Proposed Amendments to the Heavy-Duty Engine and Vehicle Omnibus Regulation

Protection of the environment (TBT)

Heavy-duty engines; Environmental protection (ICS code(s): 13.020); Air quality (ICS code(s): 13.040); Special purpose vehicles (ICS code(s): 43.160)

Link to ePing

13.020 - Environmental protection; 13.040 - Air quality; 43.160 - Special purpose vehicles; 13.020 - Environmental protection; 13.040 - Air quality; 43.160 - Special purpose vehicles

The California Air Resources Board (CARB) has posted new guidance documents for manufacturers, dealers, upfitters, and buyers to clarify when a heavy-duty engine must be California-certified and subject to the California Averaging, Banking and Trading program requirements (fully offset) under Title 13, California Code of Regulations, Sections 1956.8(b) and 2015(r). These guidance documents provide additional information to assist stakeholders in planning efforts to comply with the Heavy-Duty Engine and Vehicle Omnibus (Omnibus) regulation:Clarifications for California Truck Dealers Regarding Sales Outside CaliforniaCARB Responses Regarding Requests for Enforcement Discretion for Advanced Clean Fleets and Omnibus RegulationsWhile these documents are intended to help with compliance efforts, it is the sole responsibility of each regulated entity to ensure compliance with the Omnibus regulation.In July 2023, CARB announced a Clean Truck Partnership with the nation’s leading truck manufacturers and the Truck and Engine Manufacturers Association. CARB has created a website to track the status and outcome of commitments made as part of that partnership: Clean Truck Partnership CommitmentsIn August 2023, CARB staff proposed amendments to the Omnibus regulation to provide additional compliance flexibilities in the 2024 through 2026 model year timeframe, while maintaining the emissions benefits of the Omnibus regulation. CARB’s Executive Officer signed Executive Order R-23-006 of the Omnibus Amendments Regulation, approving the proposed amendments, on 28 December 2023.

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