Document: NUREG-0800
Document ID: ac43f632-9db1-4857-9f56-bfba45965456
Document Type: srp
Title: * These are modifications to a plant’s design, operations, or other activities that require NRC approval. These modifica
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0232/ML023250195.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19
CFR Part: 
CFR Title: 

Content:
reliability degradation. Reviewers should evaluate the impact on plant risk and SSC functionality, reliability, and availability given the licensee’s proposed implementation and monitoring plan. The benefits from the implementation and monitoring programs should be balanced against any negative impact on risk. Finally, reviewers should consider the criteria to be applied in deciding what actions are to be taken in cases when performance falls below that predicted by the supporting evaluations. Corrective action procedures should be in place before implementation of the proposed program. III.4 ELEMENT 4: CONDUCT STAFF EVALUATION OF SUBMITTAL In order for the staff to reach a conclusion regarding the acceptability of the proposed LB change on the basis of the review guidance presented in earlier sections, the licensee must submit or make available sufficient engineering and licensing information. In addition, the licensee should request appropriate regulatory action. Requests for proposed changes to the plant’s LB typically take the form of requests for license amendments (including changes to or removal of license conditions), technical specification changes, changes to or withdrawal of orders, and changes to programs pursuant to 10 CFR 50.54 (e.g., QA program changes under 10 CFR 50.54(a)). Reviewers should determine whether (i) the form of the change request is appropriate for the proposed LB change, (ii) the licensee submitted the information required by the relevant regulations in support of the request, and (iii) the request is in accordance with relevant procedural requirements. For example, license amendments should meet the requirements of 10 CFR 50.90, 50.91, and 50.92, as well as the procedural requirements in 10 CFR 50.4. When the licensee submits risk information in SRP 19-28 support of the LB change request, that information should meet the guidance in Section 3 of Regulatory Guide 1.174. Licensees have a choice of whether to submit results or