, 2026Rescission of the Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under the Clean Air Act
Final rule · Environmental Protection Agency · 40 CFR parts 85, 86, 600 and 3 more · Opens the Federal Register
- Feb. 13, 2026Hexythiazox; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 13, 2026Sulfonic Acids, C14-16-Alkane Hydroxy and C14-16-Alkene, Sodium Salts in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 13, 2026Rice Bran Wax in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 13, 2026Afidopyropen; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 12, 2026Air Plan Approval; Ohio; Second Maintenance Plan for 2008 Ozone NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 10, 2026Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; CCR Management Unit Deadline Extension Rule
Final rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- Feb. 9, 2026Air Plan Approval; Connecticut; Revised Format for Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 9, 2026Air Plan Approval; AK; Updates to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 6, 2026Approval and Promulgation of Air Quality Implementation Plans; Nevada; Regional Haze State Implementation Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 6, 2026Air Plan Revisions; California; Heavy-Duty Vehicle Inspection and Maintenance Program
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 30, 2026PDHP 68949; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Jan. 30, 2026Chlorate; Exemption From the Requirement of a Pesticide Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Jan. 29, 2026Air Plan Approval; OR; Lane County Permitting Rule Revisions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 29, 2026Air Plan Approval; Pennsylvania; Motor Vehicle Inspection and Maintenance Program Certification for Moderate Nonattainment Under the 2015 Ozone National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 29, 2026Determination of Attainment by the Attainment Date and Clean Data Determination; California, San Joaquin Valley 1997 Annual PM2.5 Fine Particulate Matter Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 29, 2026Air 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
Final rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- Jan. 26, 2026Air Plan Approval; Indiana; Regional Haze Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 26, 2026Air Plan Approval; Oklahoma; Revisions to Air Pollution Control Rules
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 26, 2026Air Plan Approval; Arkansas; Codification of the State Implementation Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 26, 2026Air Plan Disapproval; Colorado; Regional Haze Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 20, 2026Air Plan Approval; Ohio; 2015 Ozone Moderate Reasonably Available Control Technology
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 15, 2026New Source Performance Standards Review for Stationary Combustion Turbines and Stationary Gas Turbines
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- Jan. 14, 2026Permethrin; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Jan. 14, 2026Pyriofenone; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Jan. 9, 2026Air Plan Approval; Indiana; Huntington County 2010 Sulfur Dioxide Redesignation and Maintenance Plan
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Jan. 9, 2026Air Plan Approval; New Hampshire; Updates to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 9, 2026Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Ohio; Delegation of Authority
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Jan. 9, 2026Air Plan Approval; New York; Ortho Clinical Diagnostics
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 8, 2026Air Plan Approval; California; Mojave Desert Air Quality Management District; Definition of Terms
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 8, 2026Air Plan Approval; Kentucky; Emissions Inventory and Nonattainment New Source Review for the Henderson-Webster Sulfur Dioxide Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 8, 2026Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 6, 2026Extension of the State Implementation Plan Due Date for the Regional Haze Third Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 51 · Opens the Federal Register
- Jan. 6, 2026Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 6, 2026Air Plan Revision; California; Placer County Air Pollution Control District; New Source Review
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 6, 2026Utah; Northern Wasatch Front; 2015 8-Hour Ozone Nonattainment Area Boundary Expansion and Applicability of Certain Clean Air Act Requirements
Final rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- Jan. 2, 2026Air Plan Approval; Colorado; Revisions to Colorado Procedural Rules and Common Provisions Regulation
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 2, 2026National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma
Final rule · Environmental Protection Agency · 40 CFR parts 61, 63 · Opens the Federal Register
- Jan. 2, 2026Congressional Review Act Revocation of 2024 Review of Final Rule Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Jan. 2, 2026Air Plan Approval; Michigan and Minnesota; Revision to Taconite Federal Implementation Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 31, 2025Regulation of Fuels, Fuel Additives, and Regulated Blendstocks
Final rule · Environmental Protection Agency · 40 CFR part 1090 · Opens the Federal Register
- Dec. 31, 2025Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Deadline Extensions
Final rule · Environmental Protection Agency · 40 CFR part 423 · Opens the Federal Register
- Dec. 19, 2025Flupyradifurone; Pesticide Tolerance for Emergency Exemption
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Dec. 19, 2025Thiamethoxam; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Dec. 18, 2025Air Plan Approval: Arizona: Infrastructure Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standard
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Dec. 18, 2025New Source Performance Standards; Delegation of Authority to Oklahoma
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- Dec. 18, 2025New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Louisiana
Final rule · Environmental Protection Agency · 40 CFR parts 60, 61, 63 · Opens the Federal Register
- Dec. 16, 2025SpCas9 Protein; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 174 · Opens the Federal Register
- Dec. 11, 2025
- Dec. 11, 2025Air Plan Approval; Ohio; Carmeuse Lime, Inc. SO2
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 11, 2025Air Plan Approval; Tennessee; Second Period Regional Haze Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 11, 2025Approval of Air Quality Implementation Plans; Arizona; Arizona Department of Environmental Quality; Stationary Source Permits; West Pinal County; PM10
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 11, 2025Air Plan Approval; California; South Coast Air Quality Management District
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 8, 2025Azoxystrobin; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Dec. 5, 2025
- Dec. 5, 2025National 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
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Dec. 3, 2025National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Dec. 3, 2025Oil 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
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- Nov. 28, 2025Air Plan Approval; Montana; Regional Haze Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 26, 2025Propyzamide; Extension of Tolerance for Emergency Exemption
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 26, 2025Delegation of Authority to North Carolina and Forsyth County of the Federal Plan for Existing Landfills
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Nov. 26, 2025Air Plan Approval; Ohio; Emergency Episodes and Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Approval of the Clean Air Act, Section 112(l), Authority for Hazardous Air Pollutants; State of Connecticut Department of Energy and Environmental Protection; Approval of the Clean Air Act Section 502, State Operating Permit Programs, State of Connecticut Department of Energy and Environmental Protection
Final rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- Nov. 20, 2025Glufosinate; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; California; Eastern Kern Air Pollution Control District; Stationary Combustion Turbines
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; South Carolina; Charlotte-Gastonia-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; Rhode Island; Decommissioning of Stage II Vapor Recovery Systems
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Isocycloseram; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; Minnesota; Exempt Source SIP Revision
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 19, 2025Approval and Promulgation of Implementation Plans; State of Utah; Salt Lake City and Provo, Utah PM2.5 Redesignations to Attainment and Utah State Implementation Plan Revisions
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Nov. 19, 2025Air Plan Approval; Arizona; Maricopa County Air Quality Department; Petroleum Solvent Dry Cleaning
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; Arizona; Yuma 2015 8-Hour Ozone Nonattainment Area; Redesignation Request and Maintenance Plan
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; Pennsylvania; Redesignation of the Beaver 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
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; AK, Fairbanks North Star Borough; 2006 24-Hour PM2.5 Serious Area and 189(d) Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; Vermont; Regional Haze State Implementation Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; Connecticut; 2014 and 2017 Periodic Emissions Inventory for 2008 8-Hour Ozone NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; Rhode Island; Amendments to Motor Vehicle Inspection and Maintenance Program
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; Michigan; Revisions to Part 1 and 2 Rules
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Fluopyram; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; New Jersey; Northern New Jersey and Southern New Jersey Counties' Second 10-Year Limited Maintenance Plan for the 2006 24-Hour PM2.5 Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; IA, Muscatine; 2010 1-Hour SO2 Maintenance Plan and Redesignation
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; State of Kansas; Attainment Redesignation for 2008 Lead NAAQS and Associated Maintenance Plan
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; Montana: Infrastructure Requirements for the 2015 Ozone National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Air Plan Approval; Colorado; Inspection and Maintenance Program Revision
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Arkansas: Incorporation by Reference of Approved State Hazardous Waste Management Program
Final rule · Environmental Protection Agency · 40 CFR part 272 · Opens the Federal Register
- Nov. 17, 2025Chlorantraniliprole; Pesticide Tolerance for Emergency Exemption
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 17, 2025Various Fragrance Components in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 17, 2025Castor Oil, Polymer With 2-Ethylhexanol, Maleic Anhydride and Soybean Oil, Sodium Salt in Pesticide Formulations: Tolerance Exemption
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 17, 2025Oxirane, Methyl-, Polymer With Oxirane, Monobutyl Ether and Oxirane, 2-Methyl, Polymer With Oxirane, Monomethyl Ether in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 17, 2025Fluazinam; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 17, 2025National Oil and Hazardous Substances Pollution Contingency Plan; Extension of Transition Period for New Product Schedule Listing
Final rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- Nov. 17, 2025Technical Amendments to the EPCRA Hazardous Chemical Inventory Reporting Requirements To Conform to the 2024 OSHA Hazard Communication Standard
Final rule · Environmental Protection Agency · 40 CFR part 370 · Opens the Federal Register
- Nov. 17, 2025North Dakota: Approval of State Coal Combustion Residuals Permit Program
Final rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- Nov. 14, 2025Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
Final rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- Nov. 14, 2025Texas Underground Injection Control (UIC) Program; Class VI Primacy Application
Final rule · Environmental Protection Agency · 40 CFR part 147 · Opens the Federal Register
- Nov. 13, 2025Methylene Chloride; Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extension
Final rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- Nov. 10, 2025Air Plan Approval; Utah; Interstate Transport of Air Pollution for the 2008 8-Hour Ozone National Ambient Air Quality Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 5, 2025Cyclobutrifluram; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Nov. 4, 2025Significant New Use Rules on Certain Chemical Substances (24-4.5e)
Final rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- Oct. 31, 2025Priestia Megaterium Strain SYM36613; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Oct. 30, 2025ASFBIOF01-02 Polypeptide; Exemption From the Requirement of a Pesticide Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Oct. 30, 2025Determination of Attainment by the Attainment Date; California; Mariposa County; 2015 8-Hour Ozone National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 2, 2025Air Plan Approval; North Carolina; Revisions to Regulations for Sulfur Dioxide Emissions From Combustion Sources
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 2, 2025Air Plan Approval; GA; Updates to the Cross-State Air Pollution Rule
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 2, 2025Air Plan Approval; Alabama; Standards for Granting Permits and Major New Source Review Permit Rules
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 2, 2025Air Plan Approval; GA; Removal of Emissions Statements Requirement and Updates To Permit by Rule
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 2, 2025Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Revisions to Regulation for Control of Ozone Season Nitrogen Oxide Emissions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 2, 2025Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Initial Notification Date Extension
Final rule · Environmental Protection Agency · 40 CFR part 423 · Opens the Federal Register
- Oct. 1, 2025Amicarbazone; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Sept. 29, 2025Water Quality Standards To Protect Aquatic Life in the Delaware River
Final rule · Environmental Protection Agency · 40 CFR part 131 · Opens the Federal Register
- Sept. 26, 2025Air Plan Approval; New York; Update to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 25, 2025Air Plan Approval; Missouri; Definitions and Common Reference Tables
Final rule · Environmental Protection Agency · 40 CFR parts 52, 62, 70 · Opens the Federal Register
- Sept. 25, 2025Air Plan Approval; Washington; Regional Haze State Implementation Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 25, 2025Air Plan Approval; West Virginia; 2024 Amendments to West Virginia's Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 25, 2025Air Plan Approval; Delaware; Motor Vehicle Inspection and Maintenance Program Certification
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 25, 2025Finding of Failure To Attain the 1997 8-Hour Ozone Standards; California; San Joaquin Valley
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 25, 2025Air Plan Approval; California; San Joaquin Valley 1-Hour Ozone Area; Maintenance Plan and Redesignation Request
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Sept. 22, 2025Environmental Protection Agency Acquisition Regulation (EPAAR); Special Contracting Methods; Options; Contracts
Final rule · Environmental Protection Agency · 48 CFR part 1517 · Opens the Federal Register
- Sept. 18, 2025Hawaii: Amendment to Approval of State Underground Storage Tank Program Revisions, Codification, and Incorporation by Reference
Final rule · Environmental Protection Agency · 40 CFR part 282 · Opens the Federal Register
- Sept. 18, 2025Air Plan Approval; Guam; Guam Environmental Protection Agency; New Source Review
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 18, 2025Air Plan Approval; Guam; Clean Data Determination for the Piti-Cabras Nonattainment Area for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 17, 2025Trichloroethylene; Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extension
Final rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- Sept. 15, 2025Arizona Underground Injection Control (UIC) Program; Class I-VI Primacy
Final rule · Environmental Protection Agency · 40 CFR part 147 · Opens the Federal Register
- Sept. 11, 2025Air Plan Approval; New Jersey; Memorandum of Agreement To Address NOX SIP Call Requirements
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Air Plan Approval; Wyoming; R-35 Wyoming Air Quality Standards and Regulations Rule Package
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Maryland: Final Approval of State Underground Storage Tank Program Revisions, Codification, and Incorporation by Reference
Final rule · Environmental Protection Agency · 40 CFR part 282 · Opens the Federal Register
- Sept. 11, 2025Minnesota: Final Approval of State Underground Storage Tank Program Revisions, Codification, and Incorporation by Reference
Final rule · Environmental Protection Agency · 40 CFR part 282 · Opens the Federal Register
- Sept. 11, 2025Authorization of State Hazardous Waste Management Program Revisions: California
Final rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; Missouri; Control of Sulfur Dioxide Emissions and Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants
Final rule · Environmental Protection Agency · 40 CFR parts 52, 62 · Opens the Federal Register
- Sept. 5, 2025Withdrawals of Findings of Failure To Submit State Implementation Plan and Finding of Failure To Attain for the Rusk and Panola Counties, Texas 2010 Sulfur Dioxide Primary National Ambient Air Quality Standard Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 5, 2025Revisions to the Clean Air Act Operating Permit Program; California; San Diego County Air Pollution Control District
Final rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- Sept. 5, 2025Approval of Air Quality Implementation Plans; California; Regional Haze State Implementation Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 5, 2025Massachusetts: Final Authorization of State Hazardous Waste Management Program Revisions
Final rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; ID; Regional Haze Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 5, 2025Extension of the Attainment Date of the Coachella Valley Extreme Nonattainment Area Under the 1997 Ozone National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; California; State Implementation Plan Revision for Chico, Modesto and Stockton Carbon Monoxide Maintenance Areas
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; West Virginia; Revision to the State Operating Permits Program Under Title V of the Clean Air Act To Revise 45 Code of State Rules 33; Acid Rain Provisions and Permits
Final rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; Michigan; Second Period Regional Haze Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 3, 2025Clean Water Act Effluent Limitations Guidelines and Standards for the Meat and Poultry Products Point Source Category
Final rule · Environmental Protection Agency · 40 CFR part 432 · Opens the Federal Register
- Sept. 2, 2025National Emission Standards for Hazardous Air Pollutants for the Polyether Polyols Production Industry: Removal of Affirmative Defense
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Aug. 28, 2025Air Plan Approval; California; Mojave Desert Air Quality Management District; Internal Combustion Engines
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 28, 2025Air Plan Approval; Texas; Interstate Transport Requirements for the 2010 SO2 NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 28, 2025Air Plan Approval; South Dakota; Regional Haze Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 27, 2025State, Tribal, and EPA-Administered Underground Injection Control Programs
Final rule · Environmental Protection Agency · 40 CFR part 147 · Opens the Federal Register
- Aug. 26, 2025Phasedown of Hydrofluorocarbons: Review and Renewal of Eligibility for Application-Specific Allowances
Final rule · Environmental Protection Agency · 40 CFR part 84 · Opens the Federal Register
- Aug. 26, 2025Commercial and Industrial Solid Waste Incineration Units: Temporary-Use Incinerators and Air Curtain Incinerators Used in Disaster Recovery
Final rule · Environmental Protection Agency · 40 CFR parts 60, 62 · Opens the Federal Register
- Aug. 25, 2025Florida; Approval of State Plan for Control of Emissions From Commercial and Industrial Solid Waste Incineration Units
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Aug. 21, 2025Air Plan Approval; California; Revised Format for Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 21, 2025Determination of Attainment by the Attainment Date; 2008 8-Hour Ozone Standards; California; Sacramento Metro Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 21, 2025Adequacy Status of the Klamath Falls, Oregon Submitted 2006 24-Hour PM2.5 NAAQS Redesignation Request and Maintenance Plan Budgets for Transportation Conformity Purposes
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 21, 2025Air Plan Approval; WA; Update to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 20, 2025Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
Final rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- Aug. 19, 2025Approval of Replacement Waste Panels 11 and 12 at the Waste Isolation Pilot Plant
Final rule · Environmental Protection Agency · 40 CFR part 194 · Opens the Federal Register
- Aug. 15, 2025Mandipropamid; Pesticide Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Aug. 15, 2025Extension of Deadlines: Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review Interim Final Rule; National Emission Standards for Hazardous Air Pollutants for Integrated Iron and Steel Manufacturing Facilities; National Emission Standards for Hazardous Air Pollutants for Coke Ovens: Pushing, Quenching, and Battery Stacks, and Coke Oven Batteries
Final rule · Environmental Protection Agency · 40 CFR parts 60, 63 · Opens the Federal Register
- Aug. 14, 2025Air Plan Approval; Missouri; Removal of Obsolete Rules on Control of NOX Emissions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 14, 2025Air Plan Approval; Oregon; Lane Regional Air Protection Agency, Outdoor Burning
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 14, 2025Air Plan Approval; IA; Alter Metal Recycling Permit Modification
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 14, 2025Approval and Promulgation of State Implementation Plans; New York; Emission Statement Certification of the 2008 and 2015 Ozone National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 14, 2025Finding of Failure To Attain; Air Plan Approval; Indiana; Huntington County Sulfur Dioxide Attainment Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 7, 2025Air Plan Approval; OR; Update to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 7, 2025Air Plan Approval; Wyoming; Revisions to Regional Haze State Implementation Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 6, 2025Bacillus thuringiensis Cry1A.2 and Cry1B.2 Proteins; Exemptions From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 174 · Opens the Federal Register
- Aug. 6, 2025Ethyl Formate; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Aug. 5, 2025Air Plan Approval; IA; Regional Haze State Implementation Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 31, 2025Finding of Failure To Attain and Reclassification of Area in New York as Serious for the 2015 Ozone National Ambient Air Quality Standards-Shinnecock Indian Nation
Final rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- July 31, 2025Extension of Deadlines in Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review Final Rule
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- July 29, 2025Significant New Use Rules on Certain Chemical Substances (24-1.5e)
Final rule · Environmental Protection Agency · 40 CFR parts 721, 725 · Opens the Federal Register
- July 29, 2025Pyroxasulfone; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- July 29, 2025Designation of Areas for Air Quality Planning Purposes
Final rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- July 24, 2025Air Plan Approval; Connecticut; Plan for Inclusion of a Consent Order and Removal of State Orders
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 24, 2025Approval and Promulgation of Air Quality Implementation Plans; Maryland; Nitrogen Oxides Ozone Season Emissions Caps for Non-Trading Large Nitrogen Oxides Units; Amendments
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 24, 2025Air Plan Approval; Pennsylvania; Redesignation Request and Associated Maintenance Plan for the Liberty-Clairton Area for the 1997 Annual and 2006 24-Hour Fine Particulate Matter Standard and Maintenance Plan for the Allegheny County Area for the 2012 Annual Fine Particulate Matter Standard
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- July 24, 2025Interim Final Determination To Stay or Defer Sanctions; California; Mojave Desert Air Quality Management District
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 23, 2025Afidopyropen; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- July 22, 2025Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; CCR Management Unit Deadline Extension Rule
Final rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- July 17, 2025Cypermethrin; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- July 17, 2025Significant New Use Rules on Certain Chemical Substances (24-3.5e)
Final rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- July 16, 2025Acetamiprid; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- July 16, 2025Triclopyr; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- July 16, 2025Air Plan Approval; Guam; Base Year Emissions Inventory for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard for the Piti-Cabras Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Plan Approval; Connecticut; 2017 Base Year Emissions Inventory for the 2015 8-Hour Ozone National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Plan Approval; New Jersey; Update to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Plan Approval; Ohio; Second Maintenance Plan for the Ohio Portion of the Campbell-Clermont, KY-OH SO2 Maintenance Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 10, 2025Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 10, 2025Air Plan Approval; Louisiana; Nonattainment Plan for the Evangeline Parish 2010 Sulfur Dioxide Primary National Ambient Air Quality Standard Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 9, 2025Reconsideration of the Dust-Lead Hazard Standards and Dust-Lead Post-Abatement Clearance Levels; Correction
Final rule · Environmental Protection Agency · 40 CFR part 745 · Opens the Federal Register
- July 8, 2025Air Plan Approval; Ohio; Regional Haze Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 8, 2025National Emission Standards for Hazardous Air Pollutants for Coke Ovens: Pushing, Quenching, and Battery Stacks, and Coke Oven Batteries; Residual Risk and Technology Review, and Periodic Technology Review
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- July 7, 2025Renewable Fuel Standard (RFS) Program: Partial Waiver of the 2024 Cellulosic Biofuel Volume Requirement
Final rule · Environmental Protection Agency · 40 CFR part 80 · Opens the Federal Register
- July 7, 2025Air Plan Approval; Ohio; Moderate Attainment Plan Elements for the Cleveland Area for the 2015 Ozone Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 7, 2025Air Plan Approval; West Virginia; Regional Haze State Implementation Plan for the Second Implementation Period
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 7, 2025Air Plan Approval; Louisiana; Interstate Transport Requirements for the 2010 SO2 NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 7, 2025Air Plan Approval; California; Revised Format for Nonregulatory Provisions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 7, 2025Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Oklahoma; Control of Emissions From Existing Municipal Solid Waste Landfills
Final rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- July 7, 2025Air Plan Approval; Florida; Revisions to Stationary Sources-Removal of Clean Air Interstate Rule Provisions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 3, 2025National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review: Interim Final Rule
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- July 3, 2025National Priorities List
Final rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- July 2, 2025National Volatile Organic Compound Emission Standards for Aerosol Coatings: Interim Final Rule
Final rule · Environmental Protection Agency · 40 CFR part 59 · Opens the Federal Register
- June 30, 2025Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Other Solid Waste Incineration Units Review
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- June 30, 2025Technical Amendment to the List of OMB Approvals Under the Paperwork Reduction Act
Final rule · Environmental Protection Agency · 40 CFR part 9 · Opens the Federal Register
- June 27, 2025Air Plan Approval; Idaho; Update to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 26, 2025Protection of Stratospheric Ozone; CFR Correction
Final rule · Environmental Protection Agency · 40 CFR part 82 · Opens the Federal Register
- June 24, 2025Pepino Mosaic Virus, Strain LP, Isolate VX1 and Pepino Mosaic Virus, Strain CH2, Isolate VC1; Exemptions From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 23, 2025Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
Final rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- June 23, 2025Significant New Use Rules on Certain Chemical Substances (24-2.5e)
Final rule · Environmental Protection Agency · 40 CFR parts 9, 721 · Opens the Federal Register
- June 20, 2025National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma
Final rule · Environmental Protection Agency · 40 CFR parts 61, 63 · Opens the Federal Register
- June 20, 2025Determination To Defer Sanctions; California; Eastern Kern Air Pollution Control District; Stationary Combustion Turbines
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 20, 2025Air Plan Approval; New York; Fuel Composition and Use
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 18, 2025Air Plan Approval; Colorado; Interim Final Determination to Stay and Defer Sanctions in the Denver Metro/North Front Range 2008 Ozone Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 17, 2025Hazardous Waste Management System; Identification and Listing of Hazardous Waste; Final Rule
Final rule · Environmental Protection Agency · 40 CFR part 261 · Opens the Federal Register
- June 16, 2025Vadescana Double-Stranded RNA; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 13, 2025Significant New Use Rules on Certain Chemical Substances (23-3.5e)
Final rule · Environmental Protection Agency · 40 CFR parts 9, 721 · Opens the Federal Register
- June 11, 2025Utah: Final Authorization of State Hazardous Waste Management Program Revisions and Incorporation by Reference
Final rule · Environmental Protection Agency · 40 CFR parts 271, 272 · Opens the Federal Register
- June 11, 2025Air Plan Approval; Arizona; Maricopa County Air Quality Department; Correction
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 10, 2025Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides (Capric (Decanoic) Acid, Caprylic (Octanoic) Acid, and Pelargonic (Nonanoic) Acid)
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 9, 2025Certain Existing Chemicals; Request To Submit Unpublished Health and Safety Data Under the Toxic Substances Control Act (TSCA); Extension of Submission Deadline
Final rule · Environmental Protection Agency · 40 CFR part 716 · Opens the Federal Register
- June 5, 2025Air Plan Approval; Florida; Second Planning Period Regional Haze Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 4, 2025Air Plan Approval; California; Revised Format for Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 4, 2025Determination To Defer Sanctions; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 3, 2025Clean Data Determination and Approval of Base Year Emissions Inventory; California; Los Angeles-South Coast Air Basin; 189(d) Plan for the 2006 24-Hour PM2.5 NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 29, 2025Florylpicoxamid; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- May 23, 2025Alabama: Final Authorization of State Hazardous Waste Management Program Revisions
Final rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- May 23, 2025Mississippi: Final Authorization of State Hazardous Waste Management Program Revisions
Final rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- May 20, 2025Emissions Budget and Allowance Allocations for Indiana Under the Revised Cross-State Air Pollution Rule Update
Final rule · Environmental Protection Agency · 40 CFR part 97 · Opens the Federal Register
- May 19, 2025Sulfentrazone; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- May 19, 2025Congressional Review Act Revocation of Waste Emissions Charge for Petroleum and Natural Gas Systems: Procedures for Facilitating Compliance, Including Netting and Exemptions
Final rule · Environmental Protection Agency · 40 CFR parts 2, 98, 99 · Opens the Federal Register
- May 19, 2025Air Plan Approval; Michigan; Attainment Plan for the Detroit 2010 Sulfur Dioxide Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 19, 2025Air Plan Approval; Texas; New Source Review Updates for Project Emissions Accounting
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 19, 2025Air Plan Approval; California; Mojave Desert Air Quality Management District; Oxides of Nitrogen
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 14, 2025L-Arginine in Pesticide Formulations; Exemption From the Requirement for a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- May 13, 2025Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Data Reporting and Recordkeeping Under the Toxic Substances Control Act (TSCA); Change to Submission Period
Final rule · Environmental Protection Agency · 40 CFR part 705 · Opens the Federal Register
- May 9, 2025Air Plan Approval; WA; Southwest Clean Air Agency; Revisions to Excess Emissions, Startup, Shutdown, and General Requirements
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 9, 2025Air Plan Approval; Alabama; Administrative Corrections and VOC Definition
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 8, 2025Air Plan Approval; Ohio; Nitrogen Oxide Budget Program
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 8, 2025Air Plan Approval; Colorado; Interim Final Determination To Stay and Defer Sanctions in the Denver Metro/North Front Range 2008 Ozone Nonattainment Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 8, 2025Adequacy Status of the Motor Vehicle Emissions Budget in the Fairbanks North Star Borough, Alaska Submitted 2006 24-Hour PM2.5 NAAQS Serious Area and 189(d) Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 8, 2025Air Quality Plans; California; Tehama County Air Pollution Control District; New Source Review
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 28, 2025Air Plan Approval; Pennsylvania; Redesignation of the Allegheny 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
Final rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- April 28, 2025Air Plan Approval; Kansas; Annual Emission Inventory and Fees
Final rule · Environmental Protection Agency · 40 CFR parts 52, 70 · Opens the Federal Register
- April 22, 2025Air Plan Approval; Connecticut; State Implementation Plan Revisions Required by the 2015 Ozone NAAQS
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 22, 2025Air Plan Approval; Wisconsin; Revised Format for Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 17, 2025Air Plan Approval; Ohio; Volatile Organic Compounds
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 16, 2025Air Plan Approval; Washington; Spokane Regional Clean Air Agency, General Air Quality Regulations
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 15, 2025Modification to 2022 National Pollutant Discharge Elimination System (NPDES) Construction General Permit (CGP) for Stormwater Discharges From Construction Activities
Final rule · Environmental Protection Agency · 40 CFR part 122 · Opens the Federal Register
- April 8, 2025Air Plan Approval; Texas; Vehicle Inspection and Maintenance Plan for Bexar County
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 7, 2025Choline Chloride in Pesticide Formulations; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- April 7, 2025Tiafenacil; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- April 4, 2025Air Plan Approval; District of Columbia, Maryland, Virginia; Determination of Attainment by the Attainment Date and Clean Data Determination for the Washington, DC-MD-VA Nonattainment Area for the 2015 Ozone National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 3, 2025Approval of Source-Specific Air Quality Implementation Plan; New York; Lehigh Cement Company LLC
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 2, 2025Interim Final Determination To Defer Sanctions, Placer County Air Pollution Control District
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 2, 2025Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
Final rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- April 1, 2025Air Plan Approval; Connecticut; Approval of State Implementation Plan Requirements for the 2008 Ozone Standard
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 31, 2025Partial Administrative Stay of National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- March 27, 2025Pseudomonas Oryzihabitans Strain SYM23945; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- March 26, 2025Interim Final Determination To Stay or Defer Sanctions; California; Antelope Valley Air Quality Management District
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 24, 2025Air Plan Approval; New York; Knowlton Technologies LLC
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 21, 2025Pyridate; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- March 21, 2025Interim Final Determination To Stay and Defer Sanctions; California; Sacramento Metro Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 20, 2025Potassium Polyaspartate in Pesticide Formulations; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- March 20, 2025Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule for 2024 Data
Final rule · Environmental Protection Agency · 40 CFR part 98 · Opens the Federal Register
- March 20, 2025Extension of Effective Date for Removal of Gasoline Volatility Waiver for Ohio and Nine Counties in South Dakota
Final rule · Environmental Protection Agency · 40 CFR part 1090 · Opens the Federal Register
- March 19, 2025Air Plan Revisions; California; Feather River Air Quality Management District
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 18, 2025Air Plan Approval; California; Eastern Kern Air Pollution Control District; Tehama County Air Pollution Control District; San Diego County Air Pollution Control District; Emissions Statement Requirements
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 14, 2025Renewable Fuel Standard (RFS) Program: Extension of 2024 Compliance Reporting Deadline
Final rule · Environmental Protection Agency · 40 CFR part 80 · Opens the Federal Register
- March 13, 2025Certain Existing Chemicals; Request To Submit Unpublished Health and Safety Data Under the Toxic Substances Control Act (TSCA); Extension of Submission Deadline
Final rule · Environmental Protection Agency · 40 CFR part 716 · Opens the Federal Register
- March 11, 2025Metamitron; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- March 7, 2025Air Plan Approval; SC; Updates to the Cross-State Air Pollution Rule
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 5, 2025Deletion From the National Priorities List
Final rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- March 3, 2025Hazardous Waste Management System; Identification and Listing of Hazardous Waste
Final rule · Environmental Protection Agency · 40 CFR part 261 · Opens the Federal Register
- Feb. 28, 2025Air Plan Approval; New Jersey; Permits and Certificates for Minor Facilities (and Major Facilities Without an Operating Permit), and Air Emission Control and Permitting Exemptions
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 26, 2025West Virginia Underground Injection Control (UIC) Program; Class VI Primacy
Final rule · Environmental Protection Agency · 40 CFR part 147 · Opens the Federal Register
- Feb. 26, 2025Cyprodinil; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 25, 2025Bacillus Thuringiensis Strain EX 297512 in Pesticide Formulations; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 25, 2025Bacillus Thuringiensis Cry1B.34 Protein; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 174 · Opens the Federal Register
- Feb. 25, 2025Beauveria Bassiana Strain BW149; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 25, 2025Inactivated Burkholderia Rinojensis Strain A396 Cells and Spent Fermentation Media; Exemption From the Requirement of a Tolerance
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 25, 2025Fludioxonil; Pesticide Tolerances
Final rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Feb. 14, 2025Designation of Areas for Air Quality Planning Purposes
Final rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- Feb. 5, 2025Delay of Effective Date for 2 Final Regulations Published by the Environmental Protection Agency Between December 11, 2024, and January 6, 2025
Final rule · Environmental Protection Agency · 40 CFR parts 261, 262, 266 and 1 more · Opens the Federal Register
- Jan. 28, 2025Delay of Effective Date for 4 Final Regulations Published by the Environmental Protection Agency Between November 29, 2024, and December 31, 2024
Final rule · Environmental Protection Agency · 40 CFR parts 51, 52, 81 and 1 more · Opens the Federal Register
- Jan. 21, 2025Air Plan Approval; Ohio; Withdrawal of Technical Amendment
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 21, 2025Approval and Promulgation of Implementation Plans; State of California; Coachella Valley; Extreme Attainment Plan for 1997 8-Hour Ozone Standards
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 21, 2025Interim Final Determination To Defer Sanctions, San Joaquin Valley Unified Air Pollution Control District
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 17, 2025Revisions to the Federal Implementation Plan for the Billings/Laurel, Montana, Sulfur Dioxide Area
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 17, 2025State Implementation Plan Submittal Deadlines and Implementation Requirements for Reclassified Nonattainment Areas Under the Ozone National Ambient Air Quality Standards
Final rule · Environmental Protection Agency · 40 CFR part 51 · Opens the Federal Register
- Jan. 17, 2025National Volatile Organic Compound Emission Standards for Aerosol Coatings Amendments
Final rule · Environmental Protection Agency · 40 CFR part 59 · Opens the Federal Register
- Jan. 17, 2025Air Plan Approval; Washington; Olympic Region Clean Air Agency, Recreational Fires
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 17, 2025Air Plan Approval; AK; Updates to Materials Incorporated by Reference
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 16, 2025Air Plan Approval; Arizona; Maricopa County Air Quality Department
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 16, 2025Air Plan Approval; Montana; Missoula, Montana Oxygenated Fuels Program Removal, Carbon Monoxide, Limited Maintenance Plan
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 16, 2025Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures
Final rule · Environmental Protection Agency · 40 CFR part 141 · Opens the Federal Register
- Jan. 16, 2025Clean Air Act Operating Permit Program; Notice of Issuance of Title V Federal Operating Permit to Deseret Generation and Transmission Co-operative
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 16, 2025Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Legacy CCR Surface Impoundments; Correction
Final rule · Environmental Protection Agency · 40 CFR parts 9, 257 · Opens the Federal Register
- Jan. 15, 2025Fuels Regulatory Streamlining Sampling and Testing Updates
Final rule · Environmental Protection Agency · 40 CFR part 1090 · Opens the Federal Register
- Jan. 15, 2025New Source Performance Standards for Greenhouse Gas Emissions From New, Modified, and Reconstructed Fossil Fuel-Fired Electric Generating Units; Emission Guidelines for Greenhouse Gas Emissions From Existing Fossil Fuel-Fired Electric Generating Units; and Repeal of the Affordable Clean Energy Rule; Final Action
Final rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- Jan. 10, 2025Air Plan Revisions; Arizona; Maricopa County Air Quality Department
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 8, 2025Interim Final Determination To Defer Sanctions; AK, Fairbanks North Star Borough
Final rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 8, 2025Civil Monetary Penalty Inflation Adjustment
Final rule · Environmental Protection Agency · 40 CFR part 19 · Opens the Federal Register
- Jan. 7, 2025National Emission Standards for Hazardous Air Pollutants: National Perchloroethylene Air Emission Standards for Dry Cleaning Facilities Technology Review
Final rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Jan. 6, 2025Significant New Use Rules on Certain Chemical Substances (19-5.F)
Final rule · Environmental Protection Agency · 40 CFR parts 9, 721 · Opens the Federal Register
- Jan. 6, 2025Implementing Statutory Addition of Certain Per- and Polyfluoroalkyl Substances (PFAS) to Toxics Release Inventory (TRI) Beginning With Reporting Year 2025
Final rule · Environmental Protection Agency · 40 CFR part 372 · Opens the Federal Register
Proposed rules 410
- Nov. 2, 2026Significant New Use Rules on Certain Chemical Substances (26-7)
Proposed rule · Environmental Protection Agency · 40 CFR part 721
- Oct. 29, 2026
- Oct. 29, 2026
- Oct. 29, 2026
- Oct. 29, 2026Alaska Underground Injection Control (UIC) Program; Class VI Primacy
Proposed rule · Environmental Protection Agency · 40 CFR part 147
- Oct. 22, 2026Utah Underground Injection Control Program; Class VI Primacy
Proposed rule · Environmental Protection Agency · 40 CFR part 147
- Oct. 19, 2026
- Oct. 19, 2026
- Oct. 19, 2026
- Oct. 19, 2026
- Oct. 16, 2026Renewable Fuel Standard (RFS) Program: Reallocation of Additional 2025 Small Refinery Exemptions
Proposed rule · Environmental Protection Agency · 40 CFR parts 80, 1090
- Oct. 14, 2026
- Oct. 8, 2026
- Oct. 7, 2026
- Oct. 6, 2026Initial Air Quality Designations for the 2024 Revised Primary Annual Fine Particle (PM2.5) National Ambient Air Quality Standards (NAAQS)
Proposed rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- Oct. 1, 2026Air Plan Approval; OR; Lane County Title 36 Rule
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 1, 2026Approval of Implementation Plans for Air Quality Planning Purposes; State of Nevada; Truckee Meadows Second 10-Year Maintenance Plan for the 1987 PM-10 Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 28, 2026National Emission Standards for Hazardous Air Pollutants for Gasoline Distribution Facilities and Standards of Performance for Bulk Gasoline Terminals Reconsideration
Proposed rule · Environmental Protection Agency · 40 CFR parts 60, 63 · Opens the Federal Register
- Sept. 25, 2026Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 23, 2026Air Plan Approval; North Carolina; Charlotte-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 23, 2026Public Water System Supervision Program Revision for the State of Arkansas
Proposed rule · Environmental Protection Agency · 40 CFR part 142 · Opens the Federal Register
- Sept. 17, 2026Rescission 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
Proposed rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- Sept. 16, 2026Indiana: Approval of State Coal Combustion Residuals Permit Program
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- Sept. 14, 2026Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Maryland; Negative Declaration for Existing Other Solid Waste Incinerators
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Sept. 14, 2026Clean Data Determination; 1997 8-Hour Ozone Standards; California; Sacramento Metro Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 14, 2026Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; District of Columbia; Negative Declaration for Existing Other Solid Waste Incinerators
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Sept. 11, 2026Wisconsin: Approval of State Coal Combustion Residuals Permit Program
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- Sept. 9, 2026Air 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
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 4, 2026Updates to the National Pollutant Discharge Elimination System Definitions and Exclusions
Proposed rule · Environmental Protection Agency · 40 CFR part 122 · Opens the Federal Register
- Aug. 27, 2026Approval 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
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Aug. 27, 2026Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Puerto Rico; Negative Declaration for the Oil and Gas Industry
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Aug. 27, 2026Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Allegheny County; Negative Declaration for Existing Large Municipal Waste Combustors
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Aug. 27, 2026Air Plan Approval; Oklahoma; Regional Haze Plan for the First Implementation Revision; Revision to State Implementation Plan and Requirements
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 27, 2026Air Plan Approval; Kentucky; Louisville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 27, 2026Air Plan Approval; Kentucky; Cincinnati-Hamilton Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 27, 2026Air Plan Approval; Mississippi; 2010 1-Hour SO2 NAAQS Transport Infrastructure
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 20, 2026Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-June 2026
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- Aug. 20, 2026Proposed Deletion From the National Priorities List
Proposed rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- Aug. 19, 2026Air Plan Approval; South Carolina; Minor Source Permit Program Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 19, 2026Air Plan Partial Approval and Partial Conditional Approval; South Carolina; Control of Oxides of Nitrogen and Source Testing Requirements
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 19, 2026Air Plan Approval; South Carolina; Minor Source Permit Program Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 17, 2026Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-May 2026
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- Aug. 14, 2026Air Plan Approval; Iowa; Interstate Transport Requirements for the 2010 Sulfur Dioxide Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 14, 2026Air Plan Approval; Missouri; Moderate Attainment Plan Elements for the 2015 8-Hour Ozone Standard for the Missouri Portion of the St. Louis Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 14, 2026Air 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
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 13, 2026Air Plan Approval; Commonwealth of Virginia; Transfer of Authority and Requests for Certain Public Hearings on Air Permits
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 11, 2026Air Plan Approval; New Hampshire; Repeal of Motor Vehicle Inspection and Maintenance Program
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 11, 2026Response to Clean Air Act Section 176A Petition From New Hampshire
Proposed rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- Aug. 11, 2026Air Quality Plan; Arizona; Maricopa County Air Quality Department; Gasoline Loading
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 6, 2026Air Plan Approval; Illinois; 2015 Ozone Moderate and Serious Reasonably Available Control Technology Update
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 30, 2026Significant New Use Rules on Certain Chemical Substances (26-4)
Proposed rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- July 30, 2026Clean 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
Proposed rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- July 30, 2026Air Plan Approval; Missouri; Construction Permit Exemptions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 30, 2026Air 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
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- July 28, 2026Air Plan Approval; Michigan; Redesignation of the Berrien, MI and Muskegon, MI Areas to Attainment of the 2015 Ozone Standards
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- July 28, 2026Air Plan Approval; Michigan; Redesignation of the Detroit, MI Area to Attainment of the 2015 Ozone Standards
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- July 23, 2026Significant New Use Rules on Certain Chemical Substances (26-3)
Proposed rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- July 23, 2026Air Plan Approval; Pennsylvania; Revision to Source-Specific Reasonably Available Control Technology (RACT) Requirements
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 23, 2026Air 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
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 23, 2026Approval and Promulgation of State Implementation Plans; New Jersey; RACT Certifications for the 2008 and 2015 Ozone National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2026Air 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)
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2026Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants; Nebraska; Commercial and Industrial Solid Waste Incineration Units
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- July 15, 2026Air Plan Approval; Missouri; Control of NOX Emissions From Large Stationary Internal Combustion Engines
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 15, 2026Approval of Source-Specific Air Quality Implementation Plan; New York; Castleton Power, LLC
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 15, 2026Air Plan Approval; Wisconsin; Source-Specific Air Quality Implementation Plan; Oak Creek Power Plant
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 14, 2026Amendments and Nonconformance Penalties for Model Year 2027 and Later Heavy-Duty Highway Engines and Amendments to Inducement Provisions for SCR-Equipped Diesel Engines
Proposed rule · Environmental Protection Agency · 40 CFR parts 86, 1036, 1037 and 3 more · Opens the Federal Register
- July 14, 2026Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Federal CCR Permit Program; General Permit Provisions
Proposed rule · Environmental Protection Agency · 40 CFR parts 22, 124, 257 · Opens the Federal Register
- July 14, 2026Alabama: Approval of State Coal Combustion Residuals Permit Program
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- July 9, 2026Approval and Promulgation of Implementation Plans; California; San Joaquin Valley; Revisions to Motor Vehicle Emissions Budgets for Ozone
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 7, 2026Minor New Source Review Program Air Permitting Public Participation Requirements for State Implementation Plans
Proposed rule · Environmental Protection Agency · 40 CFR part 51 · Opens the Federal Register
- July 6, 2026Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-April 2026
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- July 2, 2026Air Plan Approval; Alabama; Transportation Conformity
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 2, 2026Federal 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
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- July 1, 2026Revisions To Establish the Sixth Unregulated Contaminant Monitoring Rule (UCMR 6) for Public Water Systems
Proposed rule · Environmental Protection Agency · 40 CFR part 141 · Opens the Federal Register
- June 26, 2026Air Quality Plan; California; Mojave Desert Air Quality Management District; Rescissions of Outdated Requirements Within Riverside County
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 25, 2026Update of Procedures for Implementing the National Environmental Policy Act and Assessing the Environmental Effects Abroad of EPA Actions
Proposed rule · Environmental Protection Agency · 40 CFR part 6 · Opens the Federal Register
- June 23, 2026Air Plan Approval; Colorado; RACT Requirements for the 2008 8-Hour Ozone Standard for the Denver Metro/North Front Range Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 23, 2026Approval and Promulgation of Implementation Plans; Arizona; Revisions to the Cleaner Burning Gasoline, Winter Oxygenated Fuel, and Gasoline Set-Aside Programs
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 22, 2026Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-March 2026
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- June 22, 2026National 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
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- June 15, 2026Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-February 2026
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- June 12, 2026Ozone Reclassification State Implementation Plan Rule
Proposed rule · Environmental Protection Agency · 40 CFR part 51 · Opens the Federal Register
- June 12, 2026Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-January 2026
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- June 11, 2026Attainment Date Extension for the San Joaquin Valley, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 11, 2026Attainment Date Extension for the South Coast, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 10, 2026Significant New Use Rules on Certain Chemical Substances (26-1)
Proposed rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- June 8, 2026Approval and Promulgation of Air Quality Implementation Plans; Wyoming; Regional Haze Federal Implementation Plan
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 5, 2026Louisiana: Approval of State Coal Combustion Residuals Permit Program
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- June 5, 2026Significant New Use Rules on Certain Chemical Substances (25-3.5e)
Proposed rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- June 3, 2026Rescinding the Regulations for Arbitration Requirements and Procedures for Small Superfund Cost Recovery Claims
Proposed rule · Environmental Protection Agency · 40 CFR part 304 · Opens the Federal Register
- June 3, 2026Amending the Administrative Hearing Procedures for Claims Against the Hazardous Substance Superfund Pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act
Proposed rule · Environmental Protection Agency · 40 CFR part 305 · Opens the Federal Register
- May 29, 2026Air Plan Approval; Michigan; Determination of Attainment by the Attainment Date for the 2015 Ozone Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 28, 2026Air Plan Approval; SC; Department Name Change
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 28, 2026Approval of Source-Specific Air Quality Implementation Plan; New York; Big Six Towers Inc.
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 28, 2026Air Plan Approval; Ohio; Removal of Air Nuisance Rule
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 26, 2026Phasedown of Hydrofluorocarbons: Excluding Road and Intermodal Container Transport Refrigeration Units From the Hydrofluorocarbon Leak Repair Requirements
Proposed rule · Environmental Protection Agency · 40 CFR part 84 · Opens the Federal Register
- May 21, 2026Air Plan Approval; FL; Emissions Reporting Requirements and Permitting Forms
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 20, 2026Rescission 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)
Proposed rule · Environmental Protection Agency · 40 CFR parts 141, 142 · Opens the Federal Register
- May 20, 2026Extending the Compliance Deadline for the PFOA and PFOS Maximum Contaminant Levels
Proposed rule · Environmental Protection Agency · 40 CFR part 142 · Opens the Federal Register
- May 18, 2026Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Unmanaged Combustion Residual Leachate
Proposed rule · Environmental Protection Agency · 40 CFR part 423 · Opens the Federal Register
- May 18, 2026Revision of Tier 4 Criteria Pollutant Standards, Part 1: Amendments to Phase-In Schedule for Light-Duty and Medium-Duty Vehicles
Proposed rule · Environmental Protection Agency · 40 CFR parts 85, 86, 1066 · Opens the Federal Register
- May 14, 2026Alaska: Tentative Determination on Final Authorization of State Hazardous Waste Management Program
Proposed rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- May 14, 2026Determination of Attainment by the Attainment Date and Clean Data Determination for the 2012 Annual Fine Particulate Standard; Plumas County, California
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- May 13, 2026Begin Actual Construction in the New Source Review (NSR) Preconstruction Permitting Program
Proposed rule · Environmental Protection Agency · 40 CFR parts 49, 51, 52 · Opens the Federal Register
- May 8, 2026Air Plan Approval; NC; Removal of the State's Vehicle Inspection and Maintenance Program
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 7, 2026Air Plan Approval; Missouri; Attainment Plan for the New Madrid Nonattainment Area for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 7, 2026Air Quality Plan; California; San Diego County Air Pollution Control District; Landfill Flares
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 4, 2026Virginia: Approval of State Coal Combustion Residuals Permit Program
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- May 1, 2026National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review Reconsideration; Extension of Comment Period
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- April 30, 2026Utah; 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
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- April 30, 2026Air Plan Approval; Delaware; Excess Emissions Provisions Pertaining to Periods of Startup, Shutdown and Malfunction Events
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 29, 2026Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 24, 2026Significant New Use Rules on Certain Chemical Substances (26-2)
Proposed rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- April 23, 2026Kentucky; Approval and Promulgation of State Plan for Designated Facilities and Pollutants; Control of Emissions From Existing Municipal Solid Waste Landfills
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- April 23, 2026Utah; 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
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- April 23, 2026Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 23, 2026Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 22, 2026National Emission Standards for Hazardous Air Pollutants: Crude Oil and Natural Gas Production Facilities and Natural Gas Transmission and Storage Facilities; Technology Review and Reconsideration
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- April 16, 2026Air Plan Revisions; Arizona; Maricopa County Air Quality Department; New Source Review; Emission Reduction Credits
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 13, 2026Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Legacy/CCRMU Amendments
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- April 10, 2026Air Plan Approval and Air Quality Designation; Ohio; Attainment Plan and Redesignation of the Canton Area to Attainment of the 2008 Lead Standard
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- April 10, 2026Air Plan Approval; New York; Interstate Transport Requirements for the 2010 SO2 NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 10, 2026Air Plan Approval; Ohio; Source-Specific Non-CTG RACT for Ohio
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 10, 2026Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- April 10, 2026Air Plan Approvals; Indiana; Prong 4 (Visibility) for the 2015 Ozone National Ambient Air Quality Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 10, 2026Air Plan Approval; Ohio; Redesignation of the Cleveland, OH Area to Attainment of the 2015 Ozone Standards
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- April 9, 2026Air Plan Approval; Missouri; Revisions to Existing Rule 10 CSR 10-5.570; Control of Sulfur Emissions From Stationary Boilers
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 8, 2026Update to EPAAR Text of Provisions and Clauses, Signing of Uniform Hazardous Wastes Manifests
Proposed rule · Environmental Protection Agency · 48 CFR parts 1523, 1552 · Opens the Federal Register
- April 6, 2026Drinking Water Contaminant Candidate List 6-Draft
Proposed rule · Environmental Protection Agency · 40 CFR part 141 · Opens the Federal Register
- April 6, 2026Protection 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
Proposed rule · Environmental Protection Agency · 40 CFR part 82 · Opens the Federal Register
- April 2, 2026Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 2, 2026Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 2, 2026Clean Air Act Operating Permit Program Revision; California; Monterey Bay Air Resources District
Proposed rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- March 30, 2026Reporting Deadline Extension for the Health and Safety Data Reporting Rule Under Toxic Substance Control Act (TSCA) Section 8(d)
Proposed rule · Environmental Protection Agency · 40 CFR part 716 · Opens the Federal Register
- March 27, 2026Perchloroethylene (PCE) and Carbon Tetrachloride (CTC); Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extensions
Proposed rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- March 26, 2026Florida: Final Authorization of State Hazardous Waste Management Program Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- March 26, 2026Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 70 · Opens the Federal Register
- March 26, 2026Hazardous Waste Management System; Identification and Listing of Hazardous Waste
Proposed rule · Environmental Protection Agency · 40 CFR part 261 · Opens the Federal Register
- March 23, 2026Protecting Public Health and Unleashing American Energy by Facilitating Scrap Tire Pile Cleanups
Proposed rule · Environmental Protection Agency · 40 CFR part 241 · Opens the Federal Register
- March 23, 2026Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Louisiana; Control of Emissions From Existing Other Solid Waste Incineration Units
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- March 23, 2026Approval and Promulgation of State Plans for Designated Facilities and Pollutants; West Virginia; Control of Emissions From Existing Municipal Solid Waste Landfills
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- March 20, 2026Standards 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
Proposed rule · Environmental Protection Agency · 40 CFR parts 60, 62 · Opens the Federal Register
- March 19, 2026Colorado Underground Injection Control Program; Class VI Primacy
Proposed rule · Environmental Protection Agency · 40 CFR part 147 · Opens the Federal Register
- March 17, 2026National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review Reconsideration
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- March 13, 2026Air 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
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 12, 2026Marine Protection: Modification To Expand Ocean Dredged Material Disposal Sites Offshore of Corpus Christi, Texas
Proposed rule · Environmental Protection Agency · Opens the Federal Register
- March 12, 2026Air Plan Approval; Michigan; Clean Data Determination for the Berrien, MI and Muskegon, MI Areas for the 2015 Ozone Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 5, 2026Paper Manifest Sunset Rule; Modification of the Hazardous Waste Manifest Regulations
Proposed rule · Environmental Protection Agency · 40 CFR parts 260, 261, 262 and 7 more · Opens the Federal Register
- March 5, 2026Clean Water Act Hazardous Substance Facility Response Plans: Compliance Date Delay and Changes To Reflect Administration Policy
Proposed rule · Environmental Protection Agency · 40 CFR part 118 · Opens the Federal Register
- March 4, 2026National Emission Standards for Marine Tank Vessel Loading Operations: Technology Review
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- March 4, 2026Proposed Deletion From the National Priorities List
Proposed rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- March 4, 2026Air Plan Approval; OR; Klamath Falls PM2.5 Redesignation to Attainment and Maintenance Plan
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- March 4, 2026Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Texas; Control of Emissions From Existing Municipal Solid Waste Landfills
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- March 4, 2026Air Plan Approval; Arizona; Attainment Plan for the Hayden SO2 Nonattainment Area for the 1971 and 2010 Sulfur Dioxide National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 27, 2026Air Plan Approval; Ohio; Source-Specific Non-CTG RACT and SIP Strengthening for Ohio
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 27, 2026Air Plan Approval; Indiana; Keystone VOC RACT Alternative Control
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 27, 2026Air Plan Approval; Ohio; Clean Data Determination for the Cleveland, Ohio Area for the 2015 Ozone Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 27, 2026Air 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
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 27, 2026Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 26, 2026Air Plan Approval; Missouri; Clean Data Determination for the 2015 8-Hour Ozone Standard for the Missouri Portion of the St. Louis Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 26, 2026Air Plan Approval; Illinois; Clean Data Determination for the Illinois Portion of the St. Louis Area for the 2015 Ozone Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 26, 2026Approval of Missouri's Request for Partial Program Delegation of Clean Air Act Section 112(r) Prevention of Accidental Release Program
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Feb. 24, 2026Accidental Release Prevention Requirements: Risk Management Programs Under the Clean Air Act; Common Sense Approach to Chemical Accident Prevention
Proposed rule · Environmental Protection Agency · 40 CFR part 68 · Opens the Federal Register
- Feb. 24, 2026Prior Notice of Citizen Suits
Proposed rule · Environmental Protection Agency · 40 CFR parts 54, 135, 210 and 3 more · Opens the Federal Register
- Feb. 18, 2026Clean Water Act Hazardous Substance Facility Response Plans; Amendment Reconsideration
Proposed rule · Environmental Protection Agency · 40 CFR part 118 · Opens the Federal Register
- Feb. 17, 2026Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regional Haze State Implementation Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 12, 2026Air Plan Approval; New York; New York Metropolitan Area Second Ten-Year Limited Maintenance Plan for the 2006 24-Hour PM2.5 Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 12, 2026Partial 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
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Feb. 12, 2026Air Plan Approval; Oklahoma; Interstate Transport Requirements for the 2010 SO2 NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 12, 2026Air Plan Approval; Illinois; Moderate Attainment Plan Elements for the Chicago and Metro East Areas for the 2015 Ozone Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 12, 2026Approval and Promulgation of Air Quality Implementation Plans; Oklahoma; Regional Haze State Implementation Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 12, 2026Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Gila County Reasonably Available Control Technology
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 11, 2026Voluntary Consensus Standards Update; Formaldehyde Emission Standards for Composite Wood Products
Proposed rule · Environmental Protection Agency · 40 CFR part 770 · Opens the Federal Register
- Feb. 6, 2026US Ecology Nevada, Inc. High Mercury Subcategory Wastes Land Disposal Restrictions Variance
Proposed rule · Environmental Protection Agency · 40 CFR part 268 · Opens the Federal Register
- Feb. 6, 2026Air 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
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 2, 2026Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals In or On Various Commodities-December 2025
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- Jan. 30, 2026Interstate Transport Plan Review for the 2015 Ozone NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 29, 2026Determination of Attainment by the Attainment Date for the Louisville Moderate Area for the 2015 Ozone National Ambient Air Quality Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 28, 2026Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-November 2025
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- Jan. 27, 2026Freedom of Information Act Regulations Update
Proposed rule · Environmental Protection Agency · 40 CFR part 2 · Opens the Federal Register
- Jan. 23, 2026Air Plan Approval; Maryland; Clean Data Determination for the Baltimore, MD Nonattainment Area for the 2015 Ozone National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 23, 2026Air Plan Approval; Montana; Revisions to Western Sugar Stipulation
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 15, 2026Updating the Water Quality Certification Regulations
Proposed rule · Environmental Protection Agency · 40 CFR part 121 · Opens the Federal Register
- Jan. 15, 2026Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 9, 2026Air Plan Approval; Ohio; Ohio Permit Rules Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 8, 2026Air Plan Approval; Missouri; Construction Permits Required
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 8, 2026Clean Air Act Title V Operating Permit Program Revision; District of Columbia
Proposed rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- Jan. 6, 2026National Primary Drinking Water Regulation for Perchlorate
Proposed rule · Environmental Protection Agency · 40 CFR parts 141, 142 · Opens the Federal Register
- Jan. 2, 2026Air Plan Approval; CO; Revisions to Colorado Procedural Rules and Common Provisions Regulation
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 2, 2026Proposed 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
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 31, 2025No-Migration Variance From Land Disposal Restrictions for Clean Harbors Grassy Mountain, Utah
Proposed rule · Environmental Protection Agency · 40 CFR part 268 · Opens the Federal Register
- Dec. 22, 2025Petition To Delist Hazardous Air Pollutant: 2-Butoxyethyl Benzoate (2-BEB)
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Dec. 16, 2025Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-October 2025
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- Dec. 15, 2025Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-August 2025
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- Dec. 11, 2025Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Atrazine, et al.
Proposed rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Dec. 11, 2025Air Plan Approval; California; San Joaquin Valley Air Pollution Control District
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 11, 2025Air Plan Approval; Virginia; Amendment to the State Operating Permit for GP Big Island, LLC
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 11, 2025No-Migration Variance From Land Disposal Restrictions for Clean Harbors Lone Mountain, Oklahoma
Proposed rule · Environmental Protection Agency · 40 CFR part 248 · Opens the Federal Register
- Dec. 11, 2025Air Plan Disapproval; Ohio; E-Check Attestation Provisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 11, 2025Air Plan Approval; Michigan; Moderate Attainment Plan Elements for the Allegan County, Berrien County, and Muskegon County Areas for the 2015 Ozone Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 11, 2025Air Plan Approval; New Hampshire; Single Source VOC RACT Order for Hutchinson Sealing Systems
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Dec. 1, 2025Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-September 2025
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- Nov. 28, 2025Air Plan Approval; Missouri; Reporting Emission Data, Emission Fees, and Process Information
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 70 · Opens the Federal Register
- Nov. 28, 2025Air Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 28, 2025Air Plan Approval; Virginia; Repeal of Existing Stationary Source Regulations
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 28, 2025Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Extension of an Alternative Closure Requirement Deadline
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- Nov. 26, 2025Air Plan Approval; Ohio; Emergency Episodes and Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 24, 2025Review of National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review; Reopening of Comment Period
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Nov. 21, 2025Air Plan Approval; Indiana; Second Maintenance Plan for 2008 Ozone NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; Pennsylvania; Redesignation Request for the Allegheny County Area for the 2012 Annual Fine Particulate Matter Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- Nov. 20, 2025Approval 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
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; District of Columbia; Creation of Synthetic Minor Permit Program
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Approval and Promulgation of State Air Quality Plans (Negative Declarations) for Designated Facilities and Pollutants; District of Columbia
Proposed rule · Environmental Protection Agency · 40 CFR part 62 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; Minnesota; Metropolitan Council Wastewater Treatment Plant Title I PM10 SIP Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Air 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
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; Connecticut; Ozone Ambient Air Quality Standard and Adhesive and Sealants Regulation Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Operating Permit Program Approval; New Hampshire; Revised Definitions
Proposed rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- Nov. 20, 2025Finding 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
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; Maine; Chapter 140: Part 70 Air Emission License Regulation
Proposed rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- Nov. 20, 2025Air Plan Approval; New York; Athens Generating Plant
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 19, 2025Determination of Attainment by the Attainment Date but for International Emissions for the 2015 Ozone National Ambient Air Quality Standards; Phoenix-Mesa Nonattainment Area, Arizona
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 18, 2025Ohio: Proposed Authorization of State Hazardous Waste Management Program Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- Nov. 17, 2025Technical Amendments to the EPCRA Hazardous Chemical Inventory Reporting Requirements To Conform to the 2024 OSHA Hazard Communication Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 370 · Opens the Federal Register
- Nov. 17, 2025Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP Provisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 17, 2025Approval of Source-Specific Air Quality Implementation Plan; New York; Calpine JFK Energy Center
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 14, 2025Approval of Clean Air Plans; San Joaquin Valley, California; Contingency Measures for 1997 Ozone Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Nov. 14, 2025Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Promulgated Under the Technology Transitions Provisions of the American Innovation and Manufacturing Act of 2020; Extension of Comment Period
Proposed rule · Environmental Protection Agency · 40 CFR part 84 · Opens the Federal Register
- Nov. 13, 2025Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Data Reporting and Recordkeeping Under the Toxic Substances Control Act (TSCA); Revision to Regulation
Proposed rule · Environmental Protection Agency · 40 CFR part 705 · Opens the Federal Register
- Nov. 10, 2025Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program in Refrigeration and Air Conditioning and Fire Suppression
Proposed rule · Environmental Protection Agency · 40 CFR part 82 · Opens the Federal Register
- Nov. 3, 2025Significant New Use Rules on Certain Chemical Substances (25-1.5e)
Proposed rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- Nov. 3, 2025Significant New Use Rules on Certain Chemical Substances (24-5.5e)
Proposed rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- Nov. 3, 2025Significant New Use Rules on Certain Chemical Substances (25-2.5e)
Proposed rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- Oct. 30, 2025Air Plan Approval; AK; Regional Haze Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 28, 2025Modification of Significant New Use Rules of Certain Chemical Substances (23-1.M)
Proposed rule · Environmental Protection Agency · 40 CFR parts 721, 725 · Opens the Federal Register
- Oct. 23, 2025Approval and Promulgation of Air Quality Implementation Plans; Nevada; Regional Haze State Implementation Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 23, 2025Air Plan Approval; Arizona; Interstate Transport Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Oct. 3, 2025Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Promulgated Under the Technology Transitions Provisions of the American Innovation and Manufacturing Act of 2020
Proposed rule · Environmental Protection Agency · 40 CFR part 84 · Opens the Federal Register
- Oct. 2, 2025Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Deadline Extensions
Proposed rule · Environmental Protection Agency · 40 CFR part 423 · Opens the Federal Register
- Oct. 2, 2025Air Plan Approval; Ohio; Muskingum River 2010 Sulfur Dioxide Redesignation and Maintenance Plan
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Oct. 2, 2025Visibility Protection: Regional Haze State Plan Requirements Rule Revision
Proposed rule · Environmental Protection Agency · 40 CFR part 51 · Opens the Federal Register
- Oct. 1, 2025National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Sept. 29, 2025Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-July 2025
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- Sept. 25, 2025Utah; Northern Wasatch Front; 2015 8-Hour Ozone Nonattainment Area Boundary Expansion and Applicability of Certain Clean Air Act Requirements
Proposed rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- Sept. 25, 2025Air Plan Approval; Indiana; Huntington County 2010 Sulfur Dioxide Redesignation and Maintenance Plan
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Sept. 25, 2025Air Plan Approval; Oregon; 2024 Vehicle Inspection Program Updates
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 25, 2025Air Plan Approval; Virginia; Revision to the Regulatory Definition of Volatile Organic Compound
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 25, 2025Air Plan Approval; Ohio; Volatile Organic Compounds RFD Beaufort
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 23, 2025Procedures for Chemical Risk Evaluation Under the Toxic Substances Control Act (TSCA)
Proposed rule · Environmental Protection Agency · 40 CFR part 702 · Opens the Federal Register
- Sept. 18, 2025Hawaii: Final Approval of State Underground Storage Tank Program Revisions, Codification, and Incorporation by Reference
Proposed rule · Environmental Protection Agency · 40 CFR parts 281, 282 · Opens the Federal Register
- Sept. 18, 2025Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and Other Changes; Supplemental Notice of Proposed Rulemaking
Proposed rule · Environmental Protection Agency · 40 CFR parts 80, 1090 · Opens the Federal Register
- Sept. 16, 2025Reconsideration of the Greenhouse Gas Reporting Program
Proposed rule · Environmental Protection Agency · 40 CFR part 98 · Opens the Federal Register
- Sept. 12, 2025Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Air Plan Approval; Wyoming; R-35 Wyoming Air Quality Standards and Regulations Rule Package
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Air Plan Revisions; Arizona; Maricopa County Air Quality Department; Volatile Organic Compounds; Solvent Cleaning
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Air Plan Approval; Montana; Regional Haze Plan for the Second Implementation Period; Prong 4 (Visibility) for the 2015 8-Hour Ozone National Ambient Air Quality Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Air Plan Approval; Arizona; Maricopa County Air Quality Department; Volatile Organic Compounds; Architectural Coatings
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Air Plan Revisions; Arizona; Maricopa County Air Quality Department; Particulate Matter; Incinerators, Burn-Off Ovens, and Crematories
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Approval of Air Quality Implementation Plans; Arizona; Arizona Department of Environmental Quality; Stationary Source Permits; West Pinal County; PM10
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Proposed Deletion From the National Priorities List
Proposed rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- Sept. 11, 2025Maryland: Final Approval of State Underground Storage Tank Program Revisions, Codification, and Incorporation by Reference
Proposed rule · Environmental Protection Agency · 40 CFR part 282 · Opens the Federal Register
- Sept. 11, 2025Minnesota: Final Approval of State Underground Storage Tank Program Revisions, Codification, and Incorporation by Reference
Proposed rule · Environmental Protection Agency · 40 CFR part 282 · Opens the Federal Register
- Sept. 11, 2025Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 11, 2025Authorization of State Hazardous Waste Management Program Revisions: California
Proposed rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- Sept. 5, 2025Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-June 2025
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- Sept. 5, 2025Revisions to the Clean Air Act Operating Permit Program; California; San Diego County Air Pollution Control District
Proposed rule · Environmental Protection Agency · 40 CFR part 70 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; Arkansas; Regional Haze State Implementation Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; Kentucky; Emissions Inventory and Nonattainment New Source Review for the Henderson-Webster Sulfur Dioxide Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; South Carolina; Charlotte-Gastonia-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 5, 2025Massachusetts: Final Authorization of State Hazardous Waste Management Program Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; OR; Lane County Permitting Rule Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; Texas; Reasonably Available Control Technology in the Houston-Galveston-Brazoria Ozone Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 5, 2025Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth Ozone Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 2, 2025Air Plan Approval; GA; Removal of Nonattainment Area New Source Review
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Sept. 2, 2025Wyoming: Approval of State Coal Combustion Residuals Permit Program
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- Aug. 28, 2025Air Plan Approval; Pennsylvania; Motor Vehicle Inspection and Maintenance Program Certification for Moderate Nonattainment Under the 2015 Ozone National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 28, 2025Air Plan Approval; Arkansas; Codification of the State Implementation Plan
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 28, 2025Air Plan Approval; Ohio; 2015 Ozone Moderate Reasonably Available Control Technology SIP
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 28, 2025Approval of the Clean Air Act, Section 112(l), Authority for Hazardous Air Pollutants; State of Connecticut Department of Energy and Environmental Protection; Approval of the Clean Air Act Section 502, State Operating Permit Programs, State of Connecticut Department of Energy and Environmental Protection
Proposed rule · Environmental Protection Agency · 40 CFR parts 63, 70 · Opens the Federal Register
- Aug. 26, 2025Air Plan Revisions; California; Heavy-Duty Vehicle Inspection and Maintenance Program
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 21, 2025Air Plan Approval; IA, Muscatine; 2010 1-Hour SO2 Maintenance Plan and Redesignation
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Aug. 21, 2025Air Plan Approval; Arizona; Maricopa County Air Quality Department; Petroleum Solvent Dry Cleaning
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 21, 2025Air Plan Approval; GA; Removal of Emissions Statements Requirement and Updates To Permit by Rule
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 21, 2025Air Plan Approval; Alabama; Standards for Granting Permits and Major New Source Review Permit Rules
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 19, 2025Air Plan Approval; Tennessee; Second Planning Period Regional Haze Plan
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 15, 2025Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards; Extension of Comment Period
Proposed rule · Environmental Protection Agency · 40 CFR parts 85, 86, 600 and 3 more · Opens the Federal Register
- Aug. 15, 2025Air Plan Approval; North Carolina; Removal of Emissions Exemptions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 14, 2025Air Plan Approval; Michigan; Detroit 2010 Sulfur Dioxide Redesignation and Maintenance Plan
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Aug. 14, 2025Air Plan Approval; Rhode Island; Decommissioning of Stage II Vapor Recovery Systems
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 14, 2025Air Plan Approval; North Carolina; Revisions to Regulations for Sulfur Dioxide Emissions From Combustion Sources
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 14, 2025Air Plan Approval; GA; Updates to the Cross-State Air Pollution Rule
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 8, 2025Fenoxaprop-Ethyl, Flufenpyr-Ethyl, Imazapyr, Maleic Hydrazide, Pyrazon, Quinclorac, Triflumizole, et al.; Tolerance and Tolerance Exemption Actions
Proposed rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Aug. 7, 2025Air Plan Approval; State of Kansas; Attainment Redesignation for the 2008 Lead NAAQS and Associated Maintenance Plan
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- Aug. 7, 2025Air Plan Approval; Colorado; Inspection and Maintenance Program Revision
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 7, 2025Air Plan Approval; Ohio; Carmeuse Lime, Inc. SO2
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Aug. 1, 2025Public Hearing for Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards
Proposed rule · Environmental Protection Agency · 40 CFR parts 85, 86, 600 and 3 more · Opens the Federal Register
- Aug. 1, 2025Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards
Proposed rule · Environmental Protection Agency · 40 CFR parts 85, 86, 600 and 3 more · Opens the Federal Register
- July 31, 2025Air Plan Approval; New Jersey; Northern New Jersey and Southern New Jersey Counties' Second 10-Year Limited Maintenance Plan for the 2006 24-Hour PM2.5 Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 31, 2025Air Plan Approval; South Carolina; Second Planning Period Regional Haze Plan
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 31, 2025Air Plan Approval; California; South Coast Air Quality Management District
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 28, 2025Air Plan Approval; Rhode Island; Amendments to Motor Vehicle Inspection and Maintenance Program
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 24, 2025Air Plan Approval; Texas; Reasonably Available Control Technology in the Houston-Galveston-Brazoria Ozone Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 24, 2025Air Plan Revisions; California; Mojave Desert Air Quality Management District; New Source Review; Stationary Source Permits
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 24, 2025Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth Ozone Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 24, 2025Air Plan Approval; New York; Ortho Clinical Diagnostics
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 24, 2025Air Plan Approval; Pennsylvania; Redesignation of the Beaver 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
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- July 24, 2025Air Plan Approval; Washington; Regional Haze State Implementation Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 22, 2025Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; CCR Management Unit Deadline Extension Rule
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- July 16, 2025Air Plan Approval; Connecticut; State Implementation Plan Revisions Required as a Result of a Definition Change Due to the Ozone Reclassification
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Plan Approval; Indiana; Regional Haze Plan for the Second Implementation Period; Extension of Comment Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Plan Approval; Minnesota; Exempt Source SIP Revision
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Plan Approval; Guam; Base Year Emissions Inventory for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard for the Piti-Cabras Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Plan Approval; State of Utah; Utah PM2.5 State Implementation Plan Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Determination of Attainment by the Attainment Date and Clean Data Determination; California, San Joaquin Valley 1997 Annual PM2.5 Fine Particulate Matter Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Quality State Implementation Plans; Approval and Promulgations: Montana: Infrastructure Requirements for the 2015 Ozone National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Plan Partial Approval and Partial Disapproval; Colorado; Regional Haze Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 16, 2025Air Plan Approval; Ohio; Second Maintenance Plan for the Ohio Portion of the Campbell-Clermont, KY-OH SO2 Maintenance Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 10, 2025National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma
Proposed rule · Environmental Protection Agency · 40 CFR parts 61, 63 · Opens the Federal Register
- July 10, 2025Finding of Failure To Attain the 1997 8-Hour Ozone Standards; California; San Joaquin Valley
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 10, 2025Air Plan Approval; California; Mojave Desert Air Quality Management District; Definition of Terms
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 7, 2025Air Plan Approval; Oklahoma; Revisions to Air Pollution Control Rules
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 7, 2025Air Plan Approval; Connecticut; 2014 and 2017 Periodic Emissions Inventory for 2008 8-Hour Ozone NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- July 7, 2025New Source Performance Standards; Delegation of Authority to Oklahoma
Proposed rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- July 7, 2025Establishment of Public Docket and Listening Sessions on Implementation Challenges Associated With Clean Water Act Section 401
Proposed rule · Environmental Protection Agency · 40 CFR part 121 · Opens the Federal Register
- July 3, 2025Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities (February-May 2025)
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- June 27, 2025Air Plan Approval; Missouri; Definitions and Common Reference Tables
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 62, 70 · Opens the Federal Register
- June 27, 2025Air Plan Approval; Missouri; Control of Sulfur Dioxide Emissions and Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 62 · Opens the Federal Register
- June 23, 2025New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Louisiana
Proposed rule · Environmental Protection Agency · 40 CFR parts 60, 61, 63 · Opens the Federal Register
- June 23, 2025Air Plan Approval; California; San Joaquin Valley 1-Hour Ozone Area; Maintenance Plan and Redesignation Request
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- June 20, 2025Air Plan Approval; California; Eastern Kern Air Pollution Control District; Stationary Combustion Turbines
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 20, 2025Finding of Failure To Attain for the Missouri Portion of the St. Louis Nonattainment Area for the 2015 Ozone National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register
- June 20, 2025Air Plan Approval; Guam; Clean Data Determination for the Piti-Cabras Nonattainment Area for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 18, 2025Air Plan Approval; Utah; Interstate Transport of Air Pollution for the 2008 8-Hour Ozone National Ambient Air Quality Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 18, 2025Air Plan Approval; Michigan; Second Period Regional Haze Plan
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 18, 2025Air Plan Approval; Indiana; Regional Haze Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 18, 2025Approval of Air Quality Implementation Plans; California; Regional Haze State Implementation Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 18, 2025Air Plan Approval; Colorado; Serious Attainment Plan RACT Requirements for the 2008 8-Hour Ozone National Ambient Air Quality Standards for the Denver Metro/North Front Range Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 18, 2025Air Quality Plans; Guam; Guam Environmental Protection Agency; New Source Review
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 18, 2025Finding of Failure To Attain; Air Plan Approval; Indiana; Huntington County Sulfur Dioxide Attainment Plan
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 18, 2025Air Plan Approval; Texas; Interstate Transport Requirements for the 2010 SO2 NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 17, 2025Texas Underground Injection Control (UIC) Program; Class VI Primacy
Proposed rule · Environmental Protection Agency · 40 CFR part 147 · Opens the Federal Register
- June 17, 2025Repeal of Greenhouse Gas Emissions Standards for Fossil Fuel-Fired Electric Generating Units
Proposed rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- June 17, 2025National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- June 17, 2025Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and Other Changes
Proposed rule · Environmental Protection Agency · 40 CFR parts 80, 1090 · Opens the Federal Register
- June 11, 2025Air Plan Approval; Delaware; Motor Vehicle Inspection and Maintenance Program Certification
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 11, 2025Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Revisions to Regulation for Control of Ozone Season Nitrogen Oxide Emissions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 11, 2025Air Plan Approval; West Virginia; 2024 Amendments to West Virginia's Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 9, 2025Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Hydrogen Cyanide, et al.
Proposed rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- June 4, 2025Air Plan Approval; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 3, 2025Air Plan Approval; New Jersey; Memorandum of Agreement To Address NOX SIP Call Requirements
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 3, 2025Determination of Attainment by the Attainment Date; California; Mariposa County; 2015 8-Hour Ozone National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- June 3, 2025National Priorities List; Addition of Exide Technologies-Vernon Site; Notification of Data Availability and Request for Comment
Proposed rule · Environmental Protection Agency · 40 CFR part 300 · Opens the Federal Register
- June 3, 2025Air Plan Approval; IA; Alter Metal Recycling Permit Modification
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 27, 2025Methylene Chloride; Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extensions
Proposed rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- May 23, 2025Air Plan Approval; Vermont; Regional Haze State Implementation Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 23, 2025Alabama: Final Authorization of State Hazardous Waste Management Program Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- May 23, 2025Mississippi: Final Authorization of State Hazardous Waste Management Program Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 271 · Opens the Federal Register
- May 23, 2025Air Plan Approval; Oregon; Lane Regional Air Protection Agency, Outdoor Burning
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 22, 2025Pesticide Tolerances; Implementing Registration Review Decisions for Certain Pesticides; Diphenylamine, et al
Proposed rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- May 19, 2025Arizona Underground Injection Control (UIC) Program; Class I-VI Primacy
Proposed rule · Environmental Protection Agency · 40 CFR part 147 · Opens the Federal Register
- May 19, 2025Air Plan Approval; Ohio; Second Maintenance Plan for 2008 Ozone NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 16, 2025North Dakota: Approval of State Coal Combustion Residuals Permit Program
Proposed rule · Environmental Protection Agency · 40 CFR part 257 · Opens the Federal Register
- May 15, 2025Hydrogen Fluoride; TSCA Section 21 Petition for Rulemaking Under TSCA Section 6; Reasons for Agency Response; Denial of Requested Rulemaking
Proposed rule · Environmental Protection Agency · Opens the Federal Register
- May 14, 2025Air Plan Approval; South Dakota; Regional Haze Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 8, 2025Air Plan Approval; Ohio; Nitrogen Oxide Budget Program
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 8, 2025Air Plan Approval; Colorado; Serious Attainment Plan Contingency Measures for the 2008 8-Hour Ozone National Ambient Air Quality Standards for the Denver Metro/North Front Range Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 8, 2025Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 8, 2025Approval and Promulgation of State Implementation Plans; New York; Emission Statement Certification of the 2008 and 2015 Ozone National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- May 8, 2025Air Plan Approval; Louisiana; Nonattainment Plan for the Evangeline Parish 2010 Sulfur Dioxide Primary National Ambient Air Quality Standard Nonattainment Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 29, 2025Air Plan Approval; Missouri; Removal of Obsolete Rules on Control of NOX Emissions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 24, 2025Air Plan Approval; Minnesota; Revision to Taconite Federal Implementation Plan
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 21, 2025Air Plan Approval; Indiana; Indiana NOX Emissions Monitoring
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 21, 2025Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and 5-Year Review; Closing of Comment Period
Proposed rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- April 9, 2025Air Plan Approval; Louisiana; Interstate Transport Requirements for the 2010 SO2 NAAQS
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 7, 2025Air Plan Approval; Connecticut; 2017 Base Year Emissions Inventory for the 2015 8-Hour Ozone National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- April 7, 2025Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-January 2025
Proposed rule · Environmental Protection Agency · 40 CFR parts 174, 180 · Opens the Federal Register
- April 7, 2025Air Plan Approval; Pennsylvania; Redesignation Request and Associated Maintenance Plan for the Liberty-Clairton Area for the 1997 Annual and 2006 24-Hour Fine Particulate Matter Standard and Maintenance Plan for the Allegheny County Area for the 2012 Annual Fine Particulate Matter Standard
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 81 · Opens the Federal Register
- April 4, 2025Significant New Use Rules on Certain Chemical Substances (24-4.5e)
Proposed rule · Environmental Protection Agency · 40 CFR part 721 · Opens the Federal Register
- April 2, 2025Air Plan Revision; California; Placer County Air Pollution Control District; New Source Review
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 31, 2025Air Plan Approval; California; State Implementation Plan Revision for Chico, Modesto, and Stockton Carbon Monoxide Maintenance Areas
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 31, 2025Section 610 Review of National Emission Standards for Hazardous Air Pollutants for Brick and Structural Clay Products Manufacturing and Clay Ceramics Manufacturing
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- March 28, 2025Air Plan Approval; Florida; Revisions to Stationary Sources-Removal of Clean Air Interstate Rule Provisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 26, 2025Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Source Review; Stationary Source Permits
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 25, 2025Review of New Source Performance Standards for Stationary Combustion Turbines and Stationary Gas Turbines; Reopening of Comment Period
Proposed rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- March 24, 2025Air Plan Approval; ID; Regional Haze Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 21, 2025Determination of Attainment by the Attainment Date; 2008 8-Hour Ozone Standards; California; Sacramento Metro Area
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 20, 2025National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review; Comment Period Extension
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- March 17, 2025Extension of the Attainment Date of the Coachella Valley Extreme Nonattainment Area Under the 1997 Ozone National Ambient Air Quality Standards
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- March 11, 2025Receipt of a Pesticide Petition Filed for Residues of Pesticide Chemicals in or on Various Commodities (December 2024)
Proposed rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- March 7, 2025Air Plan Approval; Alabama; Administrative Corrections and VOC Definition
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Feb. 26, 2025Review of National Emission Standards for Hazardous Air Pollutants for Polyether Polyols Production Industry; Extension of Comment Period
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Feb. 21, 2025Two Proposed Rules Published by the Environmental Protection Agency With Comment Periods That Close February 18, 2025, to February 20, 2025; Reopening of Comment Periods
Proposed rule · Environmental Protection Agency · 40 CFR parts 136, 372 · Opens the Federal Register
- Jan. 22, 2025National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review
Proposed rule · Environmental Protection Agency · 40 CFR part 63 · Opens the Federal Register
- Jan. 21, 2025Clean Water Act Methods Update Rule 22 for the Analysis of Contaminants in Effluent
Proposed rule · Environmental Protection Agency · 40 CFR part 136 · Opens the Federal Register
- Jan. 21, 2025Pesticides; Petition Seeking Rulemaking To Modify Labeling Requirements for Pesticides and Devices
Proposed rule · Environmental Protection Agency · 40 CFR part 156 · Opens the Federal Register
- Jan. 21, 2025Air Plan Partial Approval and Partial Disapproval; South Carolina; Minor Source Permit Program Revisions
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 21, 2025Air Plan Disapproval; West Virginia; Regional Haze State Implementation Plan for the Second Implementation Period
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 21, 2025Air Plan Revisions; California Air Plan Revisions; San Joaquin Valley Unified Air Pollution Control District; Stationary Source Permits
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 17, 2025Toxics Release Inventory (TRI); Clarification of Toxic Chemicals Due to Automatic Additions of Per- and Polyfluoroalkyl Substances Under the National Defense Authorization Act
Proposed rule · Environmental Protection Agency · 40 CFR part 372 · Opens the Federal Register
- Jan. 17, 2025Air Plan Revisions; Arizona; Arizona Department of Environmental Quality
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 17, 2025N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) and its transformation product, 6PPD-quinone; Regulatory Investigation under the Toxic Substances Control Act (TSCA); Extension of the Comment Period
Proposed rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- Jan. 16, 2025Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Legacy CCR Surface Impoundments; Correction
Proposed rule · Environmental Protection Agency · 40 CFR parts 9, 257 · Opens the Federal Register
- Jan. 15, 2025Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review
Proposed rule · Environmental Protection Agency · 40 CFR part 60 · Opens the Federal Register
- Jan. 15, 2025Air Plan Approval; Kansas; Annual Emission Inventory and Fees
Proposed rule · Environmental Protection Agency · 40 CFR parts 52, 70 · Opens the Federal Register
- Jan. 14, 2025C.I. Pigment Violet 29 (PV29); Regulation Under the Toxic Substances Control Act (TSCA)
Proposed rule · Environmental Protection Agency · 40 CFR part 751 · Opens the Federal Register
- Jan. 13, 2025Receipt of a Pesticide Petition Filed for Residues of Pesticide Chemicals in or on Various Commodities (November 2024)
Proposed rule · Environmental Protection Agency · 40 CFR part 180 · Opens the Federal Register
- Jan. 8, 2025Air Plan Approval; AK, Fairbanks North Star Borough; 2006 24-Hour PM2.5 Serious Area and 189(d) Plan
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 3, 2025Air Plan Approval; Ohio; Moderate Attainment Plan Elements for the Cleveland Area for the 2015 Ozone Standard
Proposed rule · Environmental Protection Agency · 40 CFR part 52 · Opens the Federal Register
- Jan. 3, 2025Air Quality Designations; KY; Redesignation of the Kentucky Portion of the Louisville, KY-IN 2015 8-Hour Ozone Nonattainment Area to Attainment
Proposed rule · Environmental Protection Agency · 40 CFR part 81 · Opens the Federal Register