Document: NRC Regulatory Guide
Document ID: acab976c-e936-49be-8c59-865767973599
Document Type: regulatory_guide
Title: Guidance for a Technology-Inclusive Content of Application Methodology to Inform the Licensing Basis and Content of Applications for Licenses, Certifications, and Approvals for Non-Light-Water Reactors (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2319/ML23194A194.pdf
Revision Date: 2023-09
Chapter: 
Section ID: RG-1.253
CFR Part: 
CFR Title: 

Content:
mits in 10 CFR Part 20, “Standards for Protection against Radiation” (Ref. 37). • The average individual risk of early fatality within 1 mile of the EAB from all LBEs, based on mean estimates of frequencies and consequences should not exceed 5×10-7/plant-year, to meet the NRC safety goal QHO for early fatality risk. • The average individual risk of latent cancer fatalities within 10 miles of the EAB from all LBEs, based on mean estimates of frequencies and consequences should not exceed 2×10-6/plant-year, to meet the NRC safety goal QHO for latent cancer fatality risk. Chapter 4 of a SAR following NEI 21-07, Revision 1, also documents the applicant’s assessment of the adequacy of DID for the plant design, addressing the three focus areas for DID adequacy: plant capability; programmatic capability; and integrated risk-informed, performance-based DID adequacy. The baseline DID adequacy evaluation results in this chapter and other SAR chapters should be documented in sufficient detail so that, before being implemented, proposed future changes to physical, functional, operational, or programmatic features of the facility can be effectively evaluated for their potential to reduce DID. C.5 Staff Position: NEI 21-07, Revision 1, Section C.4, on SAR Chapter 4, provides an acceptable method for developing information related to the integrated evaluations, which include the overall plant risk performance summary, margins between predicted plant performance and risk targets, and the documentation of DID adequacy with the following clarifications and additions: a. Addition: The NRC anticipates that the DID discussion at the CP stage may be limited to plant capabilities because programmatic capabilities may not have been established yet. In addition, while not all plant capability DID attributes may be fully addressed at the CP stage, qualitative performance-based objectives for DID may be useful in establishing performance boundaries for final safety analysis report