Document: NUREG-0800
Document ID: dd4f84a9-8976-44c4-b631-d7c0254f4efc
Document Type: srp
Title: PROBABILISTIC RISK ASSESSMENT AND SEVERE ACCIDENT EVALUATION FOR
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1416/ML14161A594.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.0
CFR Part: 
CFR Title: 

Content:
ion of severe accident issues in the design and to ascertain how the risk insights from the design PRA are derived, DC applicants should address those portions 4 If the applicant is merely identifying expected uses and applications of the PRA in subsequent phases, the staff will typically not perform detailed reviews of this information, but rather, will use this information in planning and preparing for these reviews in the subsequent phases. However, if the applicant requests, as part of its application, review and approval of a risk-informed application that will be implemented during a later phase, the staff will perform the necessary review. For example, at the COL phase, an applicant may propose to implement 10 CFR 50.69, “Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power Reactors,” during the construction phase and need to have that risk-informed application approved before that time. The staff should use additional guidance outside this SRP section (e.g., RG 1.174 and RG 1.178 for risk-informed TS) to support these reviews. 19.0-23 Draft Revision 3 –November 2014 of the design covered by DAC in the design PRAs to the extent practicable. If it is not practical to model certain areas that employ DAC in the design PRA, the applicant should identify those areas and qualitatively assess their impacts on the PRA results and insights. Any assumptions made regarding the reliability or performance of SSCs under DAC during this process shall be verified when the design is finalized. Furthermore, the staff should review the DC applicant’s PRA in accordance with the available guidance on parts of the design where DAC are used. 7. The staff reviews the PRA-related inspections, tests, analyses and acceptance criteria (ITAAC), COL action items, and other commitments, including any actions identified or proposed to address them. The applicant’s PRA-based insights table should also identify these items. The staff