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:
s to RG 1.206, Section C.III.19. In accordance with the Statement of Consideration (72 FR 49365), for the revised 10 CFR Part 52, “License, Certifications, and Approvals for Nuclear Power Plants,” the design-specific PRA is excluded from the Tier 1 or Tier 2 information that comprises the DC information. As a result, the description of the PRA and its results included in Chapter 19 of the DC FSAR is subject to the restrictions of 10 CFR 52.63(a)(1) concerning the finality of DCs. An applicant’s COL or DC FSAR is expected to contain a qualitative description of PRA insights and uses, as well as some quantitative PRA results, such that the staff can perform the review, ensure risk insights were factored into the design, and make the evaluation findings described in this SRP section. In accordance with the Statement of Consideration (72 FR 49387) for the revised 10 CFR Part 52, the U.S. Nuclear Regulatory Commission (NRC) expects that, generally, the information that it needs to perform its review of an application from a PRA perspective is that information contained in the applicant’s FSAR Chapter 19. The staff should issue a request for additional information (RAI) and conduct audits of the complete PRA (e.g., models, analyses, data, and codes) to obtain clarifying information as needed. The staff will document any NRC audits performed in audit reports so that they may be referenced in the staff’s safety evaluation report (SER). However, neither the RAI process nor onsite audits should be used to supplement an incomplete application. Section IV.A.2.a in each existing design certification rule (DCR) requires COL applicants to provide a plant-specific design control document (DCD) containing the same type of information and using the same organization and numbering as the generic DCD. This applies to the description of the PRA and its results included in Chapter 19 of the FSAR, but does not apply to the PRA that supports a COL application (including, but not