Document: NUREG-0800
Document ID: 4f0d611c-d3fb-43e5-ab91-e7f7b4de3511
Document Type: srp
Title: Determining the Technical Adequacy of Probabilistic Risk
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0406/ML040630300.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.1
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Content:
address issues related to limitations in scope of the PRA, etc. However the PRA results are used, and whatever role they play in the decision making, the PRA analysis must be of sufficient quality to support that role. The existing SRP chapters give guidance on assessing the analysis of the impact of the change on the PRA results, but do not give specific guidance on assessing the adequacy of the base PRA. Regulatory Guide 1.200 and this SRP are being developed to fill that gap. This SRP provides guidance to the NRC staff on determining the scope of review of the elements of a PRA analysis used to support a specific regulatory application, based on information provided by the licensee on the results of a comparison with an industry PRA standard or the results of a peer review performed in accordance with an industry approved peer review process. This SRP chapter is intended to be used in conjunction with an application-specific SRP such as SRP Chapter 19 (Ref. 12) or Chapter 3.9.8 (Ref. 16), which focus on the appropriate use of the PRA results in an integrated decision-making process. They may also be used to support novel applications in which the licensee is expected to identify how the PRA results are used to provide information to the decision makers. This SRP chapter does not focus on the decision-making process itself, which is addressed in the application-specific SRP chapters. REVIEW RESPONSIBILITIES The technical nature of a licensee's request will determine which technical review branch in the NRC's Office of Nuclear Reactor Regulation (NRR) will serve as the primary review branch and, as such, have overall responsibility for leading the technical review, drafting the staff safety evaluation report (SER) or other appropriate regulatory document, and coordinating input from other technical review organizations. The Probabilistic Safety Assessment Branch (SPSB) assists the primary review branch (upon request) by reviewing the PRA information and findings