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:
10 CFR 50.155(b)(2). The EDMGs provide strategies and guidelines to maintain or restore core cooling, containment, and spent fuel pool cooling capabilities under the circumstances associated with loss of large areas of the plant due to explosions or fire. The EDMGs provide strategies and guidelines in the following areas: firefighting, operations to mitigate fuel damage, and actions to minimize radiological release. NEI 06-12, “B.5.b Phase 2 & 3 Submittal Guideline” (Ref. 36), provides guidance on how to develop the application content for demonstrating that the requirements of 10 CFR 50.155(b)(2) are met.9 5. Integrated Evaluations Section C.4 of NEI 21-07, Revision 1, provides guidance on documenting the integrated evaluations performed using the LMP process in NEI 18-04, Revision 1. Chapter 4 of a SAR following NEI 21-07, Revision 1, should provide the overall plant risk performance summary for the proposed 9 SRP Section 19.4, “Strategies and Guidance to Address Loss-of-Large Areas of the Plant Due to Explosions and Fires” provides guidance to the NRC staff for review of this topic. The SRP is intended to make information about regulatory matters widely available and to improve communication among the NRC, interested members of the public, and the nuclear power industry, thereby increasing understanding of the NRC’s review process. DG-1404, Revision 1, Page 21 design. This integrated plant evaluation assesses plant performance against the following three cumulative risk targets, and describes the margin between these targets and the predicted plant performance: • The total mean frequency of exceeding a site boundary dose of 100 millirem from all LBEs should not exceed 1/plant-year. The value of 100 millirem is taken from the annual cumulative exposure limits 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