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:
for the unchanged fire protection systems will not change. For modifications to an existing fire protection system that are permitted by the code of record, the staff does not require that the system be brought into compliance with the current edition of the code. 1. Fire Protection Program In accordance with 10 CFR 50.48, each operating nuclear power plant must have a fire protection plan. The plan should establish the fire protection policy for the protection of SSCs important to safety at each plant and the procedures, equipment, and personnel required to implement the program at the plant site. The primary objectives of FPPs at U.S. nuclear plants are to minimize both the probability of occurrence and the consequences of fire. To meet these objectives, the FPPs for operating nuclear power plants are designed to provide reasonable assurance, through defense-in-depth, that a fire will not prevent the necessary safe-shutdown functions from being performed and that radioactive releases to the environment in the event of a fire will be minimized The FPP should extend the concept of defense-in-depth to fire protection in fire areas important to safety, with the following three objectives: a. Prevent fires from starting. b. Detect rapidly, control, and extinguish promptly those fires that do occur. c. Provide protection for SSCs important to safety so that a fire that is not promptly extinguished by the fire suppression activities will not prevent the safe shutdown of the plant. In accordance with 10 CFR 50.48, the fire protection plan must do the following: a. Describe the overall FPP for the facility. b. Identify the various positions within the licensee’s organization that are responsible for the program. DG-1359, Page 14 c. State the authorities that are delegated to each of these positions to implement those responsibilities. d. Outline the plans for fire protection, fire detection and suppression, and limitation of fire damage. e. Describe the administrative