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
Chapter: 
Section ID: RG-1.233
CFR Part: 
CFR Title: 

Content:
ory requirements. This is not considered backfitting as defined in 10 CFR 50.109(a)(1) or a violation of any of the issue finality provisions in 10 CFR Part 52. Additionally, an existing applicant may be required to comply with new rules, orders, or guidance if 10 CFR 50.109(a)(3) applies. If a licensee believes that the NRC is either using this RG or requesting or requiring the licensee to implement the methods or processes in this RG in a manner inconsistent with the discussion in this Implementation section, then the licensee may file a backfit appeal with the NRC in accordance with the guidance in NRC Management Directive 8.4, “Management of Facility-Specific Backfitting and Information Collection” (Ref. 32), and in NUREG-1409, “Backfitting Guidelines,” (Ref. 34). DG-1353, Page 28 ACRONYMS/ABBREVIATIONS AOO anticipated operational occurrence BDBE beyond-design-basis event CFR Code of Federal Regulations COL combined license DC design certification DBA design-basis accident DBE design-basis event DBEHL design-basis external hazard level DG draft regulatory guide DID defense in depth DOE U.S. Department of Energy F-C frequency-consequence IAEA International Atomic Energy Agency IDP integrated decision panel ITAAC inspections, tests, analyses, and acceptance criteria ITP Initial Test Program LBE licensing-basis event LMP Licensing Modernization Project LWR light-water reactor MHTGR modular high-temperature gas-cooled reactor ML manufacturing license mrem millirem NEI Nuclear Energy Institute NRC U.S. Nuclear Regulatory Commission NSRST nonsafety-related with special treatment OMB Office of Management and Budget PRA probabilistic risk assessment PRISM Power Reactor Innovative Small Module RFDC required functional design criteria RG regulatory guide RTNSS regulatory treatment of nonsafety systems SDA standard design approval SR safety related SRM staff requirements memorandum SSC structure, system, and component TS technical specification U.S.C. United States