Document: NUREG-0800
Document ID: f60cdc8f-3c25-45c3-a1d3-b0f530961625
Document Type: srp
Title: DETERMINING THE TECHNICAL ADEQUACY OF PROBABILISTIC RISK
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1219/ML12193A107.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.1
CFR Part: 
CFR Title: 

Content:
equacy of the baseline PRA. 19.1- 3 Rev. 3 – September 2012 This SRP section may be used in conjunction with an application-specific SRP section such as SRP Section 19.0, Section 19.2, Section 16.1, Section 3.9.7, Section 3.9.8, or Section 9.5.1.2, which focus on the appropriate use of the PRA results in an integrated decision-making process. This SRP section 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. General This SRP is intended to support the staff in its assessment of the technical adequacy of the PRA model used to generate results to support a risk-informed submittal. As such, it applies to all the parts1 of a PRA that support the results that inform the regulatory decision being made. Review Interfaces Other SRP sections interface with this section as described in the applicability section. II. ACCEPTANCE CRITERIA Acceptance criteria are based on the Commission’s policy statements (Reference 11) and, for reactors licensed under Part 52, on meeting the relevant requirements of the Commission’s regulations. If the applicant shows that its PRA model meets the regulatory positions set forth in RG 1.200, the technical reviewer should be able to conclude that the PRA is technically adequate. If exceptions to RG 1.200 have been identified and the staff has determined that the exceptions would not affect the risk results sufficiently to affect the regulatory decision, the staff should also be able to conclude that the PRA is technically adequate. Requirements The following regulatory requirements pertain to new reactors: 10 CFR 50.71(h)(1) requires that no later than the scheduled date for initial loading of fuel, each holder of a COL shall develop a Level 1 and a Level 2 PRA. The PRA must cover those initiating events and modes for which NRC-endorsed consensus standards on PRA exist 1 year prior to the scheduled date for initial loading