Document: NUREG-0800
Document ID: 8dd882f4-a34f-4415-acd1-ebb441c72786
Document Type: srp
Title: PROBABILISTIC RISK ASSESSMENT AND SEVERE ACCIDENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1213/ML12132A481.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.0
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Content:
t docketed and the information reviewed by the NRC during audits. The results of the staff review, including staff audits, should reflect a consistent and scrutable evaluation of the applicant’s PRA and severe accident evaluations. 19.0-35 Draft Revision 3 – September 2012 Based on an evaluation of the acceptance criteria from Subsection II of this SRP section, with guidance given in Subsection III, the staff will generally need to make a finding in the following areas: 1. The applicant has used the PRA and severe accident evaluation to identify and assess the balance of preventive and mitigative features, including consideration of operator actions. The Commission anticipates that the plant's operation will reflect a reduction in risk compared to existing operating plants. 2. The applicant has used PRA results and insights to support other programs, as identified in Subsection I of this SRP section. 3. The PRA reasonably reflects the as-designed, as-built, and as-operated plant, and the PRA maintenance program will ensure that the PRA will continue to reflect the as- designed, as-built, and as-operated plant, consistent with its identified uses and applications. 4. The PRA is of the appropriate scope, level of detail, and technical adequacy for its identified uses and applications. 5. Appropriate ITAAC (including design acceptance criteria if applicable), interface requirements, and COL items have been identified. 6. The applicant has performed adequate systematic evaluations of the risk associated with the design and used them to identify risk-informed safety insights in a manner consistent with the Commission’s stated goals. 7. In accordance with the Commission’s objectives for new reactor designs, the applicant has introduced appropriate and effective design features that contribute to the mitigation of severe accidents. The Commission anticipates that these features will reduce the significant risk contributors when compared to existing operating