Federal Register
2,203 documents (filtered)
Clean Air Act Title V Operating Permit Program Revision; District of Columbia
Environmental Protection Agency
CFR: 40 CFR 70
Jan 8, 2026
Air Plan Approval; Missouri; Construction Permits Required
Environmental Protection Agency
CFR: 40 CFR 52
Jan 8, 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
Notice
2026-00136
Certain New Chemicals or Significant New Uses; Statements of Findings-October 2025
Environmental Protection Agency
Jan 8, 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; Kentucky; Emissions Inventory and Nonattainment New Source Review for t...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 8, 2026
Eff: Feb 9, 2026
Proposed Rule
2026-00084
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From El...
Environmental Protection Agency
CFR: 40 CFR 257
Jan 7, 2026
Proposed Rule
2026-00021
National Primary Drinking Water Regulation for Perchlorate
Environmental Protection Agency
CFR: 40 CFR 141, 40 CFR 142
Jan 6, 2026
Notice
2025-24290
Butyl Benzyl Phthalate (BBP), Dibutyl Phthalate (DBP), Dicyclohexyl Phthalate (DCHP), Diet...
Environmental Protection Agency
Jan 6, 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
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
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; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Mic...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 6, 2026
Notice
2026-00002
Expiration and Extension of Confidential Business Information (CBI) Claims Under the Toxic...
Environmental Protection Agency
Jan 6, 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
Notice
2025-24252
Agency Information Collection Activities; Proposed New Collection and Request for Comment;...
Environmental Protection Agency
Jan 5, 2026
Notice
2025-24238
Pesticides; Draft Guidance for Pesticide Registrants on Notifications, Non-Notifications, ...
Environmental Protection Agency
Jan 5, 2026
Notice
2025-24253
Approval of Clean Air Act General Permit Requests for Coverage for New Minor Source Gasoli...
Environmental Protection Agency
Jan 5, 2026
Notice
2025-24246
1,3-Butadiene; Risk Evaluation Under the Toxic Substances Control Act (TSCA); Notice of Av...
Environmental Protection Agency
Jan 5, 2026
Notice
2025-24258
Science Advisory Committee on Chemicals (SACC); Request for Nominations of Ad Hoc Peer Rev...
Environmental Protection Agency
Jan 5, 2026
Notice
2025-24256
Science Advisory Committee on Chemicals (SACC); Request for Nominations
Environmental Protection Agency
Jan 5, 2026
Notice
2025-24259
Certain New Chemicals or Significant New Uses; Statements of Findings-July 2025 to Septemb...
Environmental Protection Agency
Jan 5, 2026
Notice
2025-24244
Certain New Chemicals; Receipt and Status Information for September and October 2025
Environmental Protection Agency
Jan 5, 2026
Notice
2025-24168
Local Government Advisory Committee (LGAC): Notice of Charter Renewal and Request for Memb...
Environmental Protection Agency
Jan 2, 2026
Final Rule
2025-24202
Congressional Review Act Revocation of 2024 Review of Final Rule Reclassification of Major...
Environmental Protection Agency
CFR: 40 CFR 63
Jan 2, 2026
Eff: Jan 2, 2026
Proposed Rule
2025-24200
Proposed Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards ...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 2, 2026
Proposed Rule
2025-24140
Air Plan Approval; CO; Revisions to Colorado Procedural Rules and Common Provisions Regula...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 2, 2026
Final Rule
2025-24141
Air Plan Approval; Colorado; Revisions to Colorado Procedural Rules and Common Provisions ...
Environmental Protection Agency
CFR: 40 CFR 52
Jan 2, 2026
Eff: Mar 3, 2026
Notice
2025-24190
Environmental Impact Statements; Notice of Availability
Environmental Protection Agency
Jan 2, 2026
Final Rule
2025-24149
National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Oklah...
Environmental Protection Agency
CFR: 40 CFR 61, 40 CFR 63
Jan 2, 2026
Eff: Feb 2, 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.