Document: NUREG-0800
Document ID: e32f0820-4e33-476e-aa36-4ca8c2c64af0
Document Type: srp
Title: Use of Probabilistic Risk Assessment in Plant-Specific, Risk-Informed Decisionmaking:
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0119/ML011940192.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.0
CFR Part: 
CFR Title: 

Content:
formation. 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 if (i) the form of the change request is appropriate for the proposed LB change, (ii) the licensee submitted the information required by the relevant regulation(s) 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. Where the licensee submits risk information in support of the LB change request, that information should meet the guidance in Section 3 of RG 1.174. Licensees have a choice of whether to submit results or insights from risk analyses in support of their LB change request. Where the licensee's proposed change is consistent with the currently approved staff positions, reviewers generally should reach their determination solely on the basis of traditional engineering analysis without recourse to risk information. (Reviewers may, however, consider any risk information submitted by the licensee.) Where the licensee's proposed change goes beyond currently approved staff positions or appears to constitute a special circumstance as described in Appendix D, reviewers should consider both information derived through traditional engineering analysis as well as information derived from risk insights. If the licensee does not submit risk SRP 19-28 information in support of a LB change which goes beyond currently approved staff positions, reviewers may request that the licensee provide this information. If the licensee chooses not to