本推荐规程提供了一个单一的组件功能标识符来源，该标识符与有关唯一标识原则和定义、实施说明和系统描述的相关推荐规程一起，构成了一个名为能源行业标识系统（EIIS）的概念，用于唯一标识系统、结构，以及核电站和化石燃料发电厂项目（发电站）及相关设施的组件。水力发电和其他类型的发电厂项目不包括在这个概念中。

This recommended practice provides a single source of component function identifiers that, along with related recommended practices concerning unique identification principles and definitions, implementation instructions, and system descriptions, makes up a concept, entitled the Energy Industry Identification System (EIIS), for uniquely identifying systems, structures, and components of nuclear and fossil-fueled power plant projects (electric power generating stations) and related facilities. Hydro and other types of power plant projects are not included in this concept.