本文件提供了授权应急、维护和维修车辆上使用的全向和选择性覆盖光学报警装置的设计指南、试验程序参考和性能要求。本标准适用于但不限于地面车辆。

This document provides design guidelines, test procedure references, and performance requirements for omnidirectional and selective coverage optical warning devices used on authorized emergency, maintenance, and service vehicles. It is intended to apply to, but is not limited to, surface land vehicles.