Greenhouse gas emissions from medium and heavy-duty trucks in the U.S. 1990-2022

Medium- and heavy-duty truck emissions in the United States fell roughly one percent in 2022, to 413 million metric tons of carbon dioxide equivalent (MtCO₂e). Since 1990, emissions from these vehicles have risen by roughly 75 percent.Medium and heavy-duty trucks are a major contributor to transportation-related emissions in the U.S. In 2022, they accounted for roughly 23 percent of the sector's total emissions, with only light-duty trucks having a larger share. In 2021, the U.S. Environmental Protection Agency announced the Clean Trucks Plan – a series of regulations that aims to slash GHG emissions and air pollution from heavy-duty trucks.

2022年，美国中型及重型卡车的排放量下降了约一%，降至4.13亿吨二氧化碳当量（MtCO₂e）。自1990年以来，此类车辆的排放量增长了约75%。中型及重型卡车是美国交通相关排放的主要贡献者。2022年，它们占该行业总排放量的约23%，仅轻型卡车所占份额更大。2021年，美国环境保护署宣布了清洁卡车计划——一系列旨在大幅削减重型卡车温室气体排放和空气污染的法规。