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:
dditional guidance on acceptable operator manual actions. The licensee is responsible for demonstrating that the change has not resulted in an adverse effect on safe shutdown or noncompliance with the applicable NRC requirements. An appropriate analysis is required to demonstrate that the change is acceptable. The licensee’s failure to conduct the appropriate analysis is a failure to meet the plant’s fire protection license condition. The depth and scope of the analysis depend on the nature of the change and the type of analytical tool relied on to justify it. A change that does not maintain a sufficient margin of safety fails to meet the plant’s license condition. FPP changes that adversely affect the ability to achieve and maintain safe shutdown in the event of a fire and that do not comply with the FPP-related licensing basis need prior approval by the NRC in the form of an appropriate licensing action (i.e., exemption or license amendment). Changes submitted to the NRC as licensing actions should include a technical justification for the proposed alternative approach. 1.8.1.3 Exemptions, License Amendments, and the Standard License Condition A proposed change that alters compliance with a regulation requires an exemption from the regulation, in accordance with 10 CFR 50.12 or 10 CFR 52.7, as appropriate. If a proposed change alters a license condition or technical specification that was used to satisfy NRC requirements, the licensee should submit a license amendment request. When a change that falls within the scope of the changes allowed under the standard fire protection license condition is planned, the licensee’s evaluation should be made in conformance to the standard fire protection license condition to determine whether the change would adversely affect the ability to achieve and maintain safe shutdown. The assessment should include the effect on the fire hazards analysis and should consider whether SSCs for a success path for safe shutdown are