Document: NUREG-0800
Document ID: 817bb0ad-6fd7-433e-aa2b-b4b3e1166f9c
Document Type: srp
Title: PROBABILISTIC RISK ASSESSMENT AND SEVERE ACCIDENT EVALUATION FOR
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0717/ML071700652.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.0
CFR Part: 
CFR Title: 

Content:
as may be appropriate for a particular case. 19.0-11 Revision 2 - June 2007 These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. The staff will review the description of the PRA and its results in order to make the evaluation findings described in this SRP section. In addition to a qualitative description, the staff will review some quantitative results (e.g., mean core-damage frequencies, mean large release frequencies, and system importance measures), with the understanding that the complete PRA, including models, analyses, data, and codes, will be available for NRC audit. Although Chapter 19 of the applicant’s FSAR should include much of the information needed by the staff to perform the PRA review, some staff audits of the PRA and supporting analyses may be necessary to fully understand, review, and confirm the PRA results, insights, and associated analytical bases. The staff will document any PRA audits performed in audit reports so that they may be referenced in the staff’s SER. For instances in which additional information is needed to complete the staff’s review of the FSAR, the staff will use the request for additional information (RAI) process. Through the review of information provided by the applicant and of applicable NRC audit reports, the staff will assess the applicant’s PRA and severe accident evaluations. The reviewer’s assessment of the PRA, severe accident evaluations, and any commitments lead to the conclusions regarding acceptability, as described in Subsection IV of this SRP section. For additional information, the staff should consider the information provided in Chapter 19 of past SERs for advanced LWRs. The NRC issued the final SER (FSER) for the DC of the advanced