Biden EPA Details 11th-Hour Defense Of ‘Phase 3’ Heavy-Truck GHG Rule

January 16, 2025
The Biden administration is seeking to formalize its legal defense of EPA’s “phase 3” greenhouse gas standards for heavy-duty trucks, including the rule’s partial reliance on vehicles with electric powertrains, even as the incoming Trump administration is expected to ask to pause the litigation to reassess the policy. “The ‘motor vehicles’ regulated by the [Clean Air Act] are defined by their function, not their power source. They can be powered by diesel, electricity, or any other energy source,” EPA says...


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