New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State 2026-21383 | Environmental Protection Agency | Proposed rule | Oct 19 |
Air Quality Plan; Arizona; Agricultural Best Management Practices Rules for the West Pinal County PM10 Nonattainment Area 2026-21289 | Environmental Protection Agency | Proposed rule | Oct 19 |
Approval and Promulgation of Implementation Plans-Pinal County (Part); West Pinal, AZ PM10 Nonattainment Area; Moderate Area, Serious Area, and Section 189(d) Plan for Attainment of the 24-Hour PM10 Standard 2026-21288 | Environmental Protection Agency | Proposed rule | Oct 19 |
Air Quality Plan; Arizona; Pinal County Air Quality Control District; West Pinal County PM10 Nonattainment Area; Fugitive Dust Rules 2026-21287 | Environmental Protection Agency | Proposed rule | Oct 19 |
Approval and Promulgation of Implementation Plans; Arizona; Revisions to the Cleaner Burning Gasoline, Winter Oxygenated Fuel, and Gasoline Set-Aside Programs 2026-21268 | Environmental Protection Agency | Final rule | Oct 19 |
Renewable Fuel Standard (RFS) Program: Reallocation of Additional 2025 Small Refinery Exemptions 2026-21155 | Environmental Protection Agency | Proposed rule | Oct 16 |
Air Plan Approval; Michigan; Clean Data Determination for the Berrien, MI and Muskegon, MI Areas for the 2015 Ozone Standards 2026-20736 | Environmental Protection Agency | Final rule | Oct 9 |
Air Plan Approval; Kentucky; Louisville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS 2026-20641 | Environmental Protection Agency | Final rule | Oct 8 |
Air Plan Approval; Oklahoma; Interstate Transport Requirements for the 2010 SO2 NAAQS 2026-20640 | Environmental Protection Agency | Final rule | Oct 8 |
Approval and Promulgation of State Implementation Plans; New Jersey; RACT Certifications for the 2008 and 2015 Ozone National Ambient Air Quality Standards 2026-20638 | Environmental Protection Agency | Final rule | Oct 8 |
Air Plan Approval; GA; Removal of Nonattainment Area New Source Review 2026-20636 | Environmental Protection Agency | Final rule | Oct 8 |
Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors 2026-20635 | Environmental Protection Agency | Final rule | Oct 8 |
Air Plan Approval; Missouri; Construction Permit Exemptions 2026-20634 | Environmental Protection Agency | Final rule | Oct 8 |
Air Quality Plan; Arizona; Maricopa County Air Quality Department; New Source Review; Emission Reduction Credits-Rule 204 2026-20612 | Environmental Protection Agency | Proposed rule | Oct 8 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; West Virginia; Negative Declarations for Existing Large Municipal Waste Combustors and Other Solid Waste Incinerators 2026-20611 | Environmental Protection Agency | Proposed rule | Oct 7 |
Approval of Implementation Plans for Air Quality Planning Purposes; State of Nevada; Truckee Meadows Second 10-Year Maintenance Plan for the 1987 PM-10 Standard 2026-20102 | Environmental Protection Agency | Proposed rule | Oct 1 |
Air Plan Approval; OR; Lane County Title 36 Rule 2026-20101 | Environmental Protection Agency | Proposed rule | Oct 1 |
Attainment Date Extension for the South Coast, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area 2026-20097 | Environmental Protection Agency | Final rule | Oct 1 |
Air Plan Approval; Missouri; Control of NOX Emissions From Large Stationary Internal Combustion Engines 2026-20096 | Environmental Protection Agency | Final rule | Oct 1 |
Rescission of Title V Emergency Affirmative Defense Rule; Corrections 2026-19889 | Environmental Protection Agency | Final rule | Sep 29 |
National Emission Standards for Hazardous Air Pollutants for Gasoline Distribution Facilities and Standards of Performance for Bulk Gasoline Terminals Reconsideration 2026-19774 | Environmental Protection Agency | Proposed rule | Sep 28 |
Clarifying the Scope of “Applicable Requirements” Under State Operating Permit Programs and the Federal Operating Permit Program 2026-19671 | Environmental Protection Agency | Final rule | Sep 25 |
Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS 2026-19668 | Environmental Protection Agency | Final rule | Sep 25 |
Air Plan Approval; Alabama; Transportation Conformity 2026-19566 | Environmental Protection Agency | Final rule | Sep 24 |
Air Plan Approval; North Carolina; Charlotte-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS 2026-19495 | Environmental Protection Agency | Proposed rule | Sep 23 |
Partial Repeal of the Carbon Pollution Standards for Fossil Fuel-Fired Electric Generating Units 2026-19071 · significant | Environmental Protection Agency | Final rule | Sep 17 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; District of Columbia; Negative Declaration for Existing Other Solid Waste Incinerators 2026-18759 | Environmental Protection Agency | Proposed rule | Sep 14 |
Clean Data Determination; 1997 8-Hour Ozone Standards; California; Sacramento Metro Area 2026-18755 | Environmental Protection Agency | Proposed rule | Sep 14 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Maryland; Negative Declaration for Existing Other Solid Waste Incinerators 2026-18750 | Environmental Protection Agency | Proposed rule | Sep 14 |
Approval and Promulgation of Implementation Plans; California; San Joaquin Valley, Revisions to Motor Vehicle Emissions Budgets for Ozone 2026-18748 | Environmental Protection Agency | Final rule | Sep 14 |
Air Plan Approvals; Indiana; Prong 4 (Visibility) for the 2015 Ozone National Ambient Air Quality Standard 2026-18334 | Environmental Protection Agency | Final rule | Sep 9 |
Air Plan Approval; New York; Interstate Transport Requirements for the 2010 SO2 NAAQS 2026-18324 | Environmental Protection Agency | Final rule | Sep 9 |
Air Plan Approval; Reconsideration and Repeal of Air Plan Partial Approval and Partial Disapproval of North Dakota's Regional Haze State Implementation Plan for the Second Implementation Period 2026-18290 | Environmental Protection Agency | Proposed rule | Sep 9 |
Renewable Fuel Standard (RFS) Program: Extension of 2025 Compliance Reporting Deadline 2026-18132 | Environmental Protection Agency | Final rule | Sep 4 |
Air Plan Approval; Mississippi; 2010 1-Hour SO2 NAAQS Transport Infrastructure 2026-17503 | Environmental Protection Agency | Proposed rule | Aug 27 |
Air Plan Approval; Kentucky; Cincinnati-Hamilton Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS 2026-17502 | Environmental Protection Agency | Proposed rule | Aug 27 |
Air Plan Approval; Kentucky; Louisville Area Limited Maintenance Plan for the 1997 8-Hour Ozone NAAQS 2026-17501 | Environmental Protection Agency | Proposed rule | Aug 27 |
Air Plan Approval; Oklahoma; Regional Haze Plan for the First Implementation Revision; Revision to State Implementation Plan and Requirements 2026-17499 | Environmental Protection Agency | Proposed rule | Aug 27 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Allegheny County; Negative Declaration for Existing Large Municipal Waste Combustors 2026-17497 | Environmental Protection Agency | Proposed rule | Aug 27 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Puerto Rico; Negative Declaration for the Oil and Gas Industry 2026-17495 | Environmental Protection Agency | Proposed rule | Aug 27 |
Air Plan Approval; Arkansas; Regional Haze State Implementation Plan for the Second Implementation Period 2026-17494 | Environmental Protection Agency | Final rule | Aug 27 |
Air Plan Approval; FL; Emissions Reporting Requirements and Permitting Forms 2026-17490 | Environmental Protection Agency | Final rule | Aug 27 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; City of Philadelphia; Negative Declarations for Existing Commercial and Industrial Solid Waste Incinerators, Large Municipal Waste Incinerators, Small Municipal Waste Incinerators, and Other Solid Waste Incinerators 2026-17488 | Environmental Protection Agency | Proposed rule | Aug 27 |
Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology 2026-17486 | Environmental Protection Agency | Final rule | Aug 27 |
Proposed Deletion From the National Priorities List 2026-16994 | Environmental Protection Agency | Proposed rule | Aug 20 |
Air Plan Approval; SC; Department Name Change 2026-16990 | Environmental Protection Agency | Final rule | Aug 20 |
Air Plan Approval; Arizona; Attainment Plan for the Hayden SO2 Nonattainment Area for the 1971 and 2010 Sulfur Dioxide National Ambient Air Quality Standards 2026-16989 | Environmental Protection Agency | Final rule | Aug 20 |
Deletion From the National Priorities List 2026-16988 | Environmental Protection Agency | Final rule | Aug 20 |
Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas 2026-16986 | Environmental Protection Agency | Final rule | Aug 20 |
Air Plan Approval; South Carolina; Minor Source Permit Program Revisions 2026-16937 | Environmental Protection Agency | Proposed rule | Aug 19 |
Air Plan Partial Approval and Partial Conditional Approval; South Carolina; Control of Oxides of Nitrogen and Source Testing Requirements 2026-16932 | Environmental Protection Agency | Proposed rule | Aug 19 |
Air Plan Approval; South Carolina; Minor Source Permit Program Revisions 2026-16930 | Environmental Protection Agency | Proposed rule | Aug 19 |
Approval of Source-Specific Air Quality Implementation Plan; New York; Big Six Towers Inc. 2026-16627 | Environmental Protection Agency | Final rule | Aug 14 |
Air Plan Approval; Virginia; 1997 8-Hour Ozone National Ambient Air Quality Standard Second Maintenance Plan for the Madison and Page Counties (Shenandoah National Park) Area 2026-16575 | Environmental Protection Agency | Proposed rule | Aug 14 |
Air Plan Approval; Missouri; Moderate Attainment Plan Elements for the 2015 8-Hour Ozone Standard for the Missouri Portion of the St. Louis Nonattainment Area 2026-16571 | Environmental Protection Agency | Proposed rule | Aug 14 |
Air Plan Approval; Iowa; Interstate Transport Requirements for the 2010 Sulfur Dioxide Standard 2026-16570 | Environmental Protection Agency | Proposed rule | Aug 14 |
Air Plan Approval; Commonwealth of Virginia; Transfer of Authority and Requests for Certain Public Hearings on Air Permits 2026-16564 | Environmental Protection Agency | Proposed rule | Aug 13 |
Air Plan Approval; Missouri; Clean Data Determination for the 2015 8-Hour Ozone Standard for the Missouri Portion of the St. Louis Nonattainment Area 2026-16515 | Environmental Protection Agency | Final rule | Aug 13 |
Air Plan Approval; Illinois; Clean Data Determination for the Illinois Portion of the St. Louis Area for the 2015 Ozone Standard 2026-16514 | Environmental Protection Agency | Final rule | Aug 13 |
Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley 2026-16511 | Environmental Protection Agency | Final rule | Aug 13 |
Determination of Attainment by the Attainment Date and Clean Data Determination for the 2012 Annual Fine Particulate Standard; Plumas County, California 2026-16510 | Environmental Protection Agency | Final rule | Aug 13 |
Air Quality Plan; Arizona; Maricopa County Air Quality Department; Gasoline Loading 2026-16335 | Environmental Protection Agency | Proposed rule | Aug 11 |
Determination To Defer Sanctions; Arizona; Maricopa County Air Quality Department; Gasoline Loading 2026-16334 | Environmental Protection Agency | Final rule | Aug 11 |
Response to Clean Air Act Section 176A Petition From New Hampshire 2026-16331 | Environmental Protection Agency | Proposed rule | Aug 11 |
Air Plan Approval; New Hampshire; Repeal of Motor Vehicle Inspection and Maintenance Program 2026-16330 | Environmental Protection Agency | Proposed rule | Aug 11 |
Partial Approval and Partial Disapproval of Air Quality State Implementation Plans; Arizona; Prevention of Significant Deterioration Infrastructure Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standard 2026-16083 | Environmental Protection Agency | Proposed rule | Aug 6 |
Air Plan Approval; Illinois; 2015 Ozone Moderate and Serious Reasonably Available Control Technology Update 2026-16001 | Environmental Protection Agency | Proposed rule | Aug 6 |
Air Plan Approval; Connecticut; Plan for Inclusion of a Consent Order No. 8383-Algonquin Gas Transmission, LLC and Negative Declaration for Rubber Tire Manufacturing Sources 2026-15986 | Environmental Protection Agency | Final rule | Aug 6 |
Air Plan Approval; Rhode Island; Update to Materials Incorporated by Reference 2026-15493 | Environmental Protection Agency | Final rule | Jul 31 |
Air Plan Approval; California; San Joaquin Valley Air Pollution Control District 2026-15377 | Environmental Protection Agency | Final rule | Jul 30 |
Air Plan Approval; Pennsylvania; Redesignation of the Warren County Nonattainment Area to Attainment and Approval of the Area's Maintenance Plan for the 2010 1-Hour Primary Sulfur Dioxide National Ambient Air Quality Standard 2026-15372 | Environmental Protection Agency | Proposed rule | Jul 30 |
Air Plan Approval; Missouri; Construction Permit Exemptions 2026-15371 | Environmental Protection Agency | Proposed rule | Jul 30 |
Operating Permit Program Approval; New Hampshire; Revised Definitions 2026-15363 | Environmental Protection Agency | Final rule | Jul 30 |
Clean Air Act Operating Permit Program Revisions; California; Amador County Air Pollution Control District, Calaveras County Air Pollution Control District, Great Basin Unified Air Pollution Control District, Northern Sierra Air Quality Management District 2026-15362 | Environmental Protection Agency | Proposed rule | Jul 30 |
Air Plan Approval; Michigan; Redesignation of the Detroit, MI Area to Attainment of the 2015 Ozone Standards 2026-15168 | Environmental Protection Agency | Proposed rule | Jul 28 |
Air Plan Approval; Michigan; Redesignation of the Berrien, MI and Muskegon, MI Areas to Attainment of the 2015 Ozone Standards 2026-15167 | Environmental Protection Agency | Proposed rule | Jul 28 |
Approval and Promulgation of State Implementation Plans; New Jersey; RACT Certifications for the 2008 and 2015 Ozone National Ambient Air Quality Standards 2026-14923 | Environmental Protection Agency | Proposed rule | Jul 23 |
Air Plan Approval; Pennsylvania; Harrisburg-Lebanon-Carlisle-York Maintenance Area, Second 10-Year Maintenance Plan for the 2006 Fine Particulate Matter National Ambient Air Quality Standard 2026-14902 | Environmental Protection Agency | Proposed rule | Jul 23 |
Air Plan Approval; Pennsylvania; Revision to Source-Specific Reasonably Available Control Technology (RACT) Requirements 2026-14891 | Environmental Protection Agency | Proposed rule | Jul 23 |
Air Plan Approval; Maine; Chapter 140: Part 70 Air Emission License Regulation 2026-14885 | Environmental Protection Agency | Final rule | Jul 23 |
Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer 2026-14880 | Environmental Protection Agency | Final rule | Jul 23 |
New Source Performance Standards Review for Stationary Combustion Turbines and Stationary Gas Turbines; Correction 2026-14371 | Environmental Protection Agency | Final rule | Jul 16 |
Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants; Nebraska; Commercial and Industrial Solid Waste Incineration Units 2026-14330 | Environmental Protection Agency | Final rule | Jul 16 |
Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants; Nebraska; Commercial and Industrial Solid Waste Incineration Units 2026-14329 | Environmental Protection Agency | Proposed rule | Jul 16 |
Air Plan Approval; Pennsylvania; Interim Final Determination To Stay and Defer Sanctions Related to Reasonably Available Control Technology Requirements (RACT) for Volatile Organic Compounds (VOC) Control Technique Guidelines (CTG) Under the 2008 Ozone National Ambient Air Quality Standards (NAAQS) 2026-14326 | Environmental Protection Agency | Final rule | Jul 16 |
Air Plan Approval; Pennsylvania; Reasonably Available Control Technology (RACT) for Volatile Organic Compounds (VOC) Control Technique Guidelines (CTG) Under the 2008 and 2015 Ozone National Ambient Air Quality Standards (NAAQS) 2026-14325 | Environmental Protection Agency | Proposed rule | Jul 16 |
Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations 2026-14322 | Environmental Protection Agency | Final rule | Jul 16 |
Air Plan Approval and Air Quality Designation; Ohio; Attainment Plan and Redesignation of the Canton Area to Attainment of the 2008 Lead Standard 2026-14318 | Environmental Protection Agency | Final rule | Jul 16 |
Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Source Review; Stationary Source Permits 2026-14317 | Environmental Protection Agency | Final rule | Jul 16 |
Air Plan Approval; Wisconsin; Source-Specific Air Quality Implementation Plan; Oak Creek Power Plant 2026-14282 | Environmental Protection Agency | Proposed rule | Jul 15 |
Approval of Source-Specific Air Quality Implementation Plan; New York; Castleton Power, LLC 2026-14261 | Environmental Protection Agency | Proposed rule | Jul 15 |
Air Plan Approval; Missouri; Control of NOX Emissions From Large Stationary Internal Combustion Engines 2026-14260 | Environmental Protection Agency | Proposed rule | Jul 15 |
Amendments and Nonconformance Penalties for Model Year 2027 and Later Heavy-Duty Highway Engines and Amendments to Inducement Provisions for SCR-Equipped Diesel Engines 2026-14112 | Environmental Protection Agency | Proposed rule | Jul 14 |
Approval and Promulgation of Implementation Plans; California; San Joaquin Valley; Revisions to Motor Vehicle Emissions Budgets for Ozone 2026-13845 | Environmental Protection Agency | Proposed rule | Jul 9 |
Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment Area 2026-13843 | Environmental Protection Agency | Final rule | Jul 9 |
Minor New Source Review Program Air Permitting Public Participation Requirements for State Implementation Plans 2026-13667 · significant | Environmental Protection Agency | Proposed rule | Jul 7 |
National Emission Standards for Hazardous Air Pollutants: Plywood and Composite Wood Products 2026-13550 | Environmental Protection Agency | Final rule | Jul 6 |
Air Plan Approval; Alabama; Transportation Conformity 2026-13403 | Environmental Protection Agency | Proposed rule | Jul 2 |
Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP Provisions 2026-13398 | Environmental Protection Agency | Final rule | Jul 2 |
Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment Area 2026-13396 | Environmental Protection Agency | Final rule | Jul 2 |
Air Plan Approval; Ohio; Redesignation of the Cleveland, OH Area to Attainment of the 2015 Ozone Standard 2026-13027 | Environmental Protection Agency | Final rule | Jun 29 |
Air Quality Plan; California; Mojave Desert Air Quality Management District; Rescissions of Outdated Requirements Within Riverside County 2026-12935 | Environmental Protection Agency | Proposed rule | Jun 26 |
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT and SIP Strengthening for Ohio 2026-12921 | Environmental Protection Agency | Final rule | Jun 26 |
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT 2026-12920 | Environmental Protection Agency | Final rule | Jun 26 |
Air Plan Approval; District of Columbia; Creation of Synthetic Minor Permit Program 2026-12898 | Environmental Protection Agency | Final rule | Jun 26 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Oklahoma; Control of Emissions From Existing Other Solid Waste Incineration Units, Hospital/Medical/Infectious Waste Incinerator Units, and Commercial and Industrial Solid Waste Incineration Units 2026-12896 | Environmental Protection Agency | Final rule | Jun 26 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Louisiana; Control of Emissions From Existing Other Solid Waste Incineration Units 2026-12895 | Environmental Protection Agency | Final rule | Jun 26 |
Approval and Promulgation of Implementation Plans; Arizona; Revisions to the Cleaner Burning Gasoline, Winter Oxygenated Fuel, and Gasoline Set-Aside Programs 2026-12551 | Environmental Protection Agency | Proposed rule | Jun 23 |
Air Plan Approval; Colorado; RACT Requirements for the 2008 8-Hour Ozone Standard for the Denver Metro/North Front Range Nonattainment Area 2026-12543 | Environmental Protection Agency | Proposed rule | Jun 23 |
Congressional Review Act Revocation of 2024 Amendments to the National Emission Standards for Hazardous Air Pollutants: Rubber Tire Manufacturing 2026-12424 | Environmental Protection Agency | Final rule | Jun 22 |
Air Plan Approval; OR; Update to Materials Incorporated by Reference 2026-12415 | Environmental Protection Agency | Final rule | Jun 22 |
Partial Withdrawals of Findings of Failure To Submit State Implementation Plan (SIP) Revisions To Amend Provisions Applying to Excess Emissions During Periods of Startup, Shutdown, and Malfunction 2026-11884 | Environmental Protection Agency | Final rule | Jun 12 |
Ozone Reclassification State Implementation Plan Rule 2026-11843 | Environmental Protection Agency | Proposed rule | Jun 12 |
Attainment Date Extension for the South Coast, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area 2026-11736 | Environmental Protection Agency | Proposed rule | Jun 11 |
Attainment Date Extension for the San Joaquin Valley, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area 2026-11735 | Environmental Protection Agency | Proposed rule | Jun 11 |
Air Plan Approval; New York; New York Metropolitan Area Second Ten-Year Limited Maintenance Plan for the 2006 24-Hour PM2.5 Standard 2026-11732 | Environmental Protection Agency | Final rule | Jun 11 |
Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction 2026-11731 | Environmental Protection Agency | Final rule | Jun 11 |
Air Plan Approval; Connecticut; Ozone Ambient Air Quality Standard and Adhesive and Sealants Regulation Revisions 2026-11728 | Environmental Protection Agency | Final rule | Jun 11 |
Approval and Promulgation of Air Quality Implementation Plans; Wyoming; Regional Haze Federal Implementation Plan 2026-11436 | Environmental Protection Agency | Proposed rule | Jun 8 |
Air Plan Approval; Minnesota; Revision to Taconite Federal Implementation Plan 2026-11432 | Environmental Protection Agency | Final rule | Jun 8 |
Clean Air Act Title V Operating Permit Program Revision; District of Columbia 2026-11170 | Environmental Protection Agency | Final rule | Jun 4 |
Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE 2026-11169 | Environmental Protection Agency | Final rule | Jun 4 |
Conditional Approval; Contingency Measure State Implementation Plan for the 2008 Ozone Standards; San Joaquin Valley, California 2026-11168 | Environmental Protection Agency | Final rule | Jun 4 |
National Emission Standards for Hazardous Air Pollutants From Hazardous Waste Combustors: Residual Risk and Technology Review 2026-11047 · significant | Environmental Protection Agency | Final rule | Jun 3 |
Rescission of Title V Emergency Affirmative Defense Rule 2026-10875 | Environmental Protection Agency | Final rule | Jun 1 |
Air Plan Approval; Indiana; Keystone VOC RACT Alternative Control 2026-10776 | Environmental Protection Agency | Final rule | May 29 |
Air Plan Approval; Pennsylvania; Revision to Philadelphia Gas Works, Richmond Plant Reasonably Available Control Technology Plan Under the 1997 8-Hour Ozone National Ambient Air Quality Standards 2026-10771 | Environmental Protection Agency | Final rule | May 29 |
Approval of Source-Specific Air Quality Implementation Plan; New York; Calpine JFK Energy Center 2026-10770 | Environmental Protection Agency | Final rule | May 29 |
Air Plan Approval; New York; Athens Generating Plant 2026-10769 | Environmental Protection Agency | Final rule | May 29 |
Designation of Areas for Air Quality Planning Purposes; Michigan; Technical Amendment 2026-10768 | Environmental Protection Agency | Final rule | May 29 |
Air Plan Approval; Michigan; Determination of Attainment by the Attainment Date for the 2015 Ozone Standards 2026-10767 | Environmental Protection Agency | Proposed rule | May 29 |
Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District; Ventura County Air Pollution Control District; South Coast Air Quality Management District; Oil and Gas Production; Volatile Organic Compounds 2026-10760 | Environmental Protection Agency | Final rule | May 29 |
Air Plan Approval; Maryland; Clean Data Determination for the Baltimore, MD Nonattainment Area for the 2015 Ozone National Ambient Air Quality Standards 2026-10755 | Environmental Protection Agency | Final rule | May 29 |
Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regional Haze State Implementation Plan for the Second Implementation Period 2026-10754 | Environmental Protection Agency | Final rule | May 29 |
Air Plan Approval; Virginia; Repeal of Existing Stationary Source Regulations 2026-10745 | Environmental Protection Agency | Final rule | May 29 |
South Carolina; Approval of State Plan for Control of Emissions From Commercial and Industrial Solid Waste Incineration Units 2026-10744 | Environmental Protection Agency | Final rule | May 29 |
Approval and Promulgation of State Air Quality Plans (Negative Declarations) for Designated Facilities and Pollutants; District of Columbia 2026-10739 | Environmental Protection Agency | Final rule | May 29 |
Air Plan Approval; ID; Update to Materials Incorporated by Reference 2026-10738 | Environmental Protection Agency | Final rule | May 29 |
Air Plan Approval; Ohio; Removal of Air Nuisance Rule 2026-10643 | Environmental Protection Agency | Proposed rule | May 28 |
Approval of Source-Specific Air Quality Implementation Plan; New York; Big Six Towers Inc. 2026-10642 | Environmental Protection Agency | Proposed rule | May 28 |
Air Plan Approval; SC; Department Name Change 2026-10640 | Environmental Protection Agency | Proposed rule | May 28 |
Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors; Extension of Comment Period 2026-10638 | Environmental Protection Agency | Proposed rule | May 28 |
Phasedown of Hydrofluorocarbons: Excluding Road and Intermodal Container Transport Refrigeration Units From the Hydrofluorocarbon Leak Repair Requirements 2026-10388 | Environmental Protection Agency | Proposed rule | May 26 |
Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Promulgated Under the Technology Transitions Provisions of the American Innovation and Manufacturing Act of 2020 2026-10387 · significant | Environmental Protection Agency | Final rule | May 26 |
Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Gila County Reasonably Available Control Technology 2026-10280 | Environmental Protection Agency | Final rule | May 22 |
Air Plan Approval; FL; Emissions Reporting Requirements and Permitting Forms 2026-10207 | Environmental Protection Agency | Proposed rule | May 21 |
Revision of Tier 4 Criteria Pollutant Standards, Part 1: Amendments to Phase-In Schedule for Light-Duty and Medium-Duty Vehicles 2026-09905 | Environmental Protection Agency | Proposed rule | May 18 |
Air Plan Approval; Montana; Revisions to Western Sugar Stipulation 2026-09619 | Environmental Protection Agency | Final rule | May 14 |
Air Plan Approval; Minnesota; Metropolitan Council Wastewater Treatment Plant Title I PM10 SIP Revisions 2026-09618 | Environmental Protection Agency | Final rule | May 14 |
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements 2026-09616 | Environmental Protection Agency | Final rule | May 14 |
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Washington; Northwest Clean Air Agency 2026-09615 | Environmental Protection Agency | Final rule | May 14 |
Air Plan Approval; Ohio; Clean Data Determination for the Cleveland, Ohio Area for the 2015 Ozone Standard 2026-09614 | Environmental Protection Agency | Final rule | May 14 |
Air Plan Approval; Illinois; Moderate Attainment Plan Elements for the Chicago and Metro East Areas for the 2015 Ozone Standard 2026-09613 | Environmental Protection Agency | Final rule | May 14 |
Air Plan Approval; Indiana; Indiana NOX Emissions Monitoring 2026-09612 | Environmental Protection Agency | Final rule | May 14 |
Determination of Attainment by the Attainment Date and Clean Data Determination for the 2012 Annual Fine Particulate Standard; Plumas County, California 2026-09604 | Environmental Protection Agency | Proposed rule | May 14 |
Begin Actual Construction in the New Source Review (NSR) Preconstruction Permitting Program 2026-09524 · significant | Environmental Protection Agency | Proposed rule | May 13 |
Air Plan Approval; NC; Removal of the State's Vehicle Inspection and Maintenance Program 2026-09146 | Environmental Protection Agency | Proposed rule | May 8 |
Air Quality Plan; California; San Diego County Air Pollution Control District; Landfill Flares 2026-09055 | Environmental Protection Agency | Proposed rule | May 7 |
Air Plan Approval; Missouri; Attainment Plan for the New Madrid Nonattainment Area for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard 2026-09054 | Environmental Protection Agency | Proposed rule | May 7 |
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Allegheny County; Delegation of Authority of the Federal Plan for Existing Sewage Sludge Incineration Units 2026-09043 | Environmental Protection Agency | Final rule | May 7 |
Air Plan Approval; Delaware; Excess Emissions Provisions Pertaining to Periods of Startup, Shutdown and Malfunction Events 2026-08373 | Environmental Protection Agency | Proposed rule | Apr 30 |
Utah; Northern Wasatch Front; 2015 8-Hour Ozone National Ambient Air Quality Standards; Reconsideration and Repeal of Finding of Failure To Attain and Reclassification to a Serious Nonattainment Area; Determination of Attainment by the Moderate Attainment Date But for International Emissions 2026-08372 | Environmental Protection Agency | Proposed rule | Apr 30 |
Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors 2026-08364 | Environmental Protection Agency | Proposed rule | Apr 29 |
Approval of Missouri's Request for Partial Program Delegation of Clean Air Act 112(r) Prevention of Accidental Release Program 2026-08348 | Environmental Protection Agency | Final rule | Apr 29 |
Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer 2026-07906 | Environmental Protection Agency | Proposed rule | Apr 23 |
Utah; Uinta Basin; 2015 8-Hour Ozone National Ambient Air Quality Standard; Reconsideration and Repeal of Finding of Failure To Attain and Reclassification to a Moderate Nonattainment Area; Extension of the Attainment Date and Determination of Attainment by the Marginal Attainment Date 2026-07904 | Environmental Protection Agency | Proposed rule | Apr 23 |
Kentucky; Approval and Promulgation of State Plan for Designated Facilities and Pollutants; Control of Emissions From Existing Municipal Solid Waste Landfills 2026-07894 | Environmental Protection Agency | Proposed rule | Apr 23 |
Finding of Failure To Attain and Reclassification of Tribal Portions of the Greater Connecticut Ozone Nonattainment Area as Serious for the 2015 Ozone National Ambient Air Quality Standards 2026-07889 | Environmental Protection Agency | Final rule | Apr 23 |
Air Plan Approval; Virginia; Revision to the Regulatory Definition of Volatile Organic Compound 2026-07885 | Environmental Protection Agency | Final rule | Apr 23 |
Air Plan Approval; Missouri; Construction Permits Required 2026-07884 | Environmental Protection Agency | Final rule | Apr 23 |
National Emission Standards for Hazardous Air Pollutants: Crude Oil and Natural Gas Production Facilities and Natural Gas Transmission and Storage Facilities; Technology Review and Reconsideration 2026-07800 | Environmental Protection Agency | Proposed rule | Apr 22 |
Air Plan Approval; Virginia; Amendment to the State Operating Permit for GP Big Island, LLC 2026-07527 | Environmental Protection Agency | Final rule | Apr 17 |
Air Plan Revisions; Arizona; Maricopa County Air Quality Department; New Source Review; Emission Reduction Credits 2026-07405 | Environmental Protection Agency | Proposed rule | Apr 16 |
Air Plan Approval; Arizona; Interstate Transport Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standards 2026-07400 | Environmental Protection Agency | Final rule | Apr 16 |
Air Plan Approval; Pennsylvania; Redesignation Request for the Allegheny County Area for the 2012 Annual Fine Particulate Matter Standard 2026-07399 | Environmental Protection Agency | Final rule | Apr 16 |
Air Plan Approval; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns 2026-07398 | Environmental Protection Agency | Final rule | Apr 16 |
Air Plan Approval; Ohio; Redesignation of the Cleveland, OH Area to Attainment of the 2015 Ozone Standards 2026-06943 | Environmental Protection Agency | Proposed rule | Apr 10 |
Air Plan Approvals; Indiana; Prong 4 (Visibility) for the 2015 Ozone National Ambient Air Quality Standard 2026-06942 | Environmental Protection Agency | Proposed rule | Apr 10 |
Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment Area 2026-06941 | Environmental Protection Agency | Proposed rule | Apr 10 |
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT for Ohio 2026-06940 | Environmental Protection Agency | Proposed rule | Apr 10 |
Air Plan Approval; New York; Interstate Transport Requirements for the 2010 SO2 NAAQS 2026-06938 | Environmental Protection Agency | Proposed rule | Apr 10 |
Air Plan Approval and Air Quality Designation; Ohio; Attainment Plan and Redesignation of the Canton Area to Attainment of the 2008 Lead Standard 2026-06937 | Environmental Protection Agency | Proposed rule | Apr 10 |
Air Plan Approval; Rhode Island; Regional Haze State Implementation Plan for the Second Implementation Period; Prong 4 (Visibility) for the 2015 8-Hour Ozone National Ambient Air Quality Standard 2026-06838 | Environmental Protection Agency | Final rule | Apr 9 |
Air Plan Approval; Colorado; Serious Attainment Plan Contingency Measures and RACT Requirements for the 2008 8-Hour Ozone National Ambient Air Quality Standards for the Denver Metro/North Front Range Nonattainment Area 2026-06837 | Environmental Protection Agency | Final rule | Apr 9 |
Air Plan Approval; Missouri; Revisions to Existing Rule 10 CSR 10-5.570; Control of Sulfur Emissions From Stationary Boilers 2026-06832 | Environmental Protection Agency | Final rule | Apr 9 |
Air Plan Approval; Missouri; Revisions to Existing Rule 10 CSR 10-5.570; Control of Sulfur Emissions From Stationary Boilers 2026-06831 | Environmental Protection Agency | Proposed rule | Apr 9 |
Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review 2026-06808 · significant | Environmental Protection Agency | Final rule | Apr 9 |
Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program in Refrigeration and Air Conditioning and Fire Suppression; Supplemental Notice of Proposed Rulemaking 2026-06665 | Environmental Protection Agency | Proposed rule | Apr 6 |
Clean Air Act Operating Permit Program Revision; California; Monterey Bay Air Resources District 2026-06443 | Environmental Protection Agency | Proposed rule | Apr 2 |
Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas 2026-06442 | Environmental Protection Agency | Proposed rule | Apr 2 |
Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction 2026-06441 | Environmental Protection Agency | Proposed rule | Apr 2 |
Air Plan Approval; Ohio; Ohio Permit Rules Revisions 2026-06398 | Environmental Protection Agency | Final rule | Apr 2 |
Air Plan Approval; Ohio; Muskingum River 2010 Sulfur Dioxide Redesignation and Maintenance Plan 2026-06397 | Environmental Protection Agency | Final rule | Apr 2 |
Air Plan Approval; Michigan; Detroit 2010 Sulfur Dioxide Redesignation and Maintenance Plan 2026-06396 | Environmental Protection Agency | Final rule | Apr 2 |
Air Plan Approval; Oregon; 2024 Vehicle Inspection Program Updates 2026-06388 | Environmental Protection Agency | Final rule | Apr 2 |
Air Quality Plan; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements; Correction 2026-06386 | Environmental Protection Agency | Final rule | Apr 2 |
Air Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision 2026-06384 | Environmental Protection Agency | Final rule | Apr 2 |
Commerce Acquisition Regulation; Minor Amendments 2026-06382 | Commerce Department | Final rule | Apr 2 |
National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review 2026-06304 | Environmental Protection Agency | Final rule | Apr 1 |
Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and Other Changes 2026-06275 · significant | Environmental Protection Agency | Final rule | Apr 1 |
Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations 2026-05875 | Environmental Protection Agency | Proposed rule | Mar 26 |
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Washington; Southwest Clean Air Agency 2026-05712 | Environmental Protection Agency | Final rule | Mar 24 |
Approval and Promulgation of State Plans for Designated Facilities and Pollutants; West Virginia; Control of Emissions From Existing Municipal Solid Waste Landfills 2026-05637 | Environmental Protection Agency | Proposed rule | Mar 23 |
Air Plan Revisions; California; Antelope Valley Air Quality Management District; New Source Review; Stationary Source Permits 2026-05636 | Environmental Protection Agency | Proposed rule | Mar 23 |
Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth Ozone Nonattainment Area 2026-05607 | Environmental Protection Agency | Final rule | Mar 23 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Louisiana; Control of Emissions From Existing Other Solid Waste Incineration Units 2026-05606 | Environmental Protection Agency | Proposed rule | Mar 23 |
Determination of Attainment by the Attainment Date But for International Emissions for the 2015 Ozone National Ambient Air Quality Standards; Phoenix-Mesa Nonattainment Area, Arizona 2026-05601 | Environmental Protection Agency | Final rule | Mar 23 |
Air Plan Approval; Texas; Reasonably Available Control Technology in the Houston-Galveston-Brazoria Ozone Nonattainment Area 2026-05596 | Environmental Protection Agency | Final rule | Mar 23 |
Approval of Clean Air Plans; San Joaquin Valley, California; Contingency Measures for 1997 Ozone Standards 2026-05592 | Environmental Protection Agency | Final rule | Mar 23 |
Air Plan Revisions; California; Mojave Desert Air Quality Management District; New Source Review; Stationary Source Permits 2026-05591 | Environmental Protection Agency | Final rule | Mar 23 |
Protecting Public Health and Unleashing American Energy by Facilitating Scrap Tire Pile Cleanups 2026-05586 | Environmental Protection Agency | Proposed rule | Mar 23 |
Air Plan Approval; Ohio; Volatile Organic Compounds RFD Beaufort 2026-05568 | Environmental Protection Agency | Final rule | Mar 23 |
Air Plan Approval; New Hampshire; Single Source VOC RACT Order for Hutchinson Sealing Systems 2026-05567 | Environmental Protection Agency | Final rule | Mar 23 |
Commercial and Industrial Solid Waste Incineration Units: Temporary-Use Incinerators and Air Curtain Incinerators Used in Disaster Recovery; Rescission of Interim Final Rule 2026-05395 | Environmental Protection Agency | Final rule | Mar 19 |
National Emission Standards for Hazardous Air Pollutants: Polyether Polyols Production Industry Review 2026-05261 | Environmental Protection Agency | Final rule | Mar 18 |
National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review Reconsideration 2026-05167 · significant | Environmental Protection Agency | Proposed rule | Mar 17 |
Air Plan Approval; Connecticut; Revision to the State Implementation Plan for Inclusion of Consent Order No. 8383-Algonquin Gas Transmission, LLC and Negative Declaration for Rubber Tire Manufacturing Sources 2026-04991 | Environmental Protection Agency | Proposed rule | Mar 13 |
National Priorities List 2026-04904 | Environmental Protection Agency | Final rule | Mar 13 |
Air Plan Approval; Michigan; Clean Data Determination for the Berrien, MI and Muskegon, MI Areas for the 2015 Ozone Standards 2026-04851 | Environmental Protection Agency | Proposed rule | Mar 12 |
Air Plan Approval; North Dakota; Approval of Air Quality Implementation Plans; Regional Haze State Implementation Plan; Regional Haze Five Year Progress Report and Nitrogen Oxides Best Available Retrofit Technology Determination for Coal Creek Station for the First Implementation Period 2026-04649 | Environmental Protection Agency | Final rule | Mar 10 |
Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and Five-Year Review 2026-04646 · significant | Environmental Protection Agency | Final rule | Mar 10 |
Air Plan Approval; Arizona; Attainment Plan for the Hayden SO2 Nonattainment Area for the 1971 and 2010 Sulfur Dioxide National Ambient Air Quality Standards 2026-04339 | Environmental Protection Agency | Proposed rule | Mar 4 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Texas; Control of Emissions From Existing Municipal Solid Waste Landfills 2026-04338 | Environmental Protection Agency | Proposed rule | Mar 4 |
Air Plan Approval; OR; Klamath Falls PM2.5 Redesignation to Attainment and Maintenance Plan 2026-04333 | Environmental Protection Agency | Proposed rule | Mar 4 |
Proposed Deletion From the National Priorities List 2026-04321 | Environmental Protection Agency | Proposed rule | Mar 4 |
Deletion From the National Priorities List 2026-04320 | Environmental Protection Agency | Final rule | Mar 4 |
Air Plan Approval; AK; Regional Haze State Implementation Plan for the Second Implementation Period 2026-04159 | Environmental Protection Agency | Final rule | Mar 3 |
Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology 2026-03937 | Environmental Protection Agency | Proposed rule | Feb 27 |
Air Plan Approvals; Illinois; Regional Haze Plan for the Second Implementation Period; Interstate Transport of Air Pollution for the 2012 PM2.5 and 2015 Ozone NAAQS 2026-03936 | Environmental Protection Agency | Proposed rule | Feb 27 |
Air Plan Approval; Ohio; Clean Data Determination for the Cleveland, Ohio Area for the 2015 Ozone Standard 2026-03934 | Environmental Protection Agency | Proposed rule | Feb 27 |
Air Plan Approval; Indiana; Keystone VOC RACT Alternative Control 2026-03933 | Environmental Protection Agency | Proposed rule | Feb 27 |
Air Plan Approval; Ohio; Source-Specific Non-CTG RACT and SIP Strengthening for Ohio 2026-03931 | Environmental Protection Agency | Proposed rule | Feb 27 |
Approval of Missouri's Request for Partial Program Delegation of Clean Air Act Section 112(r) Prevention of Accidental Release Program 2026-03891 | Environmental Protection Agency | Proposed rule | Feb 26 |
Air Plan Approval; Missouri; Reporting Emission Data, Emission Fees, and Process Information 2026-03888 | Environmental Protection Agency | Final rule | Feb 26 |
Air Plan Approval; Connecticut; State Implementation Plan Revisions Required as a Result of a Definition Change Due to the Ozone Reclassification 2026-03887 | Environmental Protection Agency | Final rule | Feb 26 |
Air Plan Approval; Michigan; Moderate Attainment Plan Elements for the Allegan County, Berrien County, and Muskegon County Areas for the 2015 Ozone Standard 2026-03880 | Environmental Protection Agency | Final rule | Feb 26 |
Air Plan Approval; Illinois; Clean Data Determination for the Illinois Portion of the St. Louis Area for the 2015 Ozone Standard 2026-03846 | Environmental Protection Agency | Proposed rule | Feb 26 |
Air Plan Approval; Missouri; Clean Data Determination for the 2015 8-Hour Ozone Standard for the Missouri Portion of the St. Louis Nonattainment Area 2026-03845 | Environmental Protection Agency | Proposed rule | Feb 26 |
Prior Notice of Citizen Suits 2026-03646 | Environmental Protection Agency | Proposed rule | Feb 24 |
National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal 2026-03638 · significant | Environmental Protection Agency | Final rule | Feb 24 |
Accidental Release Prevention Requirements: Risk Management Programs Under the Clean Air Act; Common Sense Approach to Chemical Accident Prevention 2026-03633 · significant | Environmental Protection Agency | Proposed rule | Feb 24 |
Rescission of the Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under the Clean Air Act 2026-03157 · significant | Environmental Protection Agency | Final rule | Feb 18 |
Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regional Haze State Implementation Plan for the Second Implementation Period 2026-03072 | Environmental Protection Agency | Proposed rule | Feb 17 |
Air Plan Revisions; Arizona; Arizona Department of Environmental Quality; Gila County Reasonably Available Control Technology 2026-02845 | Environmental Protection Agency | Proposed rule | Feb 12 |
Approval and Promulgation of Air Quality Implementation Plans; Oklahoma; Regional Haze State Implementation Plan for the Second Implementation Period 2026-02843 | Environmental Protection Agency | Proposed rule | Feb 12 |
Air Plan Approval; Illinois; Moderate Attainment Plan Elements for the Chicago and Metro East Areas for the 2015 Ozone Standard 2026-02842 | Environmental Protection Agency | Proposed rule | Feb 12 |
Air Plan Approval; Oklahoma; Interstate Transport Requirements for the 2010 SO2 NAAQS 2026-02841 | Environmental Protection Agency | Proposed rule | Feb 12 |
Partial Approval and Promulgation of State Plan for Designated Facilities and Pollutants; West Virginia; Control of Emissions From Existing Commercial and Industrial Solid Waste Incineration (CISWI) Units, Plan Revision 2026-02830 | Environmental Protection Agency | Proposed rule | Feb 12 |
Air Plan Approval; Ohio; Second Maintenance Plan for 2008 Ozone NAAQS 2026-02822 | Environmental Protection Agency | Final rule | Feb 12 |
Air Plan Approval; New York; New York Metropolitan Area Second Ten-Year Limited Maintenance Plan for the 2006 24-Hour PM2.5 Standard 2026-02810 | Environmental Protection Agency | Proposed rule | Feb 12 |
Deletion From the National Priorities List; Correction 2026-02809 | Environmental Protection Agency | Final rule | Feb 12 |
Air Plan Approval; AK; Updates to Materials Incorporated by Reference 2026-02478 | Environmental Protection Agency | Final rule | Feb 9 |
Air Plan Approval; Connecticut; Revised Format for Materials Incorporated by Reference 2026-02477 | Environmental Protection Agency | Final rule | Feb 9 |
Air Plan Approval; Pennsylvania; Proposed Revision to Philadelphia Gas Works, Richmond Plant Reasonably Available Control Technology Plan Under the 1997 8-Hour Ozone National Ambient Air Quality Standards 2026-02381 | Environmental Protection Agency | Proposed rule | Feb 6 |
Air Plan Revisions; California; Heavy-Duty Vehicle Inspection and Maintenance Program 2026-02350 | Environmental Protection Agency | Final rule | Feb 6 |
Approval and Promulgation of Air Quality Implementation Plans; Nevada; Regional Haze State Implementation Plan for the Second Implementation Period 2026-02344 | Environmental Protection Agency | Final rule | Feb 6 |
Interstate Transport Plan Review for the 2015 Ozone NAAQS 2026-01844 · significant | Environmental Protection Agency | Proposed rule | Jan 30 |
Air Plan Approval and Air Quality Designation; KY; Redesignation of the Kentucky Portion of the Louisville, KY-IN 2015 8-Hour Ozone Nonattainment Area to Attainment 2026-01772 | Environmental Protection Agency | Final rule | Jan 29 |
Determination of Attainment by the Attainment Date and Clean Data Determination; California, San Joaquin Valley 1997 Annual PM2.5 Fine Particulate Matter Nonattainment Area 2026-01766 | Environmental Protection Agency | Final rule | Jan 29 |
Air Plan Approval; Pennsylvania; Motor Vehicle Inspection and Maintenance Program Certification for Moderate Nonattainment Under the 2015 Ozone National Ambient Air Quality Standards 2026-01762 | Environmental Protection Agency | Final rule | Jan 29 |
Air Plan Approval; OR; Lane County Permitting Rule Revisions 2026-01735 | Environmental Protection Agency | Final rule | Jan 29 |
Determination of Attainment by the Attainment Date for the Louisville Moderate Area for the 2015 Ozone National Ambient Air Quality Standard 2026-01733 | Environmental Protection Agency | Proposed rule | Jan 29 |
Air Plan Disapproval; Colorado; Regional Haze Plan for the Second Implementation Period 2026-01413 | Environmental Protection Agency | Final rule | Jan 26 |
Air Plan Approval; Arkansas; Codification of the State Implementation Plan 2026-01410 | Environmental Protection Agency | Final rule | Jan 26 |
Air Plan Approval; Oklahoma; Revisions to Air Pollution Control Rules 2026-01408 | Environmental Protection Agency | Final rule | Jan 26 |
Air Plan Approval; Indiana; Regional Haze Plan for the Second Implementation Period 2026-01406 | Environmental Protection Agency | Final rule | Jan 26 |
Air Plan Approval; Montana; Revisions to Western Sugar Stipulation 2026-01324 | Environmental Protection Agency | Proposed rule | Jan 23 |
Proposed Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE; Extension of Comment Period 2026-01319 | Environmental Protection Agency | Proposed rule | Jan 23 |
Air Plan Approval; Maryland; Clean Data Determination for the Baltimore, MD Nonattainment Area for the 2015 Ozone National Ambient Air Quality Standards 2026-01314 | Environmental Protection Agency | Proposed rule | Jan 23 |
Air Plan Approval; Ohio; 2015 Ozone Moderate Reasonably Available Control Technology 2026-01001 | Environmental Protection Agency | Final rule | Jan 20 |
Determination of Attainment by the Attainment Date; 1997 Ozone Standards; California; Coachella Valley 2026-00782 | Environmental Protection Agency | Proposed rule | Jan 15 |
New Source Performance Standards Review for Stationary Combustion Turbines and Stationary Gas Turbines 2026-00677 · significant | Environmental Protection Agency | Final rule | Jan 15 |
Air Plan Approval; New York; Ortho Clinical Diagnostics 2026-00281 | Environmental Protection Agency | Final rule | Jan 9 |
Air Plan Approval; Ohio; Ohio Permit Rules Revisions 2026-00258 | Environmental Protection Agency | Proposed rule | Jan 9 |
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Ohio; Delegation of Authority 2026-00253 | Environmental Protection Agency | Final rule | Jan 9 |
Air Plan Approval; New Hampshire; Updates to Materials Incorporated by Reference 2026-00249 | Environmental Protection Agency | Final rule | Jan 9 |
Air Plan Approval; Indiana; Huntington County 2010 Sulfur Dioxide Redesignation and Maintenance Plan 2026-00246 | Environmental Protection Agency | Final rule | Jan 9 |
Clean Air Act Title V Operating Permit Program Revision; District of Columbia 2026-00215 | Environmental Protection Agency | Proposed rule | Jan 8 |
Air Plan Approval; Missouri; Construction Permits Required 2026-00214 | Environmental Protection Agency | Proposed rule | Jan 8 |
Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements 2026-00208 | Environmental Protection Agency | Final rule | Jan 8 |
Air Plan Approval; Kentucky; Emissions Inventory and Nonattainment New Source Review for the Henderson-Webster Sulfur Dioxide Nonattainment Area 2026-00201 | Environmental Protection Agency | Final rule | Jan 8 |
Air Plan Approval; California; Mojave Desert Air Quality Management District; Definition of Terms 2026-00194 | Environmental Protection Agency | Final rule | Jan 8 |
Utah; Northern Wasatch Front; 2015 8-Hour Ozone Nonattainment Area Boundary Expansion and Applicability of Certain Clean Air Act Requirements 2026-00007 | Environmental Protection Agency | Final rule | Jan 6 |
Air Plan Revision; California; Placer County Air Pollution Control District; New Source Review 2026-00006 | Environmental Protection Agency | Final rule | Jan 6 |
Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District 2026-00005 | Environmental Protection Agency | Final rule | Jan 6 |
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements; Withdrawal of Direct Final Rule 2026-00004 | Environmental Protection Agency | Final rule | Jan 6 |
Extension of the State Implementation Plan Due Date for the Regional Haze Third Implementation Period 2026-00003 | Environmental Protection Agency | Final rule | Jan 6 |
Air Plan Approval; Michigan and Minnesota; Revision to Taconite Federal Implementation Plan 2025-24207 | Environmental Protection Agency | Final rule | Jan 2 |
Congressional Review Act Revocation of 2024 Review of Final Rule Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act 2025-24202 | Environmental Protection Agency | Final rule | Jan 2 |
Proposed Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE 2025-24200 | Environmental Protection Agency | Proposed rule | Jan 2 |
National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma 2025-24149 | Environmental Protection Agency | Final rule | Jan 2 |
Air Plan Approval; Colorado; Revisions to Colorado Procedural Rules and Common Provisions Regulation 2025-24141 | Environmental Protection Agency | Final rule | Jan 2 |
New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Louisiana 2025-23284 | Environmental Protection Agency | Final rule | Dec 18, 2025 |
New Source Performance Standards; Delegation of Authority to Oklahoma 2025-23275 | Environmental Protection Agency | Final rule | Dec 18, 2025 |
Air Plan Approval: Arizona: Infrastructure Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standard 2025-23259 | Environmental Protection Agency | Final rule | Dec 18, 2025 |
Air Plan Approval; New Hampshire; Single Source VOC RACT Order for Hutchinson Sealing Systems 2025-22610 | Environmental Protection Agency | Proposed rule | Dec 11, 2025 |
Air Plan Approval; Michigan; Moderate Attainment Plan Elements for the Allegan County, Berrien County, and Muskegon County Areas for the 2015 Ozone Standard 2025-22607 | Environmental Protection Agency | Proposed rule | Dec 11, 2025 |
Air Plan Approval; Connecticut; Plan Submittals for the 2008 Ozone National Ambient Air Quality Standard 2025-22595 | Environmental Protection Agency | Final rule | Dec 11, 2025 |
Air Plan Disapproval; Ohio; E-Check Attestation Provisions 2025-22594 | Environmental Protection Agency | Proposed rule | Dec 11, 2025 |
Air Plan Approval; California; South Coast Air Quality Management District 2025-22584 | Environmental Protection Agency | Final rule | Dec 11, 2025 |
Approval of Air Quality Implementation Plans; Arizona; Arizona Department of Environmental Quality; Stationary Source Permits; West Pinal County; PM10 2025-22582 | Environmental Protection Agency | Final rule | Dec 11, 2025 |
Air Plan Approval; South Carolina; Second Planning Period Regional Haze Plan 2025-22565 | National Oceanic and Atmospheric Administration | Final rule | Dec 11, 2025 |
Air Plan Approval; Tennessee; Second Period Regional Haze Plan 2025-22564 | Environmental Protection Agency | Final rule | Dec 11, 2025 |
Air Plan Approval; Ohio; Carmeuse Lime, Inc. SO2 2025-22562 | Environmental Protection Agency | Final rule | Dec 11, 2025 |
Air Plan Approval; Virginia; Amendment to the State Operating Permit for GP Big Island, LLC 2025-22533 | Environmental Protection Agency | Proposed rule | Dec 11, 2025 |
Air Plan Approval; California; San Joaquin Valley Air Pollution Control District 2025-22530 | Environmental Protection Agency | Proposed rule | Dec 11, 2025 |
Air Plan Approval; Arizona; Maricopa County Air Quality Department; Volatile Organic Compounds and Particulate Matter; Solvent Cleaning; Architectural Coatings; Incinerators, Burn-Off Ovens, and Crematories 2025-22517 | Environmental Protection Agency | Final rule | Dec 11, 2025 |
National Emission Standards for Hazardous Air Pollutants for Coke Ovens: Pushing, Quenching, and Battery Stacks, and Coke Oven Batteries; Rescission of Extension of Compliance Deadlines for Coke Oven Facilities 2025-22034 | Environmental Protection Agency | Final rule | Dec 5, 2025 |
Air Plan Approval; Texas and Oklahoma; Texas Regional Haze Plans for the First and Second Implementation Periods and Five-Year Progress Report; Oklahoma Regional Haze Plan for the First Implementation Period 2025-22002 | Environmental Protection Agency | Final rule | Dec 5, 2025 |
Oil and Natural Gas Sector Climate Review: Extension of Deadlines in Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources 2025-21788 · significant | Environmental Protection Agency | Final rule | Dec 3, 2025 |
Air Plan Approval; Virginia; Repeal of Existing Stationary Source Regulations 2025-21557 | Environmental Protection Agency | Proposed rule | Nov 28, 2025 |
Air Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision 2025-21413 | Environmental Protection Agency | Proposed rule | Nov 28, 2025 |
Air Plan Approval; Missouri; Reporting Emission Data, Emission Fees, and Process Information 2025-21346 | Environmental Protection Agency | Proposed rule | Nov 28, 2025 |
Air Plan Approval; Montana; Regional Haze Plan for the Second Implementation Period 2025-21340 | Environmental Protection Agency | Final rule | Nov 28, 2025 |
Air Plan Approval; Ohio; Emergency Episodes and Ambient Air Quality Standards 2025-21322 | Environmental Protection Agency | Final rule | Nov 26, 2025 |
Delegation of Authority to North Carolina and Forsyth County of the Federal Plan for Existing Landfills 2025-21306 | Environmental Protection Agency | Final rule | Nov 26, 2025 |
Air Plan Approval; Indiana; Second Maintenance Plan for 2008 Ozone NAAQS 2025-20672 | Environmental Protection Agency | Proposed rule | Nov 21, 2025 |
Air Plan Approval; New York; Athens Generating Plant 2025-20499 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Air Plan Approval; Maine; Chapter 140: Part 70 Air Emission License Regulation 2025-20498 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Finding of Failure To Attain and Reclassification of Tribal Portions of the Greater Connecticut Ozone Nonattainment Area as Serious for the 2015 Ozone National Ambient Air Quality Standards 2025-20497 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Operating Permit Program Approval; New Hampshire; Revised Definitions 2025-20496 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements 2025-20495 | Environmental Protection Agency | Final rule | Nov 20, 2025 |
Air Plan Approval; Minnesota; Exempt Source SIP Revision 2025-20492 | Environmental Protection Agency | Final rule | Nov 20, 2025 |
Air Plan Approval; Connecticut; Ozone Ambient Air Quality Standard and Adhesive and Sealants Regulation Revisions 2025-20463 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Air Plan Approval; Rhode Island; Decommissioning of Stage II Vapor Recovery Systems 2025-20458 | Environmental Protection Agency | Final rule | Nov 20, 2025 |
Air Plan Approval; South Carolina; Charlotte-Gastonia-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS 2025-20449 | Environmental Protection Agency | Final rule | Nov 20, 2025 |
Air Plan Approval; Rhode Island; Regional Haze State Implementation Plan for the Second Implementation Period; Prong 4 (Visibility) for the 2015 8-Hour Ozone National Ambient Air Quality Standard 2025-20444 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Air Plan Approval; Minnesota; Metropolitan Council Wastewater Treatment Plant Title I PM10 SIP Revisions 2025-20441 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Approval and Promulgation of State Air Quality Plans (Negative Declarations) for Designated Facilities and Pollutants; District of Columbia 2025-20419 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment Area 2025-20418 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Air Plan Approval; District of Columbia; Creation of Synthetic Minor Permit Program 2025-20416 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Air Plan Approval; AK; Regional Haze Plan for the Second Implementation Period; Extension of Comment Period 2025-20415 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Approval and Promulgation of Delegation of Authority for Designated Facilities and Pollutants; Allegheny County; Delegation of Authority of the Federal Plan for Existing Sewage Sludge Incineration Units 2025-20411 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Air Plan Approval; Pennsylvania; Redesignation Request for the Allegheny County Area for the 2012 Annual Fine Particulate Matter Standard 2025-20409 | Environmental Protection Agency | Proposed rule | Nov 20, 2025 |
Air Plan Approval; California; Eastern Kern Air Pollution Control District; Stationary Combustion Turbines 2025-20407 | Environmental Protection Agency | Final rule | Nov 20, 2025 |
Approval 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 2025-20372 | Environmental Protection Agency | Final rule | Nov 20, 2025 |
Determination of Attainment by the Attainment Date but for International Emissions for the 2015 Ozone National Ambient Air Quality Standards; Phoenix-Mesa Nonattainment Area, Arizona 2025-20357 | Environmental Protection Agency | Proposed rule | Nov 19, 2025 |
Air Plan Approval; Arizona; Maricopa County Air Quality Department; Petroleum Solvent Dry Cleaning 2025-20354 | Environmental Protection Agency | Final rule | Nov 19, 2025 |
Approval 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 2025-20352 | Environmental Protection Agency | Final rule | Nov 19, 2025 |
Air Plan Approval; Colorado; Inspection and Maintenance Program Revision 2025-20205 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air Plan Approval; Montana: Infrastructure Requirements for the 2015 Ozone National Ambient Air Quality Standards 2025-20203 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air Plan Approval; State of Kansas; Attainment Redesignation for 2008 Lead NAAQS and Associated Maintenance Plan 2025-20200 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air Plan Approval; IA, Muscatine; 2010 1-Hour SO2 Maintenance Plan and Redesignation 2025-20197 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air 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 2025-20194 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air Plan Approval; Michigan; Revisions to Part 1 and 2 Rules 2025-20150 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air Plan Approval; Rhode Island; Amendments to Motor Vehicle Inspection and Maintenance Program 2025-20143 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air Plan Approval; Connecticut; 2014 and 2017 Periodic Emissions Inventory for 2008 8-Hour Ozone NAAQS 2025-20142 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air Plan Approval; Vermont; Regional Haze State Implementation Plan for the Second Implementation Period 2025-20141 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air Plan Approval; AK, Fairbanks North Star Borough; 2006 24-Hour PM2.5 Serious Area and 189(d) Plan 2025-20097 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air 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 2025-20096 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Air Plan Approval; Arizona; Yuma 2015 8-Hour Ozone Nonattainment Area; Redesignation Request and Maintenance Plan 2025-20095 | Environmental Protection Agency | Final rule | Nov 18, 2025 |
Approval of Source-Specific Air Quality Implementation Plan; New York; Calpine JFK Energy Center 2025-19992 | Environmental Protection Agency | Proposed rule | Nov 17, 2025 |
Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP Provisions 2025-19989 | Environmental Protection Agency | Proposed rule | Nov 17, 2025 |
Approval of Clean Air Plans; San Joaquin Valley, California; Contingency Measures for 1997 Ozone Standards 2025-19884 | Environmental Protection Agency | Proposed rule | Nov 14, 2025 |
Air Plan Approval; Utah; Interstate Transport of Air Pollution for the 2008 8-Hour Ozone National Ambient Air Quality Standard 2025-19824 | Environmental Protection Agency | Final rule | Nov 10, 2025 |
National Emission Standards for Hazardous Air Pollutants From Hazardous Waste Combustors: Residual Risk and Technology Review; Withdrawal of Proposed Revisions to Standards for Periods of Malfunction 2025-19815 · significant | Environmental Protection Agency | Proposed rule | Nov 10, 2025 |
Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program in Refrigeration and Air Conditioning and Fire Suppression 2025-19812 | Environmental Protection Agency | Proposed rule | Nov 10, 2025 |
Determination of Attainment by the Attainment Date; California; Mariposa County; 2015 8-Hour Ozone National Ambient Air Quality Standards 2025-19714 | Environmental Protection Agency | Final rule | Oct 30, 2025 |
Air Plan Approval; AK; Regional Haze Plan for the Second Implementation Period 2025-19713 | Environmental Protection Agency | Proposed rule | Oct 30, 2025 |
Air Plan Approval; Arizona; Interstate Transport Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standard 2025-19638 | Environmental Protection Agency | Proposed rule | Oct 23, 2025 |
Approval and Promulgation of Air Quality Implementation Plans; Nevada; Regional Haze State Implementation Plan for the Second Implementation Period 2025-19637 | Environmental Protection Agency | Proposed rule | Oct 23, 2025 |
Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Promulgated Under the Technology Transitions Provisions of the American Innovation and Manufacturing Act of 2020 2025-19438 · significant | Environmental Protection Agency | Proposed rule | Oct 3, 2025 |
Visibility Protection: Regional Haze State Plan Requirements Rule Revision 2025-19280 · significant | Environmental Protection Agency | Proposed rule | Oct 2, 2025 |
Air Plan Approval; Ohio; Muskingum River 2010 Sulfur Dioxide Redesignation and Maintenance Plan 2025-19278 | Environmental Protection Agency | Proposed rule | Oct 2, 2025 |
Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Revisions to Regulation for Control of Ozone Season Nitrogen Oxide Emissions 2025-19238 | Environmental Protection Agency | Final rule | Oct 2, 2025 |
Air Plan Approval; GA; Removal of Emissions Statements Requirement and Updates To Permit by Rule 2025-19228 | Environmental Protection Agency | Final rule | Oct 2, 2025 |
Air Plan Approval; Alabama; Standards for Granting Permits and Major New Source Review Permit Rules 2025-19227 | Environmental Protection Agency | Final rule | Oct 2, 2025 |
Air Plan Approval; GA; Updates to the Cross-State Air Pollution Rule 2025-19226 | Environmental Protection Agency | Final rule | Oct 2, 2025 |
Air Plan Approval; North Carolina; Revisions to Regulations for Sulfur Dioxide Emissions From Combustion Sources 2025-19225 | Environmental Protection Agency | Final rule | Oct 2, 2025 |
National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review 2025-19155 | Environmental Protection Agency | Proposed rule | Oct 1, 2025 |
Air Plan Approval; New York; Update to Materials Incorporated by Reference 2025-18690 | Environmental Protection Agency | Final rule | Sep 26, 2025 |
Air Plan Approval; Ohio; Volatile Organic Compounds RFD Beaufort 2025-18652 | Environmental Protection Agency | Proposed rule | Sep 25, 2025 |
Air Plan Approval; California; San Joaquin Valley 1-Hour Ozone Area; Maintenance Plan and Redesignation Request 2025-18637 | Environmental Protection Agency | Final rule | Sep 25, 2025 |
Finding of Failure To Attain the 1997 8-Hour Ozone Standards; California; San Joaquin Valley 2025-18636 | Environmental Protection Agency | Final rule | Sep 25, 2025 |
Air Plan Approval; Virginia; Revision to the Regulatory Definition of Volatile Organic Compound 2025-18635 | Environmental Protection Agency | Proposed rule | Sep 25, 2025 |
Air Plan Approval; Oregon; 2024 Vehicle Inspection Program Updates 2025-18629 | Environmental Protection Agency | Proposed rule | Sep 25, 2025 |
Air Plan Approval; Delaware; Motor Vehicle Inspection and Maintenance Program Certification 2025-18626 | Environmental Protection Agency | Final rule | Sep 25, 2025 |
Air Plan Approval; West Virginia; 2024 Amendments to West Virginia's Ambient Air Quality Standards 2025-18611 | Environmental Protection Agency | Final rule | Sep 25, 2025 |
Air Plan Approval; Washington; Regional Haze State Implementation Plan for the Second Implementation Period 2025-18599 | Environmental Protection Agency | Final rule | Sep 25, 2025 |
Air Plan Approval; Indiana; Huntington County 2010 Sulfur Dioxide Redesignation and Maintenance Plan 2025-18594 | Environmental Protection Agency | Proposed rule | Sep 25, 2025 |
Utah; Northern Wasatch Front; 2015 8-Hour Ozone Nonattainment Area Boundary Expansion and Applicability of Certain Clean Air Act Requirements 2025-18569 | Environmental Protection Agency | Proposed rule | Sep 25, 2025 |
Air Plan Approval; Missouri; Definitions and Common Reference Tables 2025-18568 | Environmental Protection Agency | Final rule | Sep 25, 2025 |
Renewable 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 2025-18111 · significant | Environmental Protection Agency | Proposed rule | Sep 18, 2025 |
Air Plan Approval; Guam; Clean Data Determination for the Piti-Cabras Nonattainment Area for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard 2025-18067 | Environmental Protection Agency | Final rule | Sep 18, 2025 |
Air Plan Approval; Guam; Guam Environmental Protection Agency; New Source Review 2025-18062 | Environmental Protection Agency | Final rule | Sep 18, 2025 |
Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District 2025-17638 | Environmental Protection Agency | Proposed rule | Sep 12, 2025 |
Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements 2025-17528 | Environmental Protection Agency | Proposed rule | Sep 11, 2025 |
Proposed Deletion From the National Priorities List 2025-17505 | Environmental Protection Agency | Proposed rule | Sep 11, 2025 |
Approval of Air Quality Implementation Plans; Arizona; Arizona Department of Environmental Quality; Stationary Source Permits; West Pinal County; PM10 2025-17502 | Environmental Protection Agency | Proposed rule | Sep 11, 2025 |
Air Plan Revisions; Arizona; Maricopa County Air Quality Department; Particulate Matter; Incinerators, Burn-Off Ovens, and Crematories 2025-17501 | Environmental Protection Agency | Proposed rule | Sep 11, 2025 |
Air Plan Approval; Arizona; Maricopa County Air Quality Department; Volatile Organic Compounds; Architectural Coatings 2025-17500 | Environmental Protection Agency | Proposed rule | Sep 11, 2025 |
Air 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 2025-17499 | Environmental Protection Agency | Proposed rule | Sep 11, 2025 |
Air Plan Revisions; Arizona; Maricopa County Air Quality Department; Volatile Organic Compounds; Solvent Cleaning 2025-17498 | Environmental Protection Agency | Proposed rule | Sep 11, 2025 |
Air Plan Approval; Wyoming; R-35 Wyoming Air Quality Standards and Regulations Rule Package 2025-17486 | Environmental Protection Agency | Final rule | Sep 11, 2025 |
Air Plan Approval; New Jersey; Memorandum of Agreement To Address NOX SIP Call Requirements 2025-17485 | Environmental Protection Agency | Final rule | Sep 11, 2025 |
Air Plan Approval; Michigan; Second Period Regional Haze Plan 2025-17096 | Environmental Protection Agency | Final rule | Sep 5, 2025 |
Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth Ozone Nonattainment Area 2025-17081 | Environmental Protection Agency | Proposed rule | Sep 5, 2025 |
Air Plan Approval; Texas; Reasonably Available Control Technology in the Houston-Galveston-Brazoria Ozone Nonattainment Area 2025-17080 | Environmental Protection Agency | Proposed rule | Sep 5, 2025 |
Air 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 2025-17064 | Environmental Protection Agency | Final rule | Sep 5, 2025 |
Air Plan Approval; California; State Implementation Plan Revision for Chico, Modesto and Stockton Carbon Monoxide Maintenance Areas 2025-17061 | Environmental Protection Agency | Final rule | Sep 5, 2025 |
Extension of the Attainment Date of the Coachella Valley Extreme Nonattainment Area Under the 1997 Ozone National Ambient Air Quality Standards 2025-17060 | Environmental Protection Agency | Final rule | Sep 5, 2025 |
Air Plan Approval; OR; Lane County Permitting Rule Revisions 2025-17055 | Environmental Protection Agency | Proposed rule | Sep 5, 2025 |
Air Plan Approval; ID; Regional Haze Plan for the Second Implementation Period 2025-17054 | Environmental Protection Agency | Final rule | Sep 5, 2025 |
Air Plan Approval; Kentucky; Emissions Inventory and Nonattainment New Source Review for the Henderson-Webster Sulfur Dioxide Nonattainment Area 2025-17048 | Environmental Protection Agency | Proposed rule | Sep 5, 2025 |
Approval of Air Quality Implementation Plans; California; Regional Haze State Implementation Plan for the Second Implementation Period 2025-17045 | Environmental Protection Agency | Final rule | Sep 5, 2025 |
Air Plan Approval; Arkansas; Regional Haze State Implementation Plan for the Second Implementation Period 2025-17041 | Environmental Protection Agency | Proposed rule | Sep 5, 2025 |
Revisions to the Clean Air Act Operating Permit Program; California; San Diego County Air Pollution Control District 2025-17039 | Environmental Protection Agency | Final rule | Sep 5, 2025 |
Revisions to the Clean Air Act Operating Permit Program; California; San Diego County Air Pollution Control District 2025-17038 | Environmental Protection Agency | Proposed rule | Sep 5, 2025 |
Withdrawals 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 2025-17029 | Environmental Protection Agency | Final rule | Sep 5, 2025 |
Air Plan Approval; Missouri; Control of Sulfur Dioxide Emissions and Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants 2025-17028 | Environmental Protection Agency | Final rule | Sep 5, 2025 |
National Emission Standards for Hazardous Air Pollutants for the Polyether Polyols Production Industry: Removal of Affirmative Defense 2025-16744 | Environmental Protection Agency | Final rule | Sep 2, 2025 |
Air Plan Approval; GA; Removal of Nonattainment Area New Source Review 2025-16723 | Environmental Protection Agency | Proposed rule | Sep 2, 2025 |
Approval 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 2025-16486 | Environmental Protection Agency | Proposed rule | Aug 28, 2025 |
Air Plan Approval; Ohio; 2015 Ozone Moderate Reasonably Available Control Technology SIP 2025-16484 | Environmental Protection Agency | Proposed rule | Aug 28, 2025 |
Air Plan Approval; Arkansas; Codification of the State Implementation Plan 2025-16483 | Environmental Protection Agency | Proposed rule | Aug 28, 2025 |
Air Plan Approval; Pennsylvania; Motor Vehicle Inspection and Maintenance Program Certification for Moderate Nonattainment Under the 2015 Ozone National Ambient Air Quality Standards 2025-16482 | Environmental Protection Agency | Proposed rule | Aug 28, 2025 |
Air Plan Approval; South Dakota; Regional Haze Plan for the Second Implementation Period 2025-16468 | Environmental Protection Agency | Final rule | Aug 28, 2025 |
Air Plan Approval; Texas; Interstate Transport Requirements for the 2010 SO2 NAAQS 2025-16467 | Environmental Protection Agency | Final rule | Aug 28, 2025 |
Air Plan Approval; California; Mojave Desert Air Quality Management District; Internal Combustion Engines 2025-16466 | Environmental Protection Agency | Final rule | Aug 28, 2025 |
Commercial and Industrial Solid Waste Incineration Units: Temporary-Use Incinerators and Air Curtain Incinerators Used in Disaster Recovery 2025-16360 | Environmental Protection Agency | Final rule | Aug 26, 2025 |
Phasedown of Hydrofluorocarbons: Review and Renewal of Eligibility for Application-Specific Allowances 2025-16357 · significant | Environmental Protection Agency | Final rule | Aug 26, 2025 |
Air Plan Revisions; California; Heavy-Duty Vehicle Inspection and Maintenance Program 2025-16325 | Environmental Protection Agency | Proposed rule | Aug 26, 2025 |
Florida; Approval of State Plan for Control of Emissions From Commercial and Industrial Solid Waste Incineration Units 2025-16193 | Environmental Protection Agency | Final rule | Aug 25, 2025 |
Air Plan Approval; WA; Update to Materials Incorporated by Reference 2025-15992 | Environmental Protection Agency | Final rule | Aug 21, 2025 |
Determination of Attainment by the Attainment Date; 2008 8-Hour Ozone Standards; California; Sacramento Metro Area 2025-15990 | Environmental Protection Agency | Final rule | Aug 21, 2025 |
Air Plan Approval; California; Revised Format for Materials Incorporated by Reference 2025-15989 | Environmental Protection Agency | Final rule | Aug 21, 2025 |
Air Plan Approval; Alabama; Standards for Granting Permits and Major New Source Review Permit Rules 2025-15987 | Environmental Protection Agency | Proposed rule | Aug 21, 2025 |
Air Plan Approval; GA; Removal of Emissions Statements Requirement and Updates To Permit by Rule 2025-15986 | Environmental Protection Agency | Proposed rule | Aug 21, 2025 |
Air Plan Approval; Arizona; Maricopa County Air Quality Department; Petroleum Solvent Dry Cleaning 2025-15984 | Environmental Protection Agency | Proposed rule | Aug 21, 2025 |
Air Plan Approval; IA, Muscatine; 2010 1-Hour SO2 Maintenance Plan and Redesignation 2025-15983 | Environmental Protection Agency | Proposed rule | Aug 21, 2025 |
Air Plan Approval; Tennessee; Second Planning Period Regional Haze Plan 2025-15748 | Environmental Protection Agency | Proposed rule | Aug 19, 2025 |
Air Plan Approval; North Carolina; Removal of Emissions Exemptions 2025-15557 | Environmental Protection Agency | Proposed rule | Aug 15, 2025 |
Air Plan Approval; GA; Updates to the Cross-State Air Pollution Rule 2025-15461 | Environmental Protection Agency | Proposed rule | Aug 14, 2025 |
Air Plan Approval; North Carolina; Revisions to Regulations for Sulfur Dioxide Emissions From Combustion Sources 2025-15460 | Environmental Protection Agency | Proposed rule | Aug 14, 2025 |
Air Plan Approval; Rhode Island; Decommissioning of Stage II Vapor Recovery Systems 2025-15459 | Environmental Protection Agency | Proposed rule | Aug 14, 2025 |
Air Plan Approval; Michigan; Detroit 2010 Sulfur Dioxide Redesignation and Maintenance Plan 2025-15458 | Environmental Protection Agency | Proposed rule | Aug 14, 2025 |
Finding of Failure To Attain; Air Plan Approval; Indiana; Huntington County Sulfur Dioxide Attainment Plan 2025-15455 | Environmental Protection Agency | Final rule | Aug 14, 2025 |
Approval and Promulgation of State Implementation Plans; New York; Emission Statement Certification of the 2008 and 2015 Ozone National Ambient Air Quality Standards 2025-15443 | Environmental Protection Agency | Final rule | Aug 14, 2025 |
Air Plan Approval; IA; Alter Metal Recycling Permit Modification 2025-15442 | Environmental Protection Agency | Final rule | Aug 14, 2025 |
Air Plan Approval; Oregon; Lane Regional Air Protection Agency, Outdoor Burning 2025-15441 | Environmental Protection Agency | Final rule | Aug 14, 2025 |
Air Plan Approval; Missouri; Removal of Obsolete Rules on Control of NOX Emissions 2025-15440 | Environmental Protection Agency | Final rule | Aug 14, 2025 |
Air Plan Approval; Ohio; Carmeuse Lime, Inc. SO2 2025-14989 | Environmental Protection Agency | Proposed rule | Aug 7, 2025 |
Air Plan Approval; Wyoming; Revisions to Regional Haze State Implementation Plan 2025-14983 | Environmental Protection Agency | Final rule | Aug 7, 2025 |
Air Plan Approval; Colorado; Inspection and Maintenance Program Revision 2025-14982 | Environmental Protection Agency | Proposed rule | Aug 7, 2025 |
Air Plan Approval; State of Kansas; Attainment Redesignation for the 2008 Lead NAAQS and Associated Maintenance Plan 2025-14980 | Environmental Protection Agency | Proposed rule | Aug 7, 2025 |
Air Plan Approval; OR; Update to Materials Incorporated by Reference 2025-14971 | Environmental Protection Agency | Final rule | Aug 7, 2025 |
Air Plan Approval; IA; Regional Haze State Implementation Plan for the Second Implementation Period 2025-14850 | Environmental Protection Agency | Final rule | Aug 5, 2025 |
Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards 2025-14572 · significant | Environmental Protection Agency | Proposed rule | Aug 1, 2025 |
Extension 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 2025-14531 · significant | Environmental Protection Agency | Final rule | Jul 31, 2025 |
Air Plan Approval; California; South Coast Air Quality Management District 2025-14528 | Environmental Protection Agency | Proposed rule | Jul 31, 2025 |
Air Plan Approval; South Carolina; Second Planning Period Regional Haze Plan 2025-14476 | Environmental Protection Agency | Proposed rule | Jul 31, 2025 |
Finding 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 2025-14472 | Environmental Protection Agency | Final rule | Jul 31, 2025 |
Air 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 2025-14470 | Environmental Protection Agency | Proposed rule | Jul 31, 2025 |
Air Plan Approval; Rhode Island; Amendments to Motor Vehicle Inspection and Maintenance Program 2025-14105 | Environmental Protection Agency | Proposed rule | Jul 28, 2025 |
Air Plan Approval; Washington; Regional Haze State Implementation Plan for the Second Implementation Period 2025-13957 | Environmental Protection Agency | Proposed rule | Jul 24, 2025 |
Air 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 2025-13946 | Environmental Protection Agency | Proposed rule | Jul 24, 2025 |
Air Plan Approval; New York; Ortho Clinical Diagnostics 2025-13937 | Environmental Protection Agency | Proposed rule | Jul 24, 2025 |
Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth Ozone Nonattainment Area 2025-13930 | Environmental Protection Agency | Proposed rule | Jul 24, 2025 |
Air Plan Revisions; California; Mojave Desert Air Quality Management District; New Source Review; Stationary Source Permits 2025-13906 | Environmental Protection Agency | Proposed rule | Jul 24, 2025 |
Interim Final Determination To Stay or Defer Sanctions; California; Mojave Desert Air Quality Management District 2025-13905 | Environmental Protection Agency | Final rule | Jul 24, 2025 |
Air Plan Approval; Texas; Reasonably Available Control Technology in the Houston-Galveston-Brazoria Ozone Nonattainment Area 2025-13904 | Environmental Protection Agency | Proposed rule | Jul 24, 2025 |
Air 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 2025-13893 | Environmental Protection Agency | Final rule | Jul 24, 2025 |
Approval and Promulgation of Air Quality Implementation Plans; Maryland; Nitrogen Oxides Ozone Season Emissions Caps for Non-Trading Large Nitrogen Oxides Units; Amendments 2025-13891 | Environmental Protection Agency | Final rule | Jul 24, 2025 |
Air Plan Approval; Connecticut; Plan for Inclusion of a Consent Order and Removal of State Orders 2025-13886 | Environmental Protection Agency | Final rule | Jul 24, 2025 |
Air Plan Approval; Ohio; Second Maintenance Plan for the Ohio Portion of the Campbell-Clermont, KY-OH SO2 Maintenance Area 2025-13344 | Environmental Protection Agency | Final rule | Jul 16, 2025 |
Air Plan Partial Approval and Partial Disapproval; Colorado; Regional Haze Plan for the Second Implementation Period 2025-13342 | Environmental Protection Agency | Proposed rule | Jul 16, 2025 |
Air Quality State Implementation Plans; Approval and Promulgations: Montana: Infrastructure Requirements for the 2015 Ozone National Ambient Air Quality Standards 2025-13341 | Environmental Protection Agency | Proposed rule | Jul 16, 2025 |
Determination of Attainment by the Attainment Date and Clean Data Determination; California, San Joaquin Valley 1997 Annual PM2.5 Fine Particulate Matter Nonattainment Area 2025-13339 | Environmental Protection Agency | Proposed rule | Jul 16, 2025 |
Air Plan Approval; State of Utah; Utah PM2.5 State Implementation Plan Revisions 2025-13337 | Environmental Protection Agency | Proposed rule | Jul 16, 2025 |
Air Plan Approval; New Jersey; Update to Materials Incorporated by Reference 2025-13333 | Environmental Protection Agency | Final rule | Jul 16, 2025 |
Air Plan Approval; Connecticut; 2017 Base Year Emissions Inventory for the 2015 8-Hour Ozone National Ambient Air Quality Standards 2025-13331 | Environmental Protection Agency | Final rule | Jul 16, 2025 |
Air 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 2025-13328 | Environmental Protection Agency | Final rule | Jul 16, 2025 |
Air Plan Approval; Minnesota; Exempt Source SIP Revision 2025-13327 | Environmental Protection Agency | Proposed rule | Jul 16, 2025 |
Air Plan Approval; Connecticut; State Implementation Plan Revisions Required as a Result of a Definition Change Due to the Ozone Reclassification 2025-13324 | Environmental Protection Agency | Proposed rule | Jul 16, 2025 |
Air Plan Approval; California; Mojave Desert Air Quality Management District; Definition of Terms 2025-12867 | Environmental Protection Agency | Proposed rule | Jul 10, 2025 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Oklahoma; Control of Emissions From Existing Other Solid Waste Incineration Units, Hospital/Medical/Infectious Waste Incinerator Units, and Commercial and Industrial Solid Waste Incineration Units 2025-12866 | Environmental Protection Agency | Proposed rule | Jul 10, 2025 |
Finding of Failure To Attain the 1997 8-Hour Ozone Standards; California; San Joaquin Valley 2025-12856 | Environmental Protection Agency | Proposed rule | Jul 10, 2025 |
Air Plan Approval; Louisiana; Nonattainment Plan for the Evangeline Parish 2010 Sulfur Dioxide Primary National Ambient Air Quality Standard Nonattainment Area 2025-12801 | Environmental Protection Agency | Final rule | Jul 10, 2025 |
National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklahoma 2025-12800 | Environmental Protection Agency | Proposed rule | Jul 10, 2025 |
Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer 2025-12798 | Environmental Protection Agency | Final rule | Jul 10, 2025 |
National 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 2025-12626 | Environmental Protection Agency | Final rule | Jul 8, 2025 |
Air Plan Approval; Ohio; Regional Haze Plan for the Second Implementation Period 2025-12526 | Environmental Protection Agency | Final rule | Jul 8, 2025 |
Air Plan Approval; Florida; Revisions to Stationary Sources-Removal of Clean Air Interstate Rule Provisions 2025-12602 | Environmental Protection Agency | Final rule | Jul 7, 2025 |
Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Oklahoma; Control of Emissions From Existing Municipal Solid Waste Landfills 2025-12599 | Environmental Protection Agency | Final rule | Jul 7, 2025 |
Air Plan Approval; California; Revised Format for Nonregulatory Provisions 2025-12586 | Environmental Protection Agency | Final rule | Jul 7, 2025 |
Air Plan Approval; Louisiana; Interstate Transport Requirements for the 2010 SO2 NAAQS 2025-12533 | Environmental Protection Agency | Final rule | Jul 7, 2025 |
Air Plan Approval; West Virginia; Regional Haze State Implementation Plan for the Second Implementation Period 2025-12527 | Environmental Protection Agency | Final rule | Jul 7, 2025 |
New Source Performance Standards; Delegation of Authority to Oklahoma 2025-12520 | Environmental Protection Agency | Proposed rule | Jul 7, 2025 |
Air Plan Approval; Connecticut; 2014 and 2017 Periodic Emissions Inventory for 2008 8-Hour Ozone NAAQS 2025-12515 | Environmental Protection Agency | Proposed rule | Jul 7, 2025 |
Air Plan Approval; Ohio; Moderate Attainment Plan Elements for the Cleveland Area for the 2015 Ozone Standard 2025-12512 | Environmental Protection Agency | Final rule | Jul 7, 2025 |
Air Plan Approval; Oklahoma; Revisions to Air Pollution Control Rules 2025-12508 | Environmental Protection Agency | Proposed rule | Jul 7, 2025 |
Renewable Fuel Standard (RFS) Program: Partial Waiver of the 2024 Cellulosic Biofuel Volume Requirement 2025-11153 | Environmental Protection Agency | Final rule | Jul 7, 2025 |
National Priorities List 2025-12499 | Environmental Protection Agency | Final rule | Jul 3, 2025 |
National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review: Interim Final Rule 2025-12407 | Environmental Protection Agency | Final rule | Jul 3, 2025 |
National Volatile Organic Compound Emission Standards for Aerosol Coatings: Interim Final Rule 2025-12323 | Environmental Protection Agency | Final rule | Jul 2, 2025 |
Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Other Solid Waste Incineration Units Review 2025-11446 | Environmental Protection Agency | Final rule | Jun 30, 2025 |
Air Plan Approval; Missouri; Control of Sulfur Dioxide Emissions and Approval and Promulgation of State Plan (Negative Declaration) for Designated Facilities and Pollutants 2025-11825 | Environmental Protection Agency | Proposed rule | Jun 27, 2025 |
Air Plan Approval; Idaho; Update to Materials Incorporated by Reference 2025-11824 | Environmental Protection Agency | Final rule | Jun 27, 2025 |
Air Plan Approval; Missouri; Definitions and Common Reference Tables 2025-11821 | Environmental Protection Agency | Proposed rule | Jun 27, 2025 |
Air Plan Approval; California; San Joaquin Valley 1-Hour Ozone Area; Maintenance Plan and Redesignation Request 2025-11413 | Environmental Protection Agency | Proposed rule | Jun 23, 2025 |