本标准的目的是定义水、废水或再利用设施保护性安全计划的最低要求，以促进员工安全、公共卫生、公共安全和公众信心的保护。本标准可在安全实践评估中参考。本标准的规定适用于本文件的引用，且仅适用于公用事业公司的安全实践。

The purpose of this standard is to define the minimum requirements for a protective security program for a water, wastewater, or reuse utility that will promote the protection of employee safety, public health, public safety, and public confidence. This standard can be referenced in the evaluation of security practices. The stipulations of this standard apply when this document has been referenced and then only to the security practices of the utility.