Document: NUREG-0800
Document ID: 7916b088-fb90-4163-84fe-027bd315bcc5
Document Type: srp
Title: REVIEW OF RISK INFORMATION USED TO SUPPORT PERMANENT PLANT-
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0717/ML071700658.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.2
CFR Part: 
CFR Title: 

Content:
eport, as necessary. Application-Specific Reviews: This SRP section is intended to provide guidance for reviewing applications in risk-informed regulation where numerical values of risk indices play a relatively large role in the decisionmaking process and where a broad set of scenarios and plant operating modes may be affected. Where it is determined that an application could justify a review that is less than the full scope described in this document, reviewers should choose the relevant and applicable parts of this SRP section for guidance. The necessary sophistication of the review of the PRA, its supporting analyses, and its results depend on the contribution the risk assessment provides to the integrated decisionmaking. Application-specific SRP sections (where available) provide additional guidance in this area. II. ACCEPTANCE CRITERIA This SRP section provides guidance for use in conducting staff reviews of PRA findings and risk insights in support of licensees' requests for changes to the LB of nuclear power plants (e.g., requests for license amendments under 10 CFR 50.90 and exemptions under 10 CFR 50.11). Regulatory Guide 1.174 sets forth guidance for licensees to use in implementing acceptable methods for conducting PRA and traditional engineering analyses to support such changes. To evaluate licensee-initiated LB changes that are consistent with currently approved staff positions (e.g., regulatory guides, standard review plans, or branch technical positions), the staff normally uses traditional engineering analyses. Licensees generally would not be expected to submit risk information in support of such proposed changes. However, circumstances may arise in which new information reveals an unforeseen hazard or a substantially greater potential for a known hazard to occur, even when all regulatory requirements are met. In such situations, the NRC has the statutory authority to require licensee action above and beyond existing regulations to maintain the