Federal Register
675 documents (filtered)
Approval and Promulgation of Air Quality Implementation Plans; Nevada; Regional Haze State...
Environmental Protection Agency
CFR: 40 CFR 52
Feb 6, 2026
Eff: Mar 9, 2026
Air Plan Revisions; California; Heavy-Duty Vehicle Inspection and Maintenance Program
Environmental Protection Agency
CFR: 40 CFR 52
Feb 6, 2026
Eff: Mar 9, 2026
Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Poin...
Environmental Protection Agency
CFR: 40 CFR 423
Jan 30, 2026
Eff: Mar 2, 2026
Final Rule
2026-01902
Chlorate; Exemption From the Requirement of a Pesticide Tolerance
Environmental Protection Agency
CFR: 40 CFR 180
Jan 30, 2026
Eff: Jan 30, 2026
Final Rule
2026-01901
PDHP 68949; Exemption From the Requirement of a Tolerance
Environmental Protection Agency
CFR: 40 CFR 180
Jan 30, 2026
Eff: Jan 30, 2026
Air Plan Approval and Air Quality Designation; KY; Redesignation of the Kentucky Portion o...
Environmental Protection Agency
CFR: 40 CFR 81
Jan 29, 2026
Eff: Mar 2, 2026
Air Plan Approval; OR; Lane County Permitting Rule Revisions
Environmental Protection Agency
CFR: 40 CFR 52
Jan 29, 2026
Eff: Mar 2, 2026
Air Plan Approval; Pennsylvania; Motor Vehicle Inspection and Maintenance Program Certific...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 29, 2026
Eff: Mar 2, 2026
Determination of Attainment by the Attainment Date and Clean Data Determination; Californi...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 29, 2026
Eff: Mar 2, 2026
Final Rule
2026-01413
Air Plan Disapproval; Colorado; Regional Haze Plan for the Second Implementation Period
Environmental Protection Agency
CFR: 40 CFR 52
Jan 26, 2026
Eff: Feb 25, 2026
Final Rule
2026-01406
Air Plan Approval; Indiana; Regional Haze Plan for the Second Implementation Period
Environmental Protection Agency
CFR: 40 CFR 52
Jan 26, 2026
Eff: Feb 25, 2026
Final Rule
2026-01410
Air Plan Approval; Arkansas; Codification of the State Implementation Plan
Environmental Protection Agency
CFR: 40 CFR 52
Jan 26, 2026
Eff: Feb 25, 2026
Final Rule
2026-01408
Air Plan Approval; Oklahoma; Revisions to Air Pollution Control Rules
Environmental Protection Agency
CFR: 40 CFR 52
Jan 26, 2026
Eff: Feb 25, 2026
Air Plan Approval; Ohio; 2015 Ozone Moderate Reasonably Available Control Technology
Environmental Protection Agency
CFR: 40 CFR 52
Jan 20, 2026
Eff: Feb 19, 2026
New Source Performance Standards Review for Stationary Combustion Turbines and Stationary ...
Environmental Protection Agency
CFR: 40 CFR 60
Jan 15, 2026
Eff: Jan 15, 2026
Final Rule
2026-00545
Permethrin; Pesticide Tolerances
Environmental Protection Agency
CFR: 40 CFR 180
Jan 14, 2026
Eff: Jan 14, 2026
Final Rule
2026-00628
Pyriofenone; Pesticide Tolerances
Environmental Protection Agency
CFR: 40 CFR 180
Jan 14, 2026
Eff: Jan 14, 2026
Air Plan Approval; Indiana; Huntington County 2010 Sulfur Dioxide Redesignation and Mainte...
Environmental Protection Agency
CFR: 40 CFR 52, 40 CFR 81
Jan 9, 2026
Eff: Jan 9, 2026
Technical Amendments to the EPCRA Hazardous Chemical Inventory Reporting Requirements To C...
Environmental Protection Agency
CFR: 40 CFR 370
Jan 9, 2026
Eff: Jan 9, 2026
Final Rule
2026-00249
Air Plan Approval; New Hampshire; Updates to Materials Incorporated by Reference
Environmental Protection Agency
CFR: 40 CFR 52
Jan 9, 2026
Eff: Jan 9, 2026
Final Rule
2026-00253
Approval and Promulgation of Delegation of Authority for Designated Facilities and Polluta...
Environmental Protection Agency
CFR: 40 CFR 62
Jan 9, 2026
Eff: Jan 9, 2026
Air Plan Approval; New York; Ortho Clinical Diagnostics
Environmental Protection Agency
CFR: 40 CFR 52
Jan 9, 2026
Eff: Feb 9, 2026
Air Plan Approval; Kentucky; Emissions Inventory and Nonattainment New Source Review for t...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 8, 2026
Eff: Feb 9, 2026
Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Ou...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 8, 2026
Eff: Feb 9, 2026
Air Plan Approval; California; Mojave Desert Air Quality Management District; Definition o...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 8, 2026
Eff: Feb 9, 2026
Extension of the State Implementation Plan Due Date for the Regional Haze Third Implementa...
Environmental Protection Agency
CFR: 40 CFR 51
Jan 6, 2026
Eff: Mar 9, 2026
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Mic...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 6, 2026
Utah; Northern Wasatch Front; 2015 8-Hour Ozone Nonattainment Area Boundary Expansion and ...
Environmental Protection Agency
CFR: 40 CFR 81
Jan 6, 2026
Eff: Feb 5, 2026
Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District
Environmental Protection Agency
CFR: 40 CFR 52
Jan 6, 2026
Eff: Feb 5, 2026
Air Plan Revision; California; Placer County Air Pollution Control District; New Source Re...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 6, 2026
Eff: Feb 5, 2026
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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.