EPA finalizes MY 2027 heavy-duty truck NOx standards; first step in Clean Trucks Plan
Green Car Congress
DECEMBER 21, 2022
The US Environmental Protection Agency (EPA) finalized more stringent NO x emissions limits for model year 2027 and later heavy-duty engines and vehicles. The newly announced rule does not include final action regarding the proposed targeted updates to the existing Heavy-Duty Greenhouse Gas Emissions Phase 2 program (HD GHG Phase 2).
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