Document: NRC Regulatory Guide
Document ID: cde52d5a-adf9-49be-9d1f-59449dfca895
Document Type: regulatory_guide
Title: TRIAL - Acceptability of Probabilistic Risk Assessment Results for Non-Light Water Reactor Risk-Informed Activities
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2123/ML21235A008.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.247
CFR Part: 
CFR Title: 

Content:
recognized sources. Justification is provided for the use of generic data. • Characterization of economic factors includes consideration of the protective actions taken (e.g., evacuation, temporary or permanent relocation, offsite decontamination, crop disposal, and farmland interdiction). • Characterization of economic factors includes consideration of the economic characteristics of the region (e.g., the distribution of economic wealth and of economic activities such as farming). • The uncertainties related to the economic factors PRA analysis element are identified and characterized. The objective of the conditional consequence quantification is to integrate the models and data developed in the preceding technical elements to quantify results of interest. The radiological consequences associated with each release category are quantified. The characteristics and attributes needed to achieve the objectives of the conditional consequence quantification PRA analysis element are as follows: • Computer codes used for quantification are used within the limits of their applicability. • Proper code execution is verified. • Assumptions used to develop the radiological consequence analysis and limitations of the data, models, or computer codes are clearly identified. • The impact of significant assumptions and limitations on results of interest is adequately characterized. • Sources of model and parameter uncertainty for each element of the analysis are identified. • The impact of significant sources of model and parameter uncertainty on results of interest is characterized. • The impact of variability in meteorological conditions, as reflected in the input parameters related to meteorological observations, on results of interest is quantified. C.1.3.18 Risk Integration Probabilistic Risk Assessment Element This section identifies the objectives and the characteristics and attributes of the risk integration PRA element for an NLWR PRA that addresses all