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:
that involve the use of heat, sparks, or open flame and that are typically controlled by a formal work permit system controlled or reviewed by a fire protection engineer. Impairment. Degradation of a fire protection system that decreases the ability of the system to perform its intended functions. Independent spent fuel storage installation (ISFSI). A facility designed and constructed for the interim storage of spent nuclear fuel and other radioactive materials associated with spent fuel storage. Laydown areas. Locations for the temporary staging of materials before their use or disposal. Listed. Equipment or materials on a list published by a nationally recognized testing laboratory, inspection agency, or some other product evaluation organization that periodically inspects production of the listed equipment or materials. The list states that the equipment or materials meet nationally recognized standards and have been tested and found suitable for use in a specified manner. Monitored storage. The operations and conditions associated with a permanently shutdown plant that has no fuel in the reactor and for which decommissioning has been deferred to the future. Noncombustible material. A material that, in the form it is used and under anticipated conditions, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Also, a material with a structural base of noncombustible material, as defined above, with a surfacing not over 1/8-inch thick, that has a flame-spread rating not higher than 50 when measured using American Society DG-1370, Page 31 for Testing and Materials (ASTM) E-84 (1997), “Standard Test Method for Surface Burning Characteristics of Building Materials.”4 Performance-based approach. A method of implementation based on measurable performance goals and objectives. Permanently ceased operations. Operations have permanently ceased when a licensee certifies to the NRC that it has permanently stopped or will