Document: NUREG-0800
Document ID: b07c8dd1-23f6-41f1-a3ba-aa378f9ea59a
Document Type: srp
Title: RISK-INFORMED INSERVICE INSPECTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0325/ML032510135.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.8
CFR Part: 
CFR Title: 

Content:
o be of use in licensing basis changes (as well as other regulatory activities not addressed here); if so, future revisions of this SRP chapter may endorse this certification process for this purpose. 3.9.8-16 impact of previous changes made to the approved requirements. The staff reviewer verifies that the following information is included in the submittal.  The CDF and LERF estimates and the version, calculation, or other reference number that identifies which version of the PRA was used.  A description of the process used to update the PRA to ensure that the PRA analyses adequately represent the current design, construction, operational practices, and operational experience of the plant and its owner.  A description of the staff and industry reviews performed on the PRA.1 Limitations, weakness, or improvements identified by the reviewers that could change the results of the PRA should be discussed. The resolution of the reviewer comments or an explanation of the insensitivity of the analysis used to support the submittal to the comment should be provided. The reviewer verifies that the PRA version used to support the analysis is appropriately specified and that the licensee’s process to update the PRA provides reasonable assurance that the results developed from the PRA appropriately reflect the current state of the plant. The reviewer should ensure that any prior review findings that may influence the parts of the PRA model or results supporting the ISI change request have been adequately addressed. If necessary to support the change request, a focused scope or a more detailed PRA review should be undertaken. General guidance for focused scope and more detailed PRA quality reviews is presented in Draft Regulatory Guide DG-1122. III.2.2.1 Scope of Piping Systems The scope of piping systems included in the RI-ISI program is reviewed in accordance with the acceptance criteria in Section II.2.2.1. III.2.2.2 Piping Segments Criteria and procedures used to