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. In the coming months, EPA intends to release the proposals for the remaining two steps in the Clean Trucks Plan. times, and will yield emissions warranties that are 2.8–4.5
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