Document: NRC Regulatory Guide
Document ID: b3da4d67-03d8-4f52-b04b-8e76d142c857
Document Type: regulatory_guide
Title: 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 + HISTORY - HISTORY 05/2019 – Issued DG-1353 , Proposed Revision 0
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1831/ML18312A242.pdf
Revision Date: 2023-06
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Section ID: RG-1.233
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provides guidance for informing the licensing basis and determining an appropriate level of information for parts of preliminary or final safety analysis reports for advanced non-LWRs. The regulations at 10 CFR 50.34(a), 10 CFR 50.34(b), 10 CFR 52.47, 10 CFR 52.79, and 10 CFR 52.157 require that applications for a construction permit, operating license, DC, COL, or ML, respectively, include the level of design information sufficient to enable the Commission to reach a conclusion on safety questions before issuing a license or certification. Applications for an SDA are likewise required by 10 CFR 52.137 to include information needed for NRC staff approval. Background This RG endorses the principles and methodology in Nuclear Energy Institute (NEI) 18-04, “Risk-Informed Performance-Based Guidance for Non-Light Water Reactor Licensing Basis Development,”1 as one acceptable method for informing the licensing basis and determining the appropriate scope and level of detail for parts of applications for licenses, certifications, and approvals for non-LWRs. The staff takes no significant exceptions to the guidance in NEI 18-04 but does provide clarifications and points of emphasis as detailed in this RG. NEI 18-04 outlines an approach for use by reactor developers to select LBEs, classify SSCs, determine special treatments and programmatic controls, and assess the adequacy of a design in terms of providing layers of DID. The methodology described in NEI 18-04 and this guide also provides a general approach for identifying an appropriate scope and depth of information that applications for licenses, certifications, and approvals should provide. The variety of non-LWR technologies, which use different coolants, fuel forms, and safety system designs, make it necessary to define a methodology as opposed to developing prescriptive guidance on the content of applications, such as that prepared for light-water reactors (LWRs). This methodology also provides a logical and