Document: NUREG-0800
Document ID: 496a8650-7c3b-4111-a527-d49e2f61ae5c
Document Type: srp
Title: PHYSICAL SECURITY—COMBINED LICENSE AND OPERATING REACTORS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1729/ML17291B265.pdf
Revision Date: 2023-06
Chapter: 13
Section ID: 13.6.1
CFR Part: 
CFR Title: 

Content:
on (i.e., ensuring no single failure results in loss of the intended function). Diversity and separation provide protection against dependent (common cause) failures of multiple means of accomplishing needed functions. Diversity is achieved by using different technologies, equipment, manufacturers, control logic, signals, and functions to provide a diverse way of accomplishing the intended security function. Independence is attained by physical separation and physical barriers, including electrical or motor force independence. Operational requirements (i.e., security responses providing interdiction and neutralization functions) provide Defense-in-depth by using layers of protection that include diverse, separate, and independent armed responders and by accounting for uncertainties (e.g., equipment malfunction, human factors, neutralized or operationally ineffective responses, etc.) to perform required interdiction and neutralization function at all plant areas. The NRC’s philosophy applies to the design of a physical protection system, which integrate engineered controls and administrative controls, to provide a high assurance of protection against the DBT for radiological sabotage. C. 10 CFR 73.55(b)(4) is satisfied when sufficient details (summary and conclusions capturing security-significant requirements) of analyses and consideration of site- specific conditions are addressed in the design of the physical protection program. The summary and results of target sets should be provided in sufficient detail to demonstrate what must be protected and how the physical protection program meets the performance requirements of 10 CFR 73.55(b)(3)(1) and 73.55(b)(3)(ii). D. 10 CFR 73.55(b)(6) is satisfied when sufficient details of management systems (e.g., processes and procedures) are provided to determine how a performance evaluation program will be established, maintained, and implemented in accordance with the regulatory requirements of Appendix B to 10 CFR Part 73.