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EPA finalizes new heavy-duty GHG Phase 3 emission standards for model years 2027-2032

On March 29, 2024, the Environmental Protection Agency (EPA) issued the final rule for “Greenhouse Gas Emissions Standards for Heavy-Duty Vehicles – Phase 3” (“Phase ...

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California Air Resources Board and heavy-duty manufacturers announce New Clean Truck Partnership

A historic joint agreement, called the Clean Truck Partnership, was announced on July 6, 2023, between the California Air Resources Board (CARB) and a number of heavy-duty engine and...

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EPA proposes new Heavy-Duty GHG phase 3 emission standards for model years 2028-2032

On April 12, 2023, the Environmental Protection Agency (EPA) issued a Notice of Proposed Rulemaking for “Greenhouse Gas Emissions Standards for Heavy-Duty Vehicles – Phase...

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EPA grants two of three preemption waivers for CARB heavy-duty vehicle and engine regulations

What is the significance of EPA’s March 30, 2023 Notice of Decision (pre-publication) granting two separate requests for waivers of Clean Air Act (“CAA”) preemption for...

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FMCSA issues supplemental advance notice of proposed U.S. rulemaking for ADS-Equipped CMVs

On February 1, FMCSA published its supplemental advance notice of proposed rulemaking Safe Integration of Automated Driving Systems (ADS)-Equipped Commercial Motor Vehicles (CMVs) (88 Fed....

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D.C. Circuit says trailers are not "motor vehicles"

On November 12, 2021, a divided panel of the U.S. Court of Appeals for the D.C. Circuit in Truck Trailer Manufacturers Association, Inc. v. EPA, et al. held that the Environmental...

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NHTSA proposes MY2024-2026 Corporate Average Fuel Economy standards

On August 10, 2021, the National Highway Traffic Safety Administration (NHTSA) issued a Notice of Proposed Rulemaking (NPRM) to revise the federal corporate average fuel economy...

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EPA proposes MY2023-2026 GHG Emission Standards and President Biden signs Clean Cars Executive Order

On August 5, 2021, the Environmental Protection Agency (EPA) issued a Notice of Proposed Rulemaking (NPRM) to revise the federal greenhouse gas (GHG) emissions in model years (MY) ...

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EPA announces updated vehicle and engine tampering policy

The U.S. Environmental Protection Agency (EPA) recently released a long-awaited update to its enforcement policy on vehicle and engine tampering and aftermarket parts.

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