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:
------ No objection ---------------------------------- Section 4.3.18.1 Section text ------------------------ No objection ---------------------------------- Table 4.3.18.1-1 HLR-RI-A through HLR-RI-D ------------------------ No objection ---------------------------------- Table 4.3.18.1-2 RI-A1 through RI-A3 ------------------------ No objection ---------------------------------- RI-A4 Using generic reporting requirements in place of application-specific reporting requirements may result in information important to the decision-making process not being provided. Such reporting requirements should be provided by the appropriate regulatory authority on an application-specific basis. Qualification USE a application-specific minimum reporting guidance frequency of 10-7 per plant- year for all modeled event sequence families or JUSTIFY an alternative. RI-A5 Using generic reporting requirements in place of application-specific reporting requirements may result in information important to the decision-making process not being provided and consequences may not be expressed in terms of dose units. Such reporting requirements should be provided by the appropriate regulatory authority on Qualification USE a application-specific minimum reporting guidance consequence of 10% of the consequences due to background radiation dose for consequence metrics associated with all modeled event sequence families or JUSTIFY an alternative. RG 1.247, Appendix A, Page A-81 Table A-19. Staff Position on ASME/ANS RA-S-1.4-2021, Technical Requirements for Risk Integration Index No. Issue Position Resolution an application-specific basis. Table 4.3.18.1-3 RI-B1 through RI-B3 ------------------------ No objection ---------------------------------- RI-B4 Use of the term “unscreened” may imply that an item was previously screened out and subsequently screened back into the PRA. However, this term is interpreted as meaning sources of radioactive material that were included in the PRA for