规定了用于道路车辆的1A级、400级和UN R70性能反光后标志牌的制造要求。它定义了材料、生产过程、图形和文本设计以及性能要求。

Specifies manufacturing requirements for Class 1A, Class 400 and UN R70 performance reflective rear marker plates intended for use on road vehicles. It defines materials, production processes, graphics and text design, and performance requirements.