在美国，汽车制造商、环保组织在运动型多用途车（ＳＵＶ）和轻卡的燃油经济性标准上产生对峙，环保组织极力促进启用更严格的ＳＵＶ、轻型卡车的燃油经济标准，以遏止环境污染、减少美国对进口石油的依赖。而汽车制造商们则称：目前实行超越技术条件许可的燃油经济标准，将迫? In the United States, automakers and environmental organizations have confronted each other in the fuel economy standards of sport utility vehicles (SUVs) and light trucks. Environmental organizations strongly promote the use of more stringent fuel economy standards for SUVs and light trucks to curb environmental pollution. Reduce the United States’ dependence on imported oil. The auto manufacturers say that the current implementation of fuel economy standards that exceed the technical conditions will force