Document: NRC Regulatory Guide
Document ID: db0c5d18-2d27-4720-8935-40b402e52f9a
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
Chapter: 
Section ID: RG-1.233
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CFR Title: 

Content:
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 structured approach to identifying the safety or risk significance of SSCs and associated programmatic controls. The methodology’s focus on those measures needed to address risks posed by non-LWR technologies will help an applicant provide sufficient information on the design and programmatic controls, while avoiding an excessive level of detail on less important parts of a plant. This approach will in turn lead to more effective and efficient NRC reviews. NEI 18-04 incorporates the resolutions to several past policy issues related to advanced reactors into a consolidated methodology to support the design and licensing of non-LWRs. The methodology is sufficiently developed to provide additional clarity on how past Commission decisions on advanced reactors can be reflected in the design and licensing processes.2 Per the Commission’s Policy Statement 1 This guide was developed based on a working draft of NEI 18-04 designated “Draft Report Revision N,” which is available under ADAMS Accession No. ML18271A172. Revision 0 of NEI 18-04 is expected to be issued while this draft RG is available for comment and, if needed, a Rev. 1 of NEI 18-04 may be issued to address both lessons learned during use of the guidance by developers and further interactions with the staff during development of the final RG. NEI 18-04 includes a glossary defining key terms such LBE, AOO, DBE, and BDBE, some of which differ from the definitions for similar phrases in NRC regulations and guidance developed for LWRs. Applicants referencing this RG are expected to use the terminology in NEI 18-04 and, as needed, identify exceptions to and exemptions needed from NRC regulations. 2 Given the long evolution of preparing and issuing guidance for the licensing of non-LWR designs (e.g., proposals and