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:
ts listed in the second column. Item # Draft Document Being Considered for Possible Update Comments 1 Note: The guidance described in this item in DG-1404, Revision 0, published for comment on May 25, 2023, can now be found in Appendix B of this document N/A 2 Draft interim staff guidance (ISG) is being considered for development associated with the relationship between the type of licensing applications and the Capability Categories of the supporting requirements in ASME/ANS RA-S-1.4-2021, “Probabilistic Risk Assessment Standard for Advanced Non-Light Water Reactor Nuclear Power Plant,” (i.e., NLWR PRA standard). This guidance, if issued, would supplement the guidance found in RG 1.247 for trial use. The guidance is being considered because some supporting requirements in the NLWR PRA standard are not applicable to certain plant applications or stages, while other supporting requirements need some clarification to understand how they can be achieved. 3 Draft Guide-1413 (proposed RG 1.254), “Technology- Inclusive Identification of Licensing Events for Commercial Nuclear Plants,” (ADAMS Accession No. ML22272A042) This guidance, if issued, would supplement the guidance found in RG 1.247 for trial use. The guidance would provide the staff’s technology-inclusive guidance for identifying initiating events, delineating event sequences and licensing events that can be used to inform the design basis, licensing basis, and content of applications for commercial nuclear plants. Several of the beginning steps proposed in this guidance are applicable to the development of a probabilistic risk assessment (PRA) 4 A Draft ISG is being considered for development that would provide guidance for treatment of consequence uncertainty in a PRA. The guidance, if issued, would supplement the guidance found in RG 1.247 for trial use. Key to the approach in RG 1.247 for trial use is the development of frequency consequence criteria. While guidance for DG-1404, Revision 1, App A,