Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles

Protection of the environment (TBT); Quality requirements (TBT)

Light-duty vehicles and Class 2b and 3 ("medium-duty") vehicles; Multi-pollutant emissions; Quality (ICS code(s): 03.120); Environmental protection (ICS code(s): 13.020); Air quality (ICS code(s): 13.040); Road vehicle systems (ICS code(s): 43.040); Fuel systems (ICS code(s): 43.060.40); Electric road vehicles (ICS code(s): 43.120)

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03.120 - Quality; 03.120 - Quality; 13.020 - Environmental protection; 13.020 - Environmental protection; 13.040 - Air quality; 13.040 - Air quality; 43.040 - Road vehicle systems; 43.040 - Road vehicle systems; 43.060.40 - Fuel systems; 43.060.40 - Fuel systems; 43.120 - Electric road vehicles; 43.120 - Electric road vehicles

Under the Clean Air Act (CAA), 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.This final rule is effective on 17 June 2024. The incorporation by reference of certain publications listed in this regulation is approved by the Director of the Federal Register beginning 17 June 2024. The incorporation by reference of certain publications listed in this regulation is approved by the Director of the Federal Register as of 27 March 2023.Title 40 Code of Federal Regulations (CFR) Parts 8586600103610371066, and 1068This final rule and the proposed rule notified as G/TBT/N/USA/1991 are identified by Docket Number EPA-HQ-OAR-2022-0829. The Docket Folder is available on Regulations.gov at https://www.regulations.gov/docket/EPA-HQ-OAR-2022-0829/document and provides access to primary and supporting documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number.

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EN:File here

FR:File here

ES:File here

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