美国校车是比较特殊的客车,美国在FMVSS(Federal Motor Vehicle Safety Standards,联邦机动车安全标准)中进行了特别的定义,同时对校车的安全制定了多项规定。美国校车的定义目前美国市场上的校车主要有A、B、C、D4种类型。其中:A类最小,允许乘客座位数是10～36;D类最大,座位数可以达90。4种类型中前3种都是长头校车,只有D类是平头。 The U.S. school bus is a rather special bus. The United States has made a special definition in FMVSS (Federal Motor Vehicle Safety Standards) and has made many stipulations on the safety of school buses. The definition of the school bus in the United States Currently the school bus in the United States are mainly A, B, C, D4 types. Of which: the smallest in Class A, the number of passenger seats allowed is 10-36; the largest in Class D, the number of seats can reach 90.4. The first three of the three types are long-headed school buses, and only Class D is flat head.