本标准适用于含有235U、233U、239Pu和其他可裂变材料的核反应堆外部操作，其中提供屏蔽和限制，以保护人员和公众。提供了在这些条件下可用于临界安全控制的标准。本标准不适用于在受控条件下组装这些材料，例如在关键实验中。本标准不包括被视为管理特权的控制管理程序的细节、有关过程和设备设计的细节，或过程控制仪表的描述。

This standard is applicable to operations outside of nuclear reactors with235U,233U,239Pu, and other fissionalble materials in which shielding and confinement are provided for protection of personnel and the public. Criteria are provided that may be used for criticality safety controls under these conditions. This standard does not apply to the assembly of these materials under controlled conditions, such as in critical experiments. This standard does not include the details of administrative procedures for control, which are considered to be management prerogatives, details regarding the design of processes and equipment, or descriptions of instrumentation for process control.