Document: NUREG-0800
Document ID: 4e1d86bd-74a5-4678-8bc0-ffce3ba28ea0
Document Type: srp
Title: RISK-INFORMED INSERVICE TESTING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0428/ML042880272.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.7
CFR Part: 
CFR Title: 

Content:
ved by the NRC staff. As discussed in Section V below, the overall RI-IST program, including changes thereto, are enforceable under 10 CFR 50.55a. Examples of changes to RI-IST programs that would not require review and approval may include, but are not limited to, the following: * Changes to component groupings, test intervals, and test methods that do not involve a change to the overall RI-IST approach which was reviewed and approved by the NRC, * Component test method changes that involve the implementation of an NRC endorsed ASME Code or an NRC-endorsed Code Case, 3.9.7-1 5 Rev. 0 - August 1998 * Re-categorization of components due to experience, PRA insights, or design changes but not programmatic changes where the process used to recategorize the components is consistent with the RI-IST process and results that were reviewed and approved by the NRC. Changes to RI-IST programs that would require review and approval may include, but are not limited to, the following: * Changes to the RI-IST program that involve programmatic changes (e.g., changes in the acceptance guidelines used for the licensee's integrated decision making process), * Test method changes that involve deviation from the NRC-endorsed Code requirements, NRC-endorsed Code Case, or published NRC guidance. The cumulative impact of all RI-IST program changes (initial approval plus later changes) should comply with the guidance in Regulatory Position 2.3.3 of Regulatory Guide 1.175 and Section 2.2.4 of Regulatory Guide 1.174. Changes to a licensee's RI-IST program should also be evaluated using change mechanisms described in the regulations (e.g., 10 CFR Part 50.55a, 10 CFR Part 50.59), as appropriate, to determine whether prior NRC staff review and approval is required before implementation. 111. REVIEW PROCEDURES A. REVIEW OF THE LICENSEE'S ENGINEERING EVALUATION 1. Evaluation of Proposed Changes The reviewer should verify that the licensee reviewed the applicable licensing-basis documents to