Transportation Department, National Highway Traffic Safety Administration
NHTSA, on behalf of the U.S. Department of Transportation (DOT), is substantially recalibrating the Corporate Average Fuel Economy (CAFE) program to bring the program into compliance with the law and to remove previous regulatory distortions which have induced manufacturers to make design decisions that have neither aligned with market demand and the needs of American families nor have delivered the consistent improvements in the fuel economy performance of manufacturer fleets, as Congress intended. This recalibration finalizes amendments to fuel economy standards for light-duty vehicles for model years 2022- 2026 and MYs 2027-2031. This final rule also finalizes amendments to compliance aspects of the program, including to vehicle classification and other compliance pathways.
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Transportation National Highway Traffic Safety Administration 49 CFR Parts 523, 531, 533, 536, 537, and 578 [NHTSA-2025-0491] RIN 2127-AM76 ( printed page 61988) AGENCY: National Highway Traffic Safety Administration (NHTSA). ACTION: Final rule. SUMMARY: NHTSA, on behalf of the U.S. Department of Transportation (DOT), is substantially recalibrating the Corporate Average Fuel Economy (CAFE) program to bring the program into compliance with the law and to remove previous regulatory distortions which have induced manufacturers to make design decisions that have neither aligned with market demand and the needs of American families nor have delivered the consistent improvements in the fuel economy performance of manufacturer fleets, as Congress intended. This recalibration finalizes amendments to fuel economy standards for light-duty vehicles for model years 2022-2026 and MYs 2027-2031. This final rule also finalizes amendments to compliance aspects of the program, including to vehicle classification and other compliance pathways. DATES: This rule is effective November 30, 2026. The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of November 30, 2026. ADDRESSES: For access to the dockets or to read background documents or comments received, please visit https://www.regulations.gov , or Docket Management Facility, M-30, U.S. Department of Transportation, West Building, Ground Floor, Rm…
Other Federal Register documents from the same docket.
The Safer Affordable Fuel-Efficient (SAFE) Vehicles Rule III for Model Years 2022 to 2031 Passenger Cars and Light Trucks
Public Hearing for Corporate Average Fuel Economy Standards: The Safer Affordable Fuel-Efficient (SAFE) Vehicle Rule III for Model Years 2022 to 2031 Passenger Cars and Light Trucks
The Safer Affordable Fuel-Efficient (SAFE) Vehicles Rule III for Model Years 2022 to 2031 Passenger Cars and Light Trucks
Citation: 91 FR 61988
