Data / Federal rules / 2024-06214
Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles
The Environmental Protection Agency published this final rule in the Federal Register on April 18, 2024. It took effect on June 17, 2024.
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What the agency says
Under the Clean Air Act, the Environmental Protection Agency (EPA) is establishing new, more protective emissions standards for criteria pollutants and greenhouse gases (GHG) for light-duty vehicles and Class 2b and 3 ("medium-duty") vehicles that will phase-in over model years 2027 through 2032. In addition, EPA is finalizing GHG program revisions in several areas, including off-cycle and air conditioning credits, the treatment of upstream emissions associated with zero-emission vehicles and plug-in hybrid electric vehicles in compliance calculations, medium-duty vehicle incentive multipliers, and vehicle certification and compliance. EPA is also establishing new standards to control refueling emissions from incomplete medium-duty vehicles, and battery durability and warranty requirements for light- duty and medium-duty electric and plug-in hybrid electric vehicles. EPA is also finalizing minor amendments to update program requirements related to aftermarket fuel conversions, importing vehicles and engines, evaporative emission test procedures, and test fuel specifications for measuring fuel economy.
Key facts
- Document number
- 2024-06214
- Type
- Final rule
- Action
- Final rule
- Agency
- Environmental Protection Agency
- Published
- April 18, 2024
- Takes effect
- June 17, 2024
- Dates
- This final rule is effective on June 17, 2024. The incorporation by reference of certain publications listed in this regulation is approved by the Director of the Federal Register beginning June 17, 2024. The incorporation by reference of certain publications listed in this regulation is approved by the Director of the Federal Register as of March 27, 2023.
- Docket
- EPA-HQ-OAR-2022-0829; FRL-8953-04-OAR
- Regulation ID (RIN)
- 2060-AV49
- Code of Federal Regulations
- 40 CFR 85; 40 CFR 86; 40 CFR 600; 40 CFR 1036; 40 CFR 1037; 40 CFR 1066; 40 CFR 1068
- Topics
- Administrative practice and procedure; Air pollution control; Confidential business information; Electric power; Environmental protection; Fuel economy; Greenhouse gases; Imports; Incorporation by reference; Labeling; Motor vehicle pollution; Penalties; Reporting and recordkeeping requirements; Research; Warranties
- Pages
- 374
Other documents from the Environmental Protection Agency
Everything from the Environmental Protection Agency · Rules on administrative practice and procedure · Rules on air pollution control · Rules on confidential business information · Published in April 2024
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.