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EPA/OAR RIN: 2060-AW83 Publication ID: 2026 
Title: Amendments to the Model Year 2027 and Later Heavy-Duty Highway Engine Criteria Pollutant Program 
Abstract:

Consistent with Administrator Zeldin's March 12, 2025, announcement, the EPA will initiate a rulemaking to reconsider the criteria pollutant standards program established in the January 2023 final rule titled Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards (88 FR 4296; January 24, 2023).

 
Agency: Environmental Protection Agency(EPA)  Priority: Economically Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: Yes  Unfunded Mandates: No 
EO 14192 Designation: Deregulatory 
CFR Citation: 40 CFR Part 86    40 CFR Part 1037    40 CFR Part 1036    40 CFR Part 1065    40 CFR Part 1068     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 42 U.S.C. 7414, 7521, 7542, 7545, and 7601(a).    42 U.S.C. 7401 et seq.    42 U.S.C. 7401-7671q.    49 U.S.C. 32901-23919q, Pub. L. 109-58.    5 U.S.C. 552, 552a, 553    28 U.S.C. 509, 510, 534    31 U.S.C. 3717.    42 U.S.C. 7414 and 7511b(e).    42 U.S.C. 7414, 7521, 7522-7525, 7541, 7542, 7543, 7545, 7547, 7550, and 7601.    33 U.S.C. 1901-1912.   
Legal Deadline:  None

Statement of Need:

In light of updated information provide by industry about the costs of the program EPA is reconsidering the existing program requirements.

Summary of the Legal Basis:

Clean Air Act Sections 202, 206, and 207.

Alternatives:

The EPA is still evaluating potential alternatives that may be considered for the proposal.

Anticipated Costs and Benefits:

The EPA is still evaluating the associated costs and benefits associated with the forthcoming proposed rule.

Risks:

The EPA is still evaluating the scope and risks associated with the forthcoming proposed rule.
Timetable:
Action Date FR Cite
NPRM  07/00/2026 
Final Rule  To Be Determined 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal 
Federalism: No 
Included in the Regulatory Plan: Yes 
Sectors Affected: 333618 Other Engine Equipment Manufacturing; 336120 Heavy Duty Truck Manufacturing; 336310 Motor Vehicle Gasoline Engine and Engine Parts Manufacturing; 811198 All Other Automotive Repair and Maintenance 
RIN Data Printed in the FR: No 
Related RINs: Related to 2060-AU41 
Agency Contact:
Jessica Brakora
Environmental Protection Agency
Office of Air and Radiation
2000 Traverwood Drive,
Ann Arbor, MI 48105
Phone:734 214-4936
Email: brakora.jessica@epa.gov