…rating (GVWR) > 8,500 lbs. Contents Overview History Technical standards Links Categories United States Heavy-duty vehicles Emissions standards History Federal regulation of heavy-duty engine emissions in the United States began…
…and GHG emissions control. Some important legislative and regulatory milestones in the US’ efforts to regulate light-duty vehicle fuel economy and GHG emissions are as follows: 1975 Energy Policy Conservation…
…regulations. For additional information on heavy-duty emissions, see the US Heavy-duty Emissions page. Optional NOx standards (THROUGH MY 2023) In 2013, CARB adopted an optional low-NOx standard for on-road heavy-duty…
…medium-duty (2700 ≤ GVWR < 3860 kg) vehicles, 1994 or newer Contents Overview History Technical Standards Links Categories Chile Light-duty vehicles Emissions standards History Emission standards for light- and medium-duty…
…for off-road use. Contents Overview History Technical Standards Testing Durability Requirements On-Board Diagnostics Systems Data Transparency Links Categories Brazil Light-duty vehicles Emissions standards History Brazil has regulated vehicular pollution emissions…
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