美国环保局将DEF传感器从卡车上移除, 以减少故障并防止突然减速. EPA removes DEF sensors from trucks to reduce failures and prevent sudden slowdowns.

美国环保署已经取消了重型卡车中柴油排气液 (DEF) 传感器的要求,用氧化物传感机代替它们以解决导致突然减速的频繁故障. The EPA has removed the requirement for Diesel Exhaust Fluid (DEF) sensors in heavy-duty trucks, replacing them with NOx sensors to fix frequent failures that caused sudden slowdowns. 从2027年开始,卡车在出现故障后会警告司机650英里以内进行轻度限制的实施,从而减少了昂贵的停工和卡车司机及农民的停机时间. Starting in 2027, trucks will warn drivers for 650 miles after a fault before mild restrictions apply, reducing costly shutdowns and downtime for truckers and farmers.