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:
ection ---------------------------------- Section 4.3.10.4.3.3.3 Section text ------------------------ No objection ---------------------------------- RG 1.247, Appendix A, Page A-49 Table A-12. Staff Position on ASME/ANS RA-S-1.4-2021, Technical Requirements for Hazard Screening Analysis Index No. Issue Position Resolution Section 4.3.11 Section text ------------------------ No objection ---------------------------------- Section 4.3.11.1 Section text ------------------------ No objection ---------------------------------- Table 4.3.11.1-1 HLR-HS-A through HLR-HS-E ------------------------ No objection ---------------------------------- Table 4.3.11.1-2 HS-A1 through HS-A2 ------------------------ No objection ---------------------------------- HS-A3 Plant -specific hazards should be identified as part of the identification of hazards or hazard groups. If plant- specific hazards or hazard groups are not identified, the PRA model may exclude significant risk contributors, underestimate risk, or both. Clarification IDENTIFY site-, plant-, or and design-unique hazards and hazard groups not already identified in Requirement HS- A2. HS-A4 ------------------------ No objection ---------------------------------- Table 4.3.11.1-3 HS-B1 ------------------------ No objection ---------------------------------- HS-B2 Limiting reviews of information about regional-, industrial-, governmental-, and plant-funded evaluations for each hazard only to operating plants potentially excludes relevant hazard information for plants Clarification For PRAs performed on operating plants, REVEW information about regional-, industrial-, governmental-, and plant-funded evaluations for each hazard, if available. RG 1.247, Appendix A, Page A-50 Table A-12. Staff Position on ASME/ANS RA-S-1.4-2021, Technical Requirements for Hazard Screening Analysis Index No. Issue Position Resolution in the pre-operational stages of the plant life cycle. These types of reviews should be performed for any stage