Document: NRC Regulatory Guide
Document ID: edb75cf4-27e1-4166-989c-25781bd48b98
Document Type: regulatory_guide
Title: Fire Protection Program for Nuclear Power Plants During Decommissioning and Permanent Shutdown (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2007/ML20078K920.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.191
CFR Part: 
CFR Title: 

Content:
fire protection systems and features; d. administrative controls governing general fire prevention activities such as control of combustibles and ignition sources; e. controls governing plant features important to life safety and plant evacuation in a fire; and f. controls governing fire detection and notification, firefighting capability, and emergency response. 6.3 Water Supply During decommissioning, the plant fire water supply system should be maintained, and the system should be capable of providing the maximum water flow needed to supply automatic fire suppression systems and manual firefighting capability. In accordance with Section 5.3.1 of NFPA 805, the onsite fire protection water supply and distribution systems should be evaluated to ensure compliance with Section 3.5, “Water Supply,” of NFPA 805. Regulatory Position C.4.3.1 of this guide describes the factors considered in determining the adequacy of the fire water supply, including the protection from freezing for firefighting water supply, distribution, and delivery systems (e.g., sprinklers and standpipes). 6.4 Automatic and Manual Fire Suppression Systems NFPA 805 operating fire protection programs identify automatic and manual fire suppression systems that are credited to meet the nuclear safety performance criteria of NFPA 805, Chapter 1, or for defense-in-depth. During decommissioning activities, licensees should continuously evaluate plant areas to determine the automatic and manual fire suppression systems needed to meet the nuclear safety performance criteria described in their licensing basis and to ensure fire protection programs remain commensurate with the changes in fire hazards and the potential release of hazardous and radiological materials to the environment. The design of automatic and manual water-based fire suppression systems DG-1370, Page 23 should meet Section 3.9 of NFPA 805, and the design of gaseous fire suppression systems should meet Section 3.10 of NFPA 805. 6.5