Federal Register
540 documents (filtered)
Proposed Rule
2025-15460
Air Plan Approval; North Carolina; Revisions to Regulations for Sulfur Dioxide Emissions F...
Environmental Protection Agency
CFR: 40 CFR 52
Aug 14, 2025
Proposed Rule
2025-15459
Air Plan Approval; Rhode Island; Decommissioning of Stage II Vapor Recovery Systems
Environmental Protection Agency
CFR: 40 CFR 52
Aug 14, 2025
Proposed Rule
2025-15183
North Dakota: Approval of State Coal Combustion Residuals Permit Program; Reopening of Com...
Environmental Protection Agency
CFR: 40 CFR 257
Aug 11, 2025
Eff: May 16, 2025
Proposed Rule
2025-15095
Fenoxaprop-Ethyl, Flufenpyr-Ethyl, Imazapyr, Maleic Hydrazide, Pyrazon, Quinclorac, Triflu...
Environmental Protection Agency
CFR: 40 CFR 180
Aug 8, 2025
Proposed Rule
2025-14989
Air Plan Approval; Ohio; Carmeuse Lime, Inc. SO2
Environmental Protection Agency
CFR: 40 CFR 52
Aug 7, 2025
Proposed Rule
2025-14980
Air Plan Approval; State of Kansas; Attainment Redesignation for the 2008 Lead NAAQS and A...
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 81
Aug 7, 2025
Proposed Rule
2025-14982
Air Plan Approval; Colorado; Inspection and Maintenance Program Revision
Environmental Protection Agency
CFR: 40 CFR 52
Aug 7, 2025
Proposed Rule
2025-14572
Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards
Environmental Protection Agency
CFR: 40 CFR 85, 40 CFR 86
Aug 1, 2025
Proposed Rule
2025-14555
Public Hearing for Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle...
Environmental Protection Agency
CFR: 40 CFR 85, 40 CFR 86
Aug 1, 2025
Proposed Rule
2025-14470
Air Plan Approval; New Jersey; Northern New Jersey and Southern New Jersey Counties' Secon...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 31, 2025
Proposed Rule
2025-14476
Air Plan Approval; South Carolina; Second Planning Period Regional Haze Plan
Environmental Protection Agency
CFR: 40 CFR 52
Jul 31, 2025
Proposed Rule
2025-14528
Air Plan Approval; California; South Coast Air Quality Management District
Environmental Protection Agency
CFR: 40 CFR 52
Jul 31, 2025
Proposed Rule
2025-14105
Air Plan Approval; Rhode Island; Amendments to Motor Vehicle Inspection and Maintenance Pr...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 28, 2025
Air Plan Approval; New York; Ortho Clinical Diagnostics
Environmental Protection Agency
CFR: 40 CFR 52
Jul 24, 2025
Proposed Rule
2025-13906
Air Plan Revisions; California; Mojave Desert Air Quality Management District; New Source ...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 24, 2025
Proposed Rule
2025-13957
Air Plan Approval; Washington; Regional Haze State Implementation Plan for the Second Impl...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 24, 2025
Proposed Rule
2025-13930
Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 24, 2025
Proposed Rule
2025-13946
Air Plan Approval; Pennsylvania; Redesignation of the Beaver County Nonattainment Area to ...
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 81
Jul 24, 2025
Proposed Rule
2025-13904
Air Plan Approval; Texas; Reasonably Available Control Technology in the Houston-Galveston...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 24, 2025
Proposed Rule
2025-13697
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From El...
Environmental Protection Agency
CFR: 40 CFR 257
Jul 22, 2025
Proposed Rule
2025-13598
Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR): ...
Environmental Protection Agency
CFR: 40 CFR 51, 40 CFR 52
Jul 21, 2025
Proposed Rule
2025-13335
Air Plan Approval; Guam; Base Year Emissions Inventory for the 2010 1-Hour Sulfur Dioxide ...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 16, 2025
Proposed Rule
2025-13343
Air Plan Approval; Ohio; Second Maintenance Plan for the Ohio Portion of the Campbell-Cler...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 16, 2025
Proposed Rule
2025-13337
Air Plan Approval; State of Utah; Utah PM2.5 State Implementation Plan Revisions
Environmental Protection Agency
CFR: 40 CFR 52
Jul 16, 2025
Proposed Rule
2025-13327
Air Plan Approval; Minnesota; Exempt Source SIP Revision
Environmental Protection Agency
CFR: 40 CFR 52
Jul 16, 2025
Air Plan Approval; Indiana; Regional Haze Plan for the Second Implementation Period; Exten...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 16, 2025
Eff: Jun 18, 2025
Determination of Attainment by the Attainment Date and Clean Data Determination; Californi...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 16, 2025
Proposed Rule
2025-13324
Air Plan Approval; Connecticut; State Implementation Plan Revisions Required as a Result o...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 16, 2025
Proposed Rule
2025-13341
Air Quality State Implementation Plans; Approval and Promulgations: Montana: Infrastructur...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 16, 2025
Air Plan Partial Approval and Partial Disapproval; Colorado; Regional Haze Plan for the Se...
Environmental Protection Agency
CFR: 40 CFR 52
Jul 16, 2025
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The Federal Register is the daily journal of the U.S. government. Proposed rules invite public comment before becoming law. Final rules have completed the comment process and are (or will become) legally binding. FRTracker extracts obligations from these documents—the specific things people or organizations must, may, or must not do.