Document: NRC Regulatory Guide
Document ID: 22ccfd5e-c5d8-4615-a02c-32369aa9f533
Document Type: regulatory_guide
Title: Acceptability of Probabilistic Risk Assessment Results for Risk-Informed Activities (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1930/ML19308B636.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.200
CFR Part: 
CFR Title: 

Content:
goal is to be clearly understood by the peer review team. Further, the statement that “the peer review need not assess all aspects of the PRA against all requirements” could be taken to imply that some of the requirements could be skipped. Clarification …another purpose of the peer review is to determine the strengths and weaknesses in the PRA. Therefore, the peer review shall also assess the appropriateness of the assumptions. The peer review need not assess all aspects of the PRA against all requirements in the Technical Requirements Section of each respective Part of this Standard; however, enough aspects of the PRA shall be reviewed for the reviewers to achieve consensus on the assessment of each applicable supporting requirement, as well as on the adequacy of methodologies and their implementation for each PRA Element. 1-6.3 As written, there does not appear to be a minimum set. The requirement as written provides “suggestions.” A minimal set of items is to be provided; the peer reviewers have flexibility in deciding on the scope and level of detail for each of the minimal items. Clarification The peer review team shall use the requirements… of this Standard. For each PRA element, a set of review topics required for the peer review team are provided in the subparagraphs of para. 6.3. Additional material for those Elements may be reviewed depending on the results obtained. These suggestions are not intended to be a minimum or comprehensive list of requirements. The judgment of the reviewer shall be used to determine the specific scope and depth of the review in each of each review topic for each PRA element. DG-1362, Appendix A, Page A-5 Table A-1. Staff Position on ASME/ANS RA-Sa-2009 Part 1, General Requirements for an At-Power Level 1 and LERF PRA Index No Issue Position Resolution 1-6.6.1 The specific SRs addressed in the peer review need to be documented. As written it is not clear whether certain essential items are included in the