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:
ures and acceptance guidelines (referred to as Regulatory Positions in Regulatory Guide 1.175) for its reviews of proposed plant-specific, risk-informed changes to a licensee's inservice testing (IST) program. The review procedures herein are consistent with acceptable methods for implementing a risk-informed IST (RI-IST) program consistent with Regulatory Guide 1.174 and Regulatory Guide 1.175 (Ref. 2 and Ref. 3). The licensee's RI-IST submittal should define the proposed changes to the IST program. The licensee should have identified changes to the design, operation, and other activities at the plant that would be changed by the proposed RI-IST program. The principal focus should be on the use of PRA findings and risk insights in support of those proposed changes to a plant's design, operation, and other activities that require NRC approval. Such changes include (but are not limited to) license amendments under 10 CFR 50.90, requests for use of alternatives under 10 CFR 50.55a, and exemptions under 10 CFR 12. However, the reviewer should note that there are certain docketed commitments that are not related to regulatory requirements that may be changed by licensees via processes other than as described in NRC regulations (e.g., consistent with reference 9). The reviewer will need to evaluate the acceptability of proposed changes to docketed commitments identified by the licensee (e.g., any changes to commitments made by the licensee in response to NRC Generic Letter 89-10 or 96-05). The licensee should have identified the particular components that would be affected by the proposed changes to the IST program. This should include all of the components currently in the licensee's IST program as well as any other components that the licensee's integrated decisionmaking process categorized as being highly safety significant (HSSC). The method used by the licensee to categorize components should be described. There should also be a detailed description of how the