Document: NUREG-0800
Document ID: f60cdc8f-3c25-45c3-a1d3-b0f530961625
Document Type: srp
Title: DETERMINING THE TECHNICAL ADEQUACY OF PROBABILISTIC RISK
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1219/ML12193A107.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.1
CFR Part: 
CFR Title: 

Content:
plicable to any licensee amendment request submitted for U.S. Nuclear Regulatory Commission (NRC) review and approval for which information from a PRA is used to support the requested action. This SRP section will be used to support application-specific SRP sections that provide guidance for activities, including the following examples: • Changes to a plant's licensing basis (SRP Section 19.2). • Changes to allowed outage times and surveillance test intervals in plant-specific technical specifications (SRP Section 16.1). • Changes in the scope and frequency of tests on pumps and valves in a licensee's in- service test program (SRP Section 3.9.7). • Changes in the scope and frequency of inspections in a licensee's in-service inspection program (SRP Section 3.9.8). • Implementation of National Fire Protection Association (NFPA) 805 in accordance with Title 10 of the Code of Federal Regulations (10 CFR), Paragraph 50.48(c) (SRP Section 9.5.1.2). The above SRP sections address reviewing the application in terms of some or all of the following: • Structures, systems, and components (SSCs); operator actions; and plant operational characteristics affected by the application. • Cause-effect relationships between the change and the above SSCs, operator actions, and plant operational characteristics. • Mapping of the cause-effect relationships onto PRA model elements. • Identification of the PRA results that will be used in the decision making. • Scope of the PRA needed to support the decision. The PRA should be of sufficient technical adequacy to support its role in the decision making process. The existing SRP sections only give guidance on assessing the use of the PRA results. RG 1.200 and this SRP Section 19.1 give specific guidance on assessing the adequacy of the baseline PRA. 19.1- 3 Rev. 3 – September 2012 This SRP section may be used in conjunction with an application-specific SRP section such as SRP Section 19.0, Section 19.2, Section 16.1,