Document: NUREG-0800
Document ID: 05908428-2f08-4a4f-8512-996c29c86da8
Document Type: srp
Title: have been revised to address Addendum B of the ASME standard and the revised NEI
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0717/ML071700657.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.1
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have been performed in a manner consistent with current good PRA practice. The former needs to be addressed as part of the assessment of the application. The latter can be met by determining that the necessary parts of the PRA have been performed in accordance with the staff position on consensus PRA standards or industry programs as documented in the appendices to Regulatory Guide 1.200. Where there are differences in approach to performing a specific part, the staff must determine that the approach used by the applicant is either equivalent to, or better than, that supported by the staff position. III. REVIEW PROCEDURES The reviewer should select material from the procedures described below, as may be appropriate for a particular case. 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 objective of this SRP is to provide guidance to the NRC staff on how to determine that the PRA results being used in a decision are supported by the underlying analysis. It must be clear that the elements of the model used to generate those results are of sufficient technical quality and that the assumptions and uncertainties that have the potential to affect the results have been evaluated as being appropriate. III.1 Scope of Review In order to perform the review for quality, the reviewer should first understand the context in which the PRA is being used. III.1.1 Use of the PRA in the Application The reviewer should become familiar with the way the PRA is used in the application. This includes: • identification of the SSCs, operator actions, and plant operational characteristics affected by or important to the application • a description of the cause-effect relationships between the change and the above SSCs,