Document: NRC Regulatory Guide
Document ID: 8a2332d3-66ca-40af-84e1-507db8b26559
Document Type: regulatory_guide
Title: TRIAL - Acceptability of Probabilistic Risk Assessment Results for Non-Light Water Reactor Risk-Informed Activities
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2123/ML21235A008.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.247
CFR Part: 
CFR Title: 

Content:
be shown to be acceptable for severe accident concerns, in part, by completing a PRA and considering the severe accident vulnerabilities the PRA exposes, along with the insights that it may add to the assurance of no undue risk to public health and safety. • The Commission’s advanced reactor policy statement (Ref. 23) articulates that all new nuclear power plant designs should meet the Commission’s safety goals (Ref. 24). • An ongoing rulemaking effort, “Incorporation of Lessons Learned from New Reactor Licensing Process (10 CFR Parts 50 and 52 Licensing Process Alignment),” Docket NRC-2009-0196, RIN-3150-AI66,3 may add PRA-related requirements for 10 CFR Part 50 CP and OL applications that will be similar to the existing requirements for 10 CFR Part 52 licenses, certifications, and approvals. On January 14, 2019, the President signed into law the Nuclear Energy Innovation and Modernization Act (Ref. 25). Consistent with Section 103 of the act, the NRC staff has begun to establish a “Risk-Informed, Technology-Inclusive Regulatory Framework for Advanced Reactors,” Docket NRC-2019-0062, RIN 3150-AK31,4 for optional use by applicants for new commercial advanced nuclear reactor licenses by December 31, 2027. Specifically, this rulemaking activity will create a new 10 CFR Part 53, which is tentatively titled “Licensing and regulation of advanced nuclear reactors.” 3 Further information about this rulemaking (including the proposed schedule) is provided at https://www.nrc.gov/reading- rm/doc-collections/rulemaking-ruleforum/active/ruledetails.html?id=27. 4 Further information about this rulemaking (including the proposed schedule) is provided at https://www.nrc.gov/reading- rm/doc-collections/rulemaking-ruleforum/active/ruledetails.html?id=1108. RG 1.247, Page 12 The NRC staff positions in this RG applies to NLWRs that are intended to be installed and operated at a fixed site (stationary reactors). These include (1) reactors that are constructed at a