Document: NRC Regulatory Guide
Document ID: 8e45dce1-e1e7-4415-b1dd-7e2a610e545b
Document Type: regulatory_guide
Title: Fire Protection for Nuclear Power Plants (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2023/ML20231A835.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.189
CFR Part: 
CFR Title: 

Content:
NRC should review and accept the industry guidance before its application to specific fire PRAs. The NRC should also review the results of the plant-specific peer reviews. All types and levels of fire PRAs should be subject to a peer review. If adequate industry guidance is not available for conducting a fire PRA peer review, the NRC should review the fire PRA for acceptability. Licensees may use PRA, risk insights gained from other methods, or both in support of proposed changes to the plant licensing basis, such as license amendment requests per 10 CFR 50.90, “Application for amendment of license, construction permit, or early site permit,” and 10 CFR 50.92, “Issuance of amendment,” or for exemption requests per 10 CFR 50.12, “Specific exemptions.” Regulatory Guide 1.174, “An Approach for Using Probabilistic Risk Assessment in Risk-Informed Decisions on Plant-Specific Changes to the Licensing Basis,” provides guidelines for the use of PRA in support of plant changes that require NRC approval but does not apply to plant changes that are not subject to NRC approval. DG-1359, Appendix A, Page A-2 REFERENCES FOR APPENDIX A11 A-1. NRC, NUREG/CR-6850, “EPRI/NRC-RES Fire PRA Methodology for Nuclear Power Facilities,” Washington, DC, September 2005. (ADAMS Accession Nos. ML052580075 and ML052580118) A-2. ANS, ANSI/ANS-58.23-2007, “Fire PRA Methodology,” Washington, DC.12 11 Publicly available NRC published documents are available electronically through the NRC Library on the NRC’s public Web site at http://www.nrc.gov/reading-rm/doc-collections/ and through the NRC’s Agencywide Documents Access and Management System (ADAMS) at http://www.nrc.gov/reading-rm/adams.html. The documents can also be viewed online or printed for a fee in the NRC’s Public Document Room (PDR) at 11555 Rockville Pike, Rockville, MD. For problems with ADAMS, contact the PDR staff at (301) 415-4737 or (800) 397-4209; fax (301) 415-3548; or e mail pdr.resource@nrc.gov. 12