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: 

Content:
cedures and operations, plant systems (including operational history), system response and dependencies, operator training and response, details of the plant-specific PRA, and regulatory guidance. The decisionmaking team should have been advised of the specifics of all proposed changes and the relevant background information associated with the licensing action. In addition, since the judgement will depend, in part, on the results of a risk analysis, it is important that all team members be provided with an interpretation of the results of the risk model and the potential limitations of that model. The licensee's integrated decisionmaking process should take into account the principles and expectations described in Section II of this SRP chapter. In formulating the findings, the licensee should account for both probabilistic and traditional engineering considerations. This should include information from the risk analysis, traditional engineering evaluations and insights, quantitative sensitivity studies, operational experience and historical plant performance, engineering judgment, and current regulatory requirements. Potential limitations of the risk model should be identified and resolved. In .addition, the licensee should individually consider and evaluate all SSCs that are affected by the proposed application but are not modeled in the PRA, on the basis of guidelines similar to those provided later in this appendix or in Section C.2 of Appendix C to this SRP chapter. Finally, the licensee's conclusions should be sufficiently robust with regard to different plausible assumptions and analyses. When findings or iconclusions depend, in part, on the use of compensatory measures, the licensee should justify why the compensatory measures are an appropriate substi~tjte for a proposed relaxation in current requirements. The compensatory measures should also become part of the plant's licensing basis. Technical information basis for applications involving risk