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
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CFR Title: 

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n of current regulatory requirements, as well as on adherence to the safety principles, and not solely on the basis of a comparison of quantitative probabilistic risk assessment results with numerical acceptance guidelines. The decision to reject a non-risk-informed license amendment request on the basis of risk should be supported by the RILP and would be expected to be elevated 1:o office-level management for a final decision. The authority provided by the Atomic Energy Act and current regulations requires rejection of a license amendment request if the NRC is unable to find that adequate protection is provided. SRP 19-D4 Figure 1 - Process and Logic for Considering Risk in License Amendment Reviews Non-risk-informed submittal that meets deterministic requirements Request raises issues that could N Application protection -"special circumstance" acceptable believed to exist (see Note) y Note. "Special circumstances" may exist if 1. The situation was not identified or addressed in dmv * Inform/engage licensee rgarding risk concern * Inform management of risk concern os regulanons, and c regulation ifencoun 2. The reviewer has reflected bv the licet belheve that the risk regarding special circmtances accppalecto and obtaining risk inrmationptable y "Special circumstance" exists; request and evaluate risk information =lopment ould be important enough to warrant a new tered on a widespread basis. knowledge that the risk impact is not ising basis analysis, and has reason to increase would warrant denial if the request risk-informed application. I RG 1. 174 safety principles N arm not met (quantitative and - m .Application qualitative- >acceptable Y Questions raised regarding adequate protection; perform in-depth reassessment of all factors of adequate protection when riAplcaik ad ap ll other factors are coier acceptable Reject application on the basis of inadequate protection SRP 19-D5 NRC FORM 335 U.S. NUCLEAR REGULATORY COMMISSION 1. REPORT NUMBER (2-89) (Assigned by