| Proposed Regulations |
40 CFR 51 - Air Quality: Revision to the Regulatory Definition of Volatile Organic Compounds - Exclusion of (Z)-1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd(Z))
| 11/12/2024 | National |
| Proposed Regulations |
40 CFR 52 - Air Plan Disapproval; Louisiana; Removal of Excess Emissions Provisions; Correction
| 11/08/2024 | National |
| Final Regulations |
40 CFR 52 - Approval and Promulgation of Air Quality Implementation Plans; New Hampshire; Regional Haze State Implementation Plan for the Second Implementation Period
| 11/07/2024 | National |
| Final Regulations |
40 CFR 52 and 97 - Federal ``Good Neighbor Plan'' for the 2015 Ozone National Ambient Air Quality Standards; Response to Judicial Stay
| 11/06/2024 | National |
| Notices |
Notification of a Public Meeting of the Clean Air Scientific Advisory Committee Lead Panel
| 11/06/2024 | National |
| Proposed Regulations |
40 CFR 52 - Air Quality State Implementation Plans; Partial Approval, Partial Disapproval and Promulgation; Texas; Regional Haze; Extension of Comment Period
| 11/01/2024 | National |
| Final Regulations |
40 CFR 1, 21, 59, 60, 61, 63, 65, 147, 374, 707, and 763 - Regional Office Address
| 10/31/2024 | National |
| Final Regulations |
40 CFR 52 - Air Plan Approval; Forsyth County, North Carolina; Removal of Excess Emissions Provisions
| 10/31/2024 | National |
| Proposed Regulations |
40 CFR 52 - Air Plan Approval; KY; Revisions to Jefferson County Control of Open Burning
| 10/31/2024 | National |
| Final Regulations |
40 CFR 52 - Air Plan Approval; Mississippi; PSD and Air Quality Modeling Infrastructure Requirements for the 2015 8-Hour Ozone National Ambient Air Quality Standards
| 10/31/2024 | National |
| Proposed Regulations |
40 CFR 52 - Air Plan Approval; Revisions to Colorado Common Provisions Regulation
| 10/30/2024 | National |
| Final Regulations |
40 CFR 55 - Outer Continental Shelf Air Regulations Update To Include New Jersey State Requirements
| 10/30/2024 | National |
| Proposed Regulations |
40 CFR Part 52 - Conditional Approval; Contingency Measure State Implementation Plan for the 2008 Ozone Standard; San Joaquin Valley, California
| 10/25/2024 | National |
| Final Regulations |
40 CFR Part 52 - Interim Final Determination To Stay or Defer Sanctions; California; San Joaquin Valley Unified Air Pollution Control District
| 10/25/2024 | National |
| Notices |
Announcing Upcoming Meeting of Mobile Sources Technical Review Subcommittee
| 10/25/2024 | National |
| Notices |
Environmental Impact Statements; Notice of Availability
| 10/25/2024 | National |
| Proposed Regulations |
40 CFR Part 52 - Air Plan Approval; Washington; Olympic Region Clean Air Agency, Recreational Fires
| 10/24/2024 | National |
| Final Regulations |
40 CFR 51 and 52 - Prevention of Significant Deterioration (PSD): Paragraph Designation Corrections
| 10/22/2024 | National |
| Final Regulations |
40 CFR 52 - Approval and Promulgation of Air Quality Implementation Plan; Delaware; Regional Haze State Implementation Plan for the Second Implementation Period
| 10/22/2024 | National |
| Final Regulations |
40 CFR 63 - Removal of Affirmative Defense Provisions from the NESHAP for the Oil and Natural Gas Production Facility and Natural Gas Transmission and Storage Facility Source Categories
| 10/22/2024 | National |
| Notices |
Access by U.S. Environmental Protection Agency (EPA) Contractor and Subcontractors to Confidential Business Information (CBI) Submitted Under Clean Air Act (CAA)
| 10/16/2024 | National |
| Proposed Regulations |
40 CFR 52 - Air Plan Approval; Montana; Missoula, Montana Oxygenated Fuels Program Removal, Carbon Monoxide, Limited Maintenance Plan
| 10/15/2024 | National |
| Proposed Regulations |
40 CFR 52 - Air Quality State Implementation Plans; Partial Approval, Partial Disapproval and Promulgation; Texas; Regional Haze; Proposed Rule
| 10/15/2024 | National |
| Proposed Regulations |
40 CFR Part 52 - Revisions to the Federal Implementation Plan for the Billings/Laurel, Montana, Sulfur Dioxide Area
| 10/15/2024 | National |
| Final Regulations |
40 CFR 52 - Air Plan Approval; New Mexico; Periodic Emission Inventory SIP for Sunland Park Nonattainment Area for 2015 Ozone NAAQS
| 10/11/2024 | National |
| Proposed Regulations |
40 CFR 52 - Air Plan Approval; Texas; Vehicle Inspection and Maintenance Plan for Bexar County
| 10/11/2024 | National |
| Final Regulations |
40 CFR 52 - Air Plan Approvals; Arizona; California; Correcting Amendments
| 10/11/2024 | National |
| Final Regulations |
40 CFR 62 - Approval and Promulgation of State Plans (Negative Declarations) for Designated Facilities and Pollutants: Maine and Massachusetts
| 10/11/2024 | National |
| Proposed Regulations |
40 CFR 62 - Approval and Promulgation of State Plans (Negative Declarations) for Designated Facilities and Pollutants: Maine and Massachusetts
| 10/11/2024 | National |
| Final Regulations |
40 CFR 82 - Protection of Stratospheric Ozone: Updates Related to the Use of Ozone-Depleting Substances as Process Agents; Final Rule
| 10/10/2024 | National |
| Notices |
Notice of Pending Approval for Other Use of Phosphogypsum
| 10/09/2024 | National |
| Final Regulations |
40 CFR 52 - Air Plan Approval; OR; Regional Haze Plan for the Second Implementation Period
| 10/08/2024 | National |
| Proposed Regulations |
40 CFR 52 and 81 - Air Plan Approval; Illinois; Alton Township 2010 Sulfur Dioxide Redesignation and Maintenance Plan
| 10/08/2024 | National |
| Final Regulations |
40 CFR 52 - Air Plan Approval; Ohio; Greif Packaging LLC
| 10/07/2024 | National |
| Proposed Regulations |
40 CFR 52 - Air Plan Approval; Ohio; Volatile Organic Compounds
| 10/07/2024 | National |
| Notices |
Request for Nominations to the EPA Clean Air Scientific Advisory Committee (CASAC)
| 10/07/2024 | National |
| Proposed Regulations |
40 CFR 51 - State Implementation Plan Submittal Deadlines and Implementation Requirements for Reclassified Nonattainment Areas Under the Ozone National Ambient Air Quality Standards
| 10/04/2024 | National |
| Final Regulations |
40 CFR 52 - Air Plan Approval; District of Columbia, Maryland, and Virginia; Update of the Motor Vehicle Emissions Budgets for the Washington-MD-VA 2008 8-Hour Ozone National Ambient Air Quality Standard Maintenance Area
| 10/04/2024 | National |
| Final Regulations |
40 CFR 52 - Clean Air Plans; Contingency Measures for the Fine Particulate Matter Standards; San Joaquin Valley, California
| 10/04/2024 | National |
| Final Regulations |
40 CFR 52 - Air Plan Approval; Illinois; NAAQS Update
| 10/03/2024 | National |