Document: NRC Regulatory Guide
Document ID: 47b09be1-4bf8-45f9-a099-7fed871c09bd
Document Type: regulatory_guide
Title: Plant-Specific, Risk-Informed Decisionmaking: Inservice Testing (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2114/ML21140A055.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.175
CFR Part: 
CFR Title: 

Content:
eroded. In carrying out this process, the licensee will make a number of decisions based on the best available information. Some of this information will derive from deterministic engineering practice and some will be probabilistic in nature, resulting from PRA studies. The licensee is responsible for ensuring that it develops its RI-IST program using a well-reasoned and integrated decision process that considers both forms of input information (deterministic engineering and probabilistic). This important decisionmaking process may require participation of special combinations of licensee expertise (licensee staff), depending on technical and other issues, and require the support of outside consultants. Industry documents have generally referred to the use of an expert panel for such decisionmaking. The appendix to this RG discusses a number of IST-specific issues that might arise in expert panel deliberations. Consideration of International Standards The International Atomic Energy Agency (IAEA) works with member states and other partners to promote the safe, secure, and peaceful use of nuclear technologies. The IAEA develops Safety Requirements and Safety Guides for protecting people and the environment from harmful effects of ionizing radiation. This system of safety fundamentals, safety requirements, safety guides, and other relevant reports, reflects an international perspective on what constitutes a high level of safety. To inform its development of this RG, the NRC staff considered IAEA Safety Requirements and Safety Guides1 1 Such information related to this guide may be found at WWW.IAEA.Org/ or by writing the International Atomic Energy Agency, P.O. Box 100 Wagramer Strasse 5, A-1400 Vienna, Austria; telephone (+431) 2600-0; fax (+431) 2600-7; or e-mail Official.Mail@IAEA.Org. It should be noted that some of the international recommendations do not correspond to the requirements specified in the NRC’s regulations and the NRC’s requirements take