Document: NRC Regulatory Guide
Document ID: 5e2766ae-dd3b-4b1a-a6bb-48bde2dcbf97
Document Type: regulatory_guide
Title: Performance-Based Emergency Preparedness for Small Modular Reactors, Non-Light-Water Reactors, and Non-Power Production or Utilization Facilities
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1808/ML18082A044.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.242
CFR Part: 
CFR Title: 

Content:
nt data on the facility performance, and model the transport of fission products across all barriers and pathways to the environs. 9 RG 1.174, “An Approach for Using Probabilistic Risk Assessment In Risk-Informed Decisions on Plant Specific Changes to the Licensing Basis,” describes an integrated decision making approach that the NRC has found acceptable. 10 NUREG-1855, “Guidance on the Treatment of Uncertainties Associated with PRAs in Risk-Informed Decision Making,” provides further guidance on addressing uncertainties. DG-1350, Appendix B, Page B-2 B-5. The PRA and source term models should be as realistic as possible so that the values and limitations of any mechanism or barrier are not obscured.