Document: NUREG-0800
Document ID: e32f0820-4e33-476e-aa36-4ca8c2c64af0
Document Type: srp
Title: Use of Probabilistic Risk Assessment in Plant-Specific, Risk-Informed Decisionmaking:
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0119/ML011940192.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.0
CFR Part: 
CFR Title: 

Content:
k SRP 19-28 information in support of a LB change which goes beyond currently approved staff positions, reviewers may request that the licensee provide this information. If the licensee chooses not to provide the risk information, reviewers will evaluate the proposed applica tion using traditional engineering analysis and determine whether the licensee has provided sufficient information to support the requested change. If the licensee does not choose to address risk for a situation believed to create a special circumstance as described in Appendix D, reviewers should not issue the requested amendment until they have assessed the risk implications sufficiently to determine that there is reasonable assurance that the public health and safety will be adequately protected if the amendment request is approved. In risk-informed change proposals, licensees are expected to identify SSCs with high risk significance which are not currently subject to regulatory requirements, or are subject to a level of regulation which is not commensurate with their risk significance, or voluntary actions that are key to decisionmaking. In addition, licensees are expected to propose LB changes that will subject such SSCs or voluntary actions to the appropriate level of attention, consistent with their significance. Application-specific regulatory guides set forth specific information on the staff's expectations on this issue. Reviewers should ensure that this application-specific guidance is followed. If there is no guidance, reviewers should determine whether any commitments for enhanced requirements/controls are appropriate for such SSCs or voluntary actions, and ensure that those commitments are reflected in the licensing basis. Update of the Safety Analysis Report Reviewers should ensure that the proposed changes, when approved by the staff, will be appropriately included in future updates to the licensee's safety analysis report. In addition, the licensee should identify important