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:
he licensee's RH-IST program. 4. Periodic Reassessment The reviewer should assess the licensee's procedures for conducting the periodic risk-informed IST program review to ensure that it * prompts the licensee to conduct overall program assessments periodically to reflect changes in plant configuration, component performance, test results, and industry experience * prompts the licensee to review and revise as necessary the models and data used to categorize components to determine whether component groupings have changed * prompts the licensee to reevaluate equipment performance (based on both plant- specific and generic information) to determine whether the IST program should be adjusted The reviewer should verify that the licensee has incorporated the results of its corrective action program for IST program components into its periodic IST program reassessment. The reviewer should verify that the licensee has procedures in place to identify the need for more emergent RI-IST program updates (e.g., following a major plant modification or following a significant equipment performance problem). The periodic RI-IST program review conducted by the licensee may be done in conjunction with the plant's periodic PRA updates, industry operating experience programs, the Maintenance Rule program, and other risk-informed program initiatives. 5. RI-IST Program Changes After Initial Approval The reviewer should verify that the licensee has a process or procedures in place to assure that changes that meet the acceptance guidelines in Section ll.B.5 (above) are reviewed and approved by the NRC staff prior to implementation. IV. EVALUATION FINDINGS The reviewer should write an introduction to the safety evaluation that describes the proposed change in terms of * the particular components that would be affected by the proposed changes in IST program * the plant systems involved with the proposed changes * the change in testing strategy (i.e., test frequency and methods) proposed for