Document: NRC Regulatory Guide
Document ID: 22ccfd5e-c5d8-4615-a02c-32369aa9f533
Document Type: regulatory_guide
Title: Acceptability of Probabilistic Risk Assessment Results for Risk-Informed Activities (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1930/ML19308B636.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.200
CFR Part: 
CFR Title: 

Content:
---------- No objection -------------------- Table 9-2.3-1 HLR-XPR-A The word ‘significant’ should be added in this HLR in Table 9-2.3-1 and in the HLR statement in Table 9-2.3- 2(a) Clarification The external hazard PRA plant model shall include wind-caused significant initiating events and other failures that are significant contributors that can … shall include wind-caused significant initiating events and other failures that are significant contributors that can … Tables 9-2.3-2(a) and 9-2.3-4(c) Table 9-2.3- 2(a) The word ‘significant’ should be added in the HLR statement in Table 9-2.3-2(a) Clarification The external hazard PRA plant model shall include wind-caused significant initiating events and other failures DG-1362, Appendix A, Page A-46 Table A-9. Staff Position on ASME/ANS RA-Sa-2009, Part 9, Technical and Peer Review Requirements for At-Power Other External Hazards Index No Issue Position Resolution that are significant contributors that can … XPR-A thru XPR-A11 -------------------- No objection -------------------- XPR-B1 thru XFPR-B2 -------------------- No objection -------------------- XPR-C1 thru XPR-C3 -------------------- No objection -------------------- Section 9-3 9-3.1 thru 9- 3.4.5 -------------------- No objection -------------------- Section 9-4 References Clarification See global comment on references at start of Table A-1. DG-1362, Appendix A, Page A-47 Table A-10. Staff Position on ASME/ANS RA-Sa-2009 Part 10, Technical and Peer Review Requirements for At-Power Seismic Margins Assessment The staff does not endorse the material in this Part of the standard, and as such, does not have a position (i.e., no objections, no objection with clarification, or no objection with qualification) on any of the material contained in Part 10 of the standard. However, it should be noted, that consistent with the Commission-endorsed phased PRA Quality Initiative, all risk contributors that cannot be shown as insignificant, should be