Document: NRC Regulatory Guide
Document ID: cde52d5a-adf9-49be-9d1f-59449dfca895
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 coupled with SFR-E6 because it is important to determine and disposition and impact of these sources of uncertainty for pre-operational stage PRAs. Not identifying and dispositioning the impacts of the identified sources of model uncertainty, related assumptions, and reasonable alternatives for pre- operational stage PRAs can negatively influence the decisions made using these PRAs. Clarification SATISFY Requirement ESQ-E1 with the additional assumptions identified by each seismic technical sub-element in Requirement SHA-F3, fragility analysis, Requirement SFR-E6, SFR-E7, or both and system modeling, Requirement SPR-E6, SPR-E7 or both. Table 4.3.10.3-7 SPR-F1 through SPR-F5 ------------------------ No objection ---------------------------------- Section 4.3.10.4 Section 4.3.10.4.1 Section text ------------------------ No objection ---------------------------------- RG 1.247, Appendix A, Page A-48 Table A-11. Staff Position on ASME/ANS RA-S-1.4-2021, Technical Requirements for Seismic PRA Index No. Issue Position Resolution Section 4.3.10.4.2 Section text ------------------------ No objection ---------------------------------- Section 4.3.10.4.3 Section 4.3.10.4.3.1 Section text ------------------------ No objection ---------------------------------- Section 4.3.10.4.3.2 Section 4.3.10.4.3.2.1 Section text ------------------------ No objection ---------------------------------- Section 4.3.10.4.3.2.2 Section text ------------------------ No objection ---------------------------------- Section 4.3.10.4.3.2.3 Section text ------------------------ No objection ---------------------------------- Section 4.3.10.4.3.3.1 Section text ------------------------ No objection ---------------------------------- Section 4.3.10.4.3.3.2 Section text ------------------------ No objection ---------------------------------- Section 4.3.10.4.3.3.3 Section text ------------------------ No objection ---------------------------------- RG 1.247, Appendix A, Page A-49 Table A-12. Staff