Document: NRC Regulatory Guide
Document ID: 666e1303-0170-4974-a7d6-af27eb586524
Document Type: regulatory_guide
Title: Risk-Informed, Performance-Based Fire Protection for Existing Light-Water Nuclear Power Plants (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2104/ML21048A448.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.205
CFR Part: 
CFR Title: 

Content:
he performance goals, performance objectives, and performance criteria specified in NFPA 805 related to nuclear safety and radiological release; (2) maintains safety margins; and RG 1.205, Revision 2, Page 9 (3) maintains fire protection defense in depth (fire prevention, fire detection, fire suppression, mitigation, and postfire safe-shutdown capability). 2.2.3 Risk-Informed or Performance-Based Alternatives to Compliance with NFPA 805 Under 10 CFR 50.48(c)(4), a licensee may request NRC approval (by license amendment) of the use of alternative risk-informed or performance-based methods (i.e., methods that differ from those prescribed by NFPA 805) to demonstrate compliance with 10 CFR 50.48(c). A licensee should provide sufficient information in the license amendment request to allow the NRC staff to determine that the proposed alternatives do the following: (1) satisfy the performance goals, performance objectives, and performance criteria specified in NFPA 805 related to nuclear safety and radiological release; (2) maintain safety margins; and (3) maintain fire protection defense in depth (fire prevention, fire detection, fire suppression, mitigation, and postfire safe-shutdown capability). The license amendment request should include complete and concise details for each of the proposed methods used to demonstrate that an alternative to compliance with NFPA 805 is acceptable. The license amendment request may reference generic methods (e.g., topical reports) that the NRC has previously approved and through which the licensee can demonstrate that the alternative is applicable for its intended use. If the proposed methods have been adequately described in the license amendment request and accepted by the NRC, these methods may be applied to the licensee’s FPP upon issuance of a license amendment approving the methods. A licensee may apply these approved methods within the limits specifically described in its licensing basis to implement plant changes that affect