Air Plan Approval; GA; Removal of Nonattainment Area New Source Review
2026-20636 | Environmental Protection Agency | Final rule | Oct 8 |
Air Plan Approval; Missouri; Construction Permit Exemptions
2026-20634 | Environmental Protection Agency | Final rule | Oct 8 |
Air Plan Approval; OR; Lane County Title 36 Rule
2026-20101 | Environmental Protection Agency | Proposed rule | Oct 1 |
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 |
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 |
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 |
Air Plan Approval; Mississippi; 2010 1-Hour SO2 NAAQS Transport Infrastructure
2026-17503 | 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; 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; SC; Department Name Change
2026-16990 | Environmental Protection Agency | Final rule | Aug 20 |
Air Plan Approval; South Carolina; Minor Source Permit Program Revisions
2026-16930 | Environmental Protection Agency | Proposed rule | Aug 19 |
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; New Hampshire; Repeal of Motor Vehicle Inspection and Maintenance Program
2026-16330 | Environmental Protection Agency | Proposed rule | Aug 11 |
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; 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 |
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; 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 |
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 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; 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 |
Air Plan Approval; OR; Update to Materials Incorporated by Reference
2026-12415 | Environmental Protection Agency | Final rule | Jun 22 |
Approval and Promulgation of Air Quality Implementation Plans; Wyoming; Regional Haze Federal Implementation Plan
2026-11436 | Environmental Protection Agency | Proposed rule | Jun 8 |
Clean Air Act Title V Operating Permit Program Revision; District of Columbia
2026-11170 | Environmental Protection Agency | Final rule | Jun 4 |
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 |
Air Plan Approval; Montana; Revisions to Western Sugar Stipulation
2026-09619 | Environmental Protection Agency | Final rule | May 14 |
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 |
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; Missouri; Construction Permits Required
2026-07884 | Environmental Protection Agency | Final rule | Apr 23 |
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 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 |
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; Ohio; Ohio Permit Rules Revisions
2026-06398 | 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 Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision
2026-06384 | Environmental Protection Agency | Final rule | Apr 2 |
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 |
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 |
Air Plan Approval; OR; Klamath Falls PM2.5 Redesignation to Attainment and Maintenance Plan
2026-04333 | Environmental Protection Agency | Proposed 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; Missouri; Reporting Emission Data, Emission Fees, and Process Information
2026-03888 | Environmental Protection Agency | Final rule | Feb 26 |
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; OR; Lane County Permitting Rule Revisions
2026-01735 | Environmental Protection Agency | Final 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; Montana; Revisions to Western Sugar Stipulation
2026-01324 | Environmental Protection Agency | Proposed rule | Jan 23 |
Air Plan Approval; Ohio; Ohio Permit Rules Revisions
2026-00258 | Environmental Protection Agency | Proposed rule | Jan 9 |
Air Plan Approval; New Hampshire; Updates to Materials Incorporated by Reference
2026-00249 | 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; Colorado; Revisions to Colorado Procedural Rules and Common Provisions Regulation
2025-24141 | Environmental Protection Agency | Final rule | Jan 2 |
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; Connecticut; Plan Submittals for the 2008 Ozone National Ambient Air Quality Standard
2025-22595 | Environmental Protection Agency | Final rule | Dec 11, 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 |
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 |
Air Plan Approval; Minnesota; Exempt Source SIP Revision
2025-20492 | Environmental Protection Agency | Final 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 |
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; District of Columbia; Creation of Synthetic Minor Permit Program
2025-20416 | 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 |
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; 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; 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; 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; 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 |
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 |
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; North Carolina; Revisions to Regulations for Sulfur Dioxide Emissions From Combustion Sources
2025-19225 | Environmental Protection Agency | Final rule | Oct 2, 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 |
Air Plan Approval; Oregon; 2024 Vehicle Inspection Program Updates
2025-18629 | Environmental Protection Agency | Proposed 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; Missouri; Definitions and Common Reference Tables
2025-18568 | Environmental Protection Agency | Final rule | Sep 25, 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 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; 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 |
Air Plan Approval; GA; Removal of Nonattainment Area New Source Review
2025-16723 | Environmental Protection Agency | Proposed rule | Sep 2, 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; WA; Update to Materials Incorporated by Reference
2025-15992 | 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; North Carolina; Removal of Emissions Exemptions
2025-15557 | Environmental Protection Agency | Proposed rule | Aug 15, 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; 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; Wyoming; Revisions to Regional Haze State Implementation Plan
2025-14983 | Environmental Protection Agency | Final 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; Rhode Island; Amendments to Motor Vehicle Inspection and Maintenance Program
2025-14105 | Environmental Protection Agency | Proposed rule | Jul 28, 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; 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 |
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 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 |
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; 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; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer
2025-12798 | Environmental Protection Agency | Final rule | Jul 10, 2025 |
Reconsideration of the Dust-Lead Hazard Standards and Dust-Lead Post-Abatement Clearance Levels; Correction
2025-12726 | Environmental Protection Agency | Final rule | Jul 9, 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 |
Air Plan Approval; California; Revised Format for Nonregulatory Provisions
2025-12586 | Environmental Protection Agency | Final rule | Jul 7, 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; Colorado; Interim Final Determination to Stay and Defer Sanctions in the Denver Metro/North Front Range 2008 Ozone Nonattainment Area
2025-11266 | Environmental Protection Agency | Final rule | Jun 18, 2025 |
Air Plan Approval; Colorado; Serious Attainment Plan RACT Requirements for the 2008 8-Hour Ozone National Ambient Air Quality Standards for the Denver Metro/North Front Range Nonattainment Area
2025-11263 | Environmental Protection Agency | Proposed rule | Jun 18, 2025 |
Air Plan Approval; West Virginia; 2024 Amendments to West Virginia's Ambient Air Quality Standards
2025-10548 | Environmental Protection Agency | Proposed rule | Jun 11, 2025 |
Air Plan Approval; California; Revised Format for Materials Incorporated by Reference
2025-10000 | Environmental Protection Agency | Final rule | Jun 4, 2025 |
Air Plan Approval; IA; Alter Metal Recycling Permit Modification
2025-10038 | Environmental Protection Agency | Proposed rule | Jun 3, 2025 |
Air Plan Approval; Oregon; Lane Regional Air Protection Agency, Outdoor Burning
2025-09324 | Environmental Protection Agency | Proposed rule | May 23, 2025 |
Air Plan Approval; Texas; New Source Review Updates for Project Emissions Accounting
2025-08734 | Environmental Protection Agency | Final rule | May 19, 2025 |
Air Plan Approval; South Dakota; Regional Haze Plan for the Second Implementation Period
2025-08072 | Environmental Protection Agency | Proposed rule | May 14, 2025 |
Air Plan Approval; WA; Southwest Clean Air Agency; Revisions to Excess Emissions, Startup, Shutdown, and General Requirements
2025-07846 | Environmental Protection Agency | Final rule | May 9, 2025 |
Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer
2025-08074 | Environmental Protection Agency | Proposed rule | May 8, 2025 |
Air Plan Approval; Colorado; Interim Final Determination To Stay and Defer Sanctions in the Denver Metro/North Front Range 2008 Ozone Nonattainment Area
2025-07938 | Environmental Protection Agency | Final rule | May 8, 2025 |
Air Plan Approval; Colorado; Serious Attainment Plan Contingency Measures for the 2008 8-Hour Ozone National Ambient Air Quality Standards for the Denver Metro/North Front Range Nonattainment Area
2025-07937 | Environmental Protection Agency | Proposed rule | May 8, 2025 |
Air Plan Approval; Kansas; Annual Emission Inventory and Fees
2025-07261 | Environmental Protection Agency | Final rule | Apr 28, 2025 |
Air Plan Approval; Pennsylvania; Redesignation of the Allegheny County Nonattainment Area to Attainment and Approval of the Area's Maintenance Plan for the 2010 1-Hour Primary Sulfur Dioxide National Ambient Air Quality Standard
2025-07255 | Environmental Protection Agency | Final rule | Apr 28, 2025 |
Air Plan Approval; Wisconsin; Revised Format for Materials Incorporated by Reference
2025-06618 | Environmental Protection Agency | Final rule | Apr 22, 2025 |
Air Plan Approval; Washington; Spokane Regional Clean Air Agency, General Air Quality Regulations
2025-06247 | Environmental Protection Agency | Final rule | Apr 16, 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
2025-05921 | Environmental Protection Agency | Proposed rule | Apr 7, 2025 |
Air Plan Approval; Florida; Revisions to Stationary Sources-Removal of Clean Air Interstate Rule Provisions
2025-05382 | Environmental Protection Agency | Proposed rule | Mar 28, 2025 |
Air Plan Approval; AK, Fairbanks North Star Borough; 2006 24-Hour PM2.5 Serious Area and 189(d) Plan
2025-04908 | Environmental Protection Agency | Proposed rule | Mar 24, 2025 |
Air Plan Disapproval; West Virginia; Regional Haze State Implementation Plan for the Second Implementation Period
2025-01101 | Environmental Protection Agency | Proposed rule | Jan 21, 2025 |
Air Plan Approval; Ohio; Withdrawal of Technical Amendment
2025-00968 | Environmental Protection Agency | Final rule | Jan 21, 2025 |
Air Plan Partial Approval and Partial Disapproval; South Carolina; Minor Source Permit Program Revisions
2025-00438 | Environmental Protection Agency | Proposed rule | Jan 21, 2025 |
Air Plan Approval; AK; Updates to Materials Incorporated by Reference
2025-01120 | Environmental Protection Agency | Final rule | Jan 17, 2025 |
Air Plan Approval; Washington; Olympic Region Clean Air Agency, Recreational Fires
2025-00559 | Environmental Protection Agency | Final rule | Jan 17, 2025 |
Revisions to the Federal Implementation Plan for the Billings/Laurel, Montana, Sulfur Dioxide Area
2025-00220 | Environmental Protection Agency | Final rule | Jan 17, 2025 |
Air Plan Approval; Montana; Missoula, Montana Oxygenated Fuels Program Removal, Carbon Monoxide, Limited Maintenance Plan
2025-00380 | Environmental Protection Agency | Final rule | Jan 16, 2025 |
Air Plan Approval; Kansas; Annual Emission Inventory and Fees
2024-31626 | Environmental Protection Agency | Proposed rule | Jan 15, 2025 |
Interim Final Determination To Defer Sanctions; AK, Fairbanks North Star Borough
2024-30649 | Environmental Protection Agency | Final rule | Jan 8, 2025 |
Air Plan Approval; AK, Fairbanks North Star Borough; 2006 24-Hour PM2.5 Serious Area and 189(d) Plan
2024-30648 | Environmental Protection Agency | Proposed rule | Jan 8, 2025 |
Outer Continental Shelf Air Regulations; Amendment to State Requirements Incorporated by Reference; Massachusetts
2024-30800 | Environmental Protection Agency | Final rule | Dec 27, 2024 |
Air Plan Approval; KY; Revisions to Jefferson County Control of Open Burning
2024-30741 | Environmental Protection Agency | Final rule | Dec 27, 2024 |
Air Plan Approval; Indiana; Update to CFR References
2024-30729 | Environmental Protection Agency | Final rule | Dec 27, 2024 |
Air Plan Approval; Revisions to Colorado Common Provisions Regulation
2024-30695 | Environmental Protection Agency | Final rule | Dec 27, 2024 |
Air Plan Approval; WA; Excess Emissions, Startup, Shutdown, and Malfunction Revisions, Energy Facility Site Evaluation Council
2024-30536 | Environmental Protection Agency | Final rule | Dec 27, 2024 |
Air Plan Approval; Georgia; Update to Materials Incorporated by Reference
2024-30253 | Environmental Protection Agency | Final rule | Dec 20, 2024 |
Air Plan Disapproval; Texas; Control of Air Pollution From Visible Emissions and Particulate Matter
2024-29956 | Environmental Protection Agency | Final rule | Dec 20, 2024 |
Air Plan Approval; Pennsylvania; Redesignation of the Allegheny County Nonattainment Area to Attainment and Approval of the Area's Maintenance Plan for the 2010 1-Hour Primary Sulfur Dioxide National Ambient Air Quality Standard
2024-28536 | Environmental Protection Agency | Proposed rule | Dec 11, 2024 |
Air Plan Approval; WA; Southwest Clean Air Agency; Revisions to Excess Emissions, Startup, Shutdown, and General Requirements
2024-28804 | Environmental Protection Agency | Proposed rule | Dec 10, 2024 |
Air Plan Approval; ID; Revisions to Air Quality Regulations
2024-28364 | Environmental Protection Agency | Final rule | Dec 5, 2024 |
Air Plan Partial Approval and Partial Disapproval; Wyoming; Regional Haze Plan for the Second Implementation Period
2024-27942 | Environmental Protection Agency | Final rule | Dec 2, 2024 |
Air Plan Partial Approval and Partial Disapproval; Utah; Regional Haze State Implementation Plan for the Second Implementation Period; Air Plan Disapproval; Utah; Prong 4 (Visibility) for the 2015 8-Hour Ozone National Ambient Air Quality Standard
2024-27941 | Environmental Protection Agency | Final rule | Dec 2, 2024 |
Air Plan Partial Approval and Partial Disapproval; North Dakota; Regional Haze State Implementation Plan for the Second Implementation Period
2024-27940 | Environmental Protection Agency | Final rule | Dec 2, 2024 |
Guideline on Air Quality Models; Enhancements to the AERMOD Dispersion Modeling System
2024-27636 | Environmental Protection Agency | Final rule | Nov 29, 2024 |
Air Plan Approval; Shelby County, Tennessee; Revisions to Startup, Shutdown, and Malfunction Rules
2024-26928 | Environmental Protection Agency | Final rule | Nov 20, 2024 |
Air Plan Approval; ID; Update to Materials Incorporated by Reference
2024-26506 | Environmental Protection Agency | Final rule | Nov 18, 2024 |
Air Plan Approval; Washington; Spokane Regional Clean Air Agency, General Air Quality Regulations
2024-26171 | Environmental Protection Agency | Proposed rule | Nov 14, 2024 |
Reconsideration of the Dust-Lead Hazard Standards and Dust-Lead Post-Abatement Clearance Levels
2024-25070 | Environmental Protection Agency | Final rule | Nov 12, 2024 |
Inflation Adjustment References for Civil Monetary Penalty Amounts in Title 40 of the Code of Federal Regulations
2024-25669 | Environmental Protection Agency | Final rule | Nov 8, 2024 |
Approval and Promulgation of Air Quality Implementation Plans; New Hampshire; Regional Haze State Implementation Plan for the Second Implementation Period
2024-25679 | Environmental Protection Agency | Final rule | Nov 7, 2024 |
Air Plan Approval; Forsyth County, North Carolina; Removal of Excess Emissions Provisions
2024-25392 | Environmental Protection Agency | Final rule | Oct 31, 2024 |
Air Plan Approval; KY; Revisions to Jefferson County Control of Open Burning
2024-25244 | Environmental Protection Agency | Proposed rule | Oct 31, 2024 |
Air Plan Approval; Revisions to Colorado Common Provisions Regulation
2024-25228 | Environmental Protection Agency | Proposed rule | Oct 30, 2024 |
National Primary Drinking Water Regulations for Lead and Copper: Improvements (LCRI)
2024-23549 | Environmental Protection Agency | Final rule | Oct 30, 2024 |
Air Plan Approval; Wisconsin; SIP Alignment Revision
2024-25032 | Environmental Protection Agency | Final rule | Oct 29, 2024 |
Air Plan Approval; Washington; Olympic Region Clean Air Agency, Recreational Fires
2024-24714 | Environmental Protection Agency | Proposed rule | Oct 24, 2024 |
Air Plan Approval; WA; Excess Emissions, Startup, Shutdown, and Malfunction Revisions, Energy Facility Site Evaluation Council
2024-24211 | Environmental Protection Agency | Proposed rule | Oct 22, 2024 |
Air Plan Approval; Montana; Missoula, Montana Oxygenated Fuels Program Removal, Carbon Monoxide, Limited Maintenance Plan
2024-23589 | Environmental Protection Agency | Proposed rule | Oct 15, 2024 |
Revisions to the Federal Implementation Plan for the Billings/Laurel, Montana, Sulfur Dioxide Area
2024-23568 | Environmental Protection Agency | Proposed rule | Oct 15, 2024 |
Air Plan Approval; Texas; New Source Review Updates for Project Emissions Accounting
2024-23282 | Environmental Protection Agency | Proposed rule | Oct 11, 2024 |
Air Plan Approval; OR; Regional Haze Plan for the Second Implementation Period
2024-22603 | Environmental Protection Agency | Final rule | Oct 8, 2024 |
Air Plan Approval; FL; Surface Coating of Miscellaneous Metal Parts and Products Amendments
2024-22135 | Environmental Protection Agency | Final rule | Sep 27, 2024 |
Air Plan Approval; Montana; Missoula, Montana, Air Rule Revisions
2024-20997 | Environmental Protection Agency | Proposed rule | Sep 17, 2024 |
Air Plan Approval; New Hampshire; Ambient Air Quality Standards
2024-20721 | Environmental Protection Agency | Final rule | Sep 13, 2024 |
Air Plan Approval; Shelby County, Tennessee; Revisions To Startup, Shutdown, and Malfunction Rules
2024-20669 | Environmental Protection Agency | Proposed rule | Sep 12, 2024 |
Air Plan Approval; Forsyth County, North Carolina; Removal of Excess Emissions Provisions
2024-20666 | Environmental Protection Agency | Proposed rule | Sep 12, 2024 |
Outer Continental Shelf Air Regulations; Amendment to State Requirements Incorporated; Massachusetts
2024-20119 | Environmental Protection Agency | Proposed rule | Sep 11, 2024 |
Air Plan Disapproval; Texas; Control of Air Pollution From Visible Emissions and Particulate Matter
2024-19600 | Environmental Protection Agency | Proposed rule | Sep 3, 2024 |
Air Plan Partial Approval and Partial Disapproval; Utah; Regional Haze State Implementation Plan for the Second Implementation Period; Air Plan Disapproval; Utah; Interstate Transport of Air Pollution for the 2015 8-Hour Ozone National Ambient Air Quality Standards
2024-18462 | Environmental Protection Agency | Proposed rule | Aug 19, 2024 |
Air Plan Approval; WA; Update to Materials Incorporated by Reference
2024-16953 | Environmental Protection Agency | Final rule | Aug 19, 2024 |
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
2024-18161 | Environmental Protection Agency | Proposed rule | Aug 16, 2024 |
Air Plan Approval; Indiana; Update to CFR References
2024-17913 | Environmental Protection Agency | Proposed rule | Aug 16, 2024 |
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
2024-17471 | Environmental Protection Agency | Proposed rule | Aug 14, 2024 |
Air Plan Approval; Kansas; Regional Haze
2024-17182 | Environmental Protection Agency | Final rule | Aug 7, 2024 |
Air Plan Approval and Conditional Approval; Colorado; Regulation Numbers 7 and 21 and RACT Requirements for the 2008 8-Hour Ozone Standard for the Denver Metro/North Front Range Nonattainment Area
2024-17091 | Environmental Protection Agency | Proposed rule | Aug 6, 2024 |
Air Plan Partial Approval and Partial Disapproval; Wyoming; Regional Haze Plan for the Second Implementation Period
2024-16718 | Environmental Protection Agency | Proposed rule | Aug 1, 2024 |
Clean Air Act Title V Operating Permit Program Revision; West Virginia
2024-16568 | Environmental Protection Agency | Final rule | Jul 30, 2024 |
Air Plan Approval; FL; Surface Coating of Miscellaneous Metal Parts and Products Amendments
2024-16542 | Environmental Protection Agency | Proposed rule | Jul 30, 2024 |
Clean Air Act Reclassification; Colorado; Reclassification of the Denver Metro/North Front Range 2015 Ozone Nonattainment Area to Serious
2024-16123 | Environmental Protection Agency | Final rule | Jul 24, 2024 |
Air Plan Approval; OR; Permitting Rule Revisions
2024-15748 | Environmental Protection Agency | Final rule | Jul 23, 2024 |
Air Plan Approval; Colorado; 2017 Base Year Inventory and Emission Statement Rule Marginal Nonattainment Requirements, Revisions to Regulation 3
2024-15953 | Environmental Protection Agency | Final rule | Jul 22, 2024 |
Air Plan Approval; GA; Revisions to the State Implementation Plan Gasoline Transport Vehicles and Vapor Collection Systems Rule
2024-15397 | Environmental Protection Agency | Final rule | Jul 16, 2024 |
Air Plan Approval; Connecticut; Low Emissions Vehicles Program
2024-15225 | Environmental Protection Agency | Final rule | Jul 15, 2024 |
Air Plan Approval; New Hampshire; Ambient Air Quality Standards
2024-14990 | Environmental Protection Agency | Proposed rule | Jul 11, 2024 |
Air Plan Partial Approval and Partial Disapproval; North Dakota; Regional Haze State Implementation Plan for the Second Implementation Period
2024-14761 | Environmental Protection Agency | Proposed rule | Jul 10, 2024 |
Approval and Promulgation of Air Quality Implementation Plans; Massachusetts; Regional Haze State Implementation Plan for the Second Implementation Period
2024-14632 | Environmental Protection Agency | Final rule | Jul 8, 2024 |
Air Plan Approval; Connecticut; Source Monitoring, Record Keeping and Reporting
2024-14620 | Environmental Protection Agency | Final rule | Jul 8, 2024 |
Air Plan Partial Approval and Partial Disapproval; Missouri; Regional Haze
2024-14612 | Environmental Protection Agency | Proposed rule | Jul 3, 2024 |
Air Plan Approval; State of Utah; Utah State Implementation Plan Revisions
2024-14136 | Environmental Protection Agency | Final rule | Jul 1, 2024 |
Air Plan Approval; Iowa; Linn County Ordinances
2024-14119 | Environmental Protection Agency | Final rule | Jul 1, 2024 |
National Primary Drinking Water Regulations: Consumer Confidence Reports
2024-10919 | Environmental Protection Agency | Final rule | May 24, 2024 |
Air Plan Approval; GA; Revisions to the State Implementation Plan Gasoline Transport Vehicles and Vapor Collection System Rule
2024-10713 | Environmental Protection Agency | Proposed rule | May 17, 2024 |
Air Plan Approval; Wisconsin; SIP Alignment Revision
2024-10539 | Environmental Protection Agency | Proposed rule | May 16, 2024 |
Air Plan Approval; KY; Revisions to Jefferson County Definitions
2024-09730 | Environmental Protection Agency | Final rule | May 13, 2024 |
Air Plan Approval; New Hampshire; Amendments to Motor Vehicle Inspection and Maintenance Program Regulation
2024-08928 | Environmental Protection Agency | Final rule | Apr 29, 2024 |
Air Plan Approval; Michigan; Revisions to Part 1 and 2 Rules
2024-08798 | Environmental Protection Agency | Proposed rule | Apr 25, 2024 |
Air Plan Approval; IA; Linn County Ordinances
2024-08283 | Environmental Protection Agency | Proposed rule | Apr 18, 2024 |
Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen, Oxides of Sulfur, and Particulate Matter
2024-07397 · significant | Environmental Protection Agency | Proposed rule | Apr 15, 2024 |
Air Plan Approval; Georgia; Gasoline Dispensing Facilities
2024-07703 | Environmental Protection Agency | Proposed rule | Apr 12, 2024 |
Air Plan Approval; Colorado; 2017 Base Year Inventory and Emission Statement Rule Marginal Nonattainment Requirements, Revisions to Regulation 3
2024-07584 | Environmental Protection Agency | Proposed rule | Apr 10, 2024 |
Air Plan Approval; Wyoming; Revisions to Regional Haze State Implementation Plan
2024-07414 | Environmental Protection Agency | Proposed rule | Apr 10, 2024 |
Approval and Promulgation of Air Quality Implementation Plan; Maryland; Regional Haze State Implementation Plan for the Second Implementation Period
2024-06415 | Environmental Protection Agency | Final rule | Apr 1, 2024 |
Clean Air Act Title V Operating Permit Program Revision; West Virginia
2024-05894 | Environmental Protection Agency | Proposed rule | Mar 21, 2024 |
Air Plan Approval; New Hampshire; Single Source Order for PAK Solutions
2024-05072 | Environmental Protection Agency | Final rule | Mar 11, 2024 |
Air Plan Approval; KY; Revisions to Jefferson County Definitions
2024-04773 | Environmental Protection Agency | Proposed rule | Mar 7, 2024 |
Reconsideration of the National Ambient Air Quality Standards for Particulate Matter
2024-02637 | Environmental Protection Agency | Final rule | Mar 6, 2024 |
Air Plan Approval; Oklahoma; Updates to the State Implementation Plan Incorporation by Reference Provisions
2024-04103 | Environmental Protection Agency | Final rule | Mar 1, 2024 |
Air Plan Approval; Connecticut; Source Monitoring, Record Keeping and Reporting
2024-04133 | Environmental Protection Agency | Proposed rule | Feb 29, 2024 |
Air Plan Approval; Ohio; Withdrawal of Technical Amendment
2024-03555 | Environmental Protection Agency | Proposed rule | Feb 22, 2024 |
Air Plan Approval and Operating Permit Program Approval; Connecticut; Revision to Definitions
2024-02700 | Environmental Protection Agency | Final rule | Feb 12, 2024 |
Air Plan Approval; GA; Miscellaneous Rule Revision
2024-02321 | Environmental Protection Agency | Final rule | Feb 6, 2024 |
Air Plan Approval; New Hampshire; Amendments to Motor Vehicle Inspection and Maintenance Program Regulation
2024-01937 | Environmental Protection Agency | Proposed rule | Jan 31, 2024 |
Outer Continental Shelf Air Regulations; Consistency Update for Maryland
2023-28839 | Environmental Protection Agency | Final rule | Jan 4, 2024 |
Air Plan Disapproval; Kansas; Regional Haze
2023-28384 | Environmental Protection Agency | Proposed rule | Jan 2, 2024 |