Document: NUREG-0800
Document ID: 7916b088-fb90-4163-84fe-027bd315bcc5
Document Type: srp
Title: REVIEW OF RISK INFORMATION USED TO SUPPORT PERMANENT PLANT-
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0717/ML071700658.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.2
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CFR Title: 

Content:
ncept. However, it is more straightforward simply not to allow for the relaxation of multiple programmatic requirements on a given component unless demonstrable justification is provided that the risk contribution from the component is negligible for conditions covered by the set of requirements. For example, if IST is relaxed on a given component, it would be preferable not to relax QA as well unless good arguments are given for allowing both. III.2.2.5.4 Risk Management One of the goals of the review should be to ensure that in the course of the licensee's engineering evaluations, principles of risk management are appropriately applied in the process of evaluating changes to current regulatory requirements. For the purposes of this SRP section, "risk management" refers to an approach to decisionmaking about safety that seeks to allocate available resources and worker dose in such a way as to minimize the risk to public health and safety from plant operations. The reviewers should recognize that there is a point of diminishing returns in risk reduction and that some residual risk will be associated with plant operation. Nonetheless, reviewers should expect that licensees will make an effort to identify reasonable and cost-effective measures to control this residual risk as part of the risk-informed regulatory process. Therefore, as a staff expectation, the process of risk management in risk-informed decisionmaking should not be biased toward eliminating requirements to the exclusion of enhancements that would convey a worthwhile safety benefit. Licensees are expected to apply risk insights in an unbiased way, and licensees who do not satisfy subsidiary safety objectives (as defined in Regulatory Guide 1.174) are expected to seek safety enhancements in conjunction with risk-informed applications. Therefore, when risk increases are proposed, reviewers should consider plant performance and past changes to the LB to ensure that there is no pattern for a systematic