与传统汽油内燃机相比，电动和替代燃料汽车对第一和第二响应者的危害不同。氢气车辆（H2V），包括事故中涉及的燃料电池车辆（FCV），可能存在与燃料储存和高压系统相关的独特危险。与混合动力电动汽车和FCV高压系统相关的电气危险已在母文件SAE J2990中进行了阐述。因此，本推荐规程通过参考SAE J2990解决了电气问题，并补充了SAE J2990，以解决与氢车辆事故相关的潜在后果，并建议了在事故发生后帮助保护应急响应人员、拖车和/或回收、储存、修理和打捞人员的通用程序。对行业设计标准和工具进行了研究，并在适当情况下建议责任组织实施。

Electric and alternative fueled vehicles present different hazards for first and second responders than conventional gasoline internal combustion engines. Hydrogen vehicles (H2V) including Fuel Cell Vehicles (FCVs) involved in incidents may present unique hazards associated with the fuel storage and high voltage systems.The electrical hazards associated with the high voltage systems of hybrid-electric vehicles and FCVs are already addressed in the parent document, SAE J2990. This Recommended Practice therefore addresses electric issues by reference to SAE J2990 and supplements SAE J2990 to address the potential consequences associated with hydrogen vehicle incidents and suggest common procedures to help protect emergency responders, tow and/or recovery, storage, repair, and salvage personnel after an incident has occurred. Industry design standards and tools were studied and where appropriate, suggested for responsible organizations to implement.