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:
ar power plants licensed to operate before January 1, 1979, to the extent that— (1) Fire protection features proposed or implemented by the licensee have been accepted by the NRC staff as satisfying the provisions of Appendix A to BTP APCSB 9.5-1, reflected in NRC fire protection safety evaluation reports issued before the effective date of February 19, 1981; or (2) Fire protection features were accepted by the NRC staff in comprehensive fire protection safety evaluation reports issued before Appendix A to BTP APCSB 9.5-1was published in August 1976. o 10 CFR 50.48(c) incorporates National Fire Protection Association (NFPA) Standard 805, “Performance-Based Standard for Fire Protection for Light Water Reactor Electric Generating Plants,” 2001 Edition (Ref. 4), by reference with certain exceptions and allows licensees to voluntarily adopt and maintain an FPP that meets the requirements of NFPA 805 as an alternative to meeting the requirements of 10 CFR 50.48(b) or the plant-specific fire protection license conditions. All currently licensed plants may voluntarily adopt a risk-informed, performance-based FPP in accordance with 10 CFR 50.48(c) and NFPA 805. However, the guidance provided in this RG does not apply for licensees who adopt 10 CFR 50.48(c). That guidance is contained in RG 1.205, “Risk-Informed, Performance-Based Fire Protection for Existing Light-Water Nuclear Power Plants” (Ref. 5), as discussed below in the related guidance section. o 10 CFR Part 50, Appendix A, GDC 3, (Ref. 6), requires that structures, systems, and components (SSCs) important to safety be designed and located to minimize, consistent with other safety requirements, the probability and effect of fires and explosions. Noncombustible and heat-resistant materials shall be used wherever practical throughout the unit, particularly in locations such as the containment and control room. Fire detection and firefighting systems of appropriate capacity and capability shall be provided