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:
nse Transition Process 2.1 Transition Schedule In 10 CFR 50.48(c), the NRC does not mandate a specific schedule for implementing an FPP that meets the provisions of NFPA 805. However, the Statement of Considerations for 10 CFR 50.48(c) states that the NFPA 805 license amendment will include a license condition imposing the use of NFPA 805, together with an implementation schedule. Licensees should include an implementation schedule with their request to adopt an FPP based on NFPA 805. 2.2 License Amendment Request 2.2.1 Uncertain Elements of Current Fire Protection Program The NRC may not have specifically approved certain aspects of the plant’s current FPP (e.g., through an approved request under 10 CFR 50.12, “Specific Exemptions”). This has resulted in uncertainty in licensees’ fire protection licensing bases. Licensees should submit elements of their plant’s FPP, such as the crediting of recovery actions and circuit analysis methods, if they want explicit approval of these elements under 10 CFR 50.48(c). Any submittal addressing these FPP elements should include sufficient detail to allow the NRC to assess whether the licensee’s treatment of these elements meets 10 CFR 50.48(c) requirements. 2.2.2 Performance-Based Methods for Fundamental Fire Protection Program Elements and Minimum Design Requirements In accordance with 10 CFR 50.48(c)(2)(vii), a licensee may request NRC approval (by license amendment) to use NFPA 805 performance-based methods in determining the licensee’s compliance with the FPP elements and minimum design requirements in Chapter 3 of NFPA 805. A licensee should provide sufficient information in the license amendment request to allow the NRC staff to determine that the performance-based approach does the following: (1) satisfies the 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,