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:
6 specifies the information to be included in an application for a light-water reactor (LWR), although the guidance may also be generally useful for non-LWR applications. • RG 1.232, “Guidance for Developing Principal Design Criteria for Non-Light-Water Reactors” (Ref. 8), contains guidance on adapting the general design criteria in 10 CFR Part 50, Appendix A, “General Design Criteria for Nuclear Power Plants,” to non-LWR designs. Non-LWR designers, applicants, and licensees may use this guidance to develop principal design criteria (PDC) for any non-LWR designs, as required by the applicable NRC regulations. RG 1.232 also contains guidance for modifying and supplementing the general design criteria to develop PDC for two types of non-LWR technologies: sodium-cooled fast reactors and modular high-temperature gas-cooled reactors. • RG 1.233, “Guidance for a Technology-Inclusive, Risk-Informed, and Performance-Based Methodology to Inform the Licensing Basis and Content of Applications for Licenses, Certifications, and Approvals for Non-Light-Water Reactors” (Ref. 9), contains the NRC’s endorsement of the Licensing Modernization Project (LMP) methodology in NEI 18-04, Revision 1, “Risk-Informed Performance-Based Guidance for Non-Light Water Reactor Licensing Basis Development,” (Ref. 10) for selecting licensing-basis events (LBEs); classifying structures, systems, and components (SSCs); and assessing the adequacy of defense-in-depth (DID). Non-LWR reactor designers, applicants, and licensees may use this guidance to develop the content of their applications for non-LWR designs. Specifically, for applicants following the guidance in NEI 21-07, Revision 1, the LMP methodology is the baseline approach for developing the application. Purpose of Regulatory Guides The NRC issues RGs to describe methods that are acceptable to the staff for implementing specific parts of the agency’s regulations, to explain techniques that the staff uses in evaluating