Document: NRC Regulatory Guide
Document ID: 37f53017-d71c-4f3c-a2a4-ab67a8270066
Document Type: regulatory_guide
Title: Pre-Earthquake Planning, Shutdown, and Restart of a Nuclear Power Plant Following an Earthquake (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1826/ML18268A185.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.166
CFR Part: 
CFR Title: 

Content:
ould perform following an earthquake and for long-term post-earthquake evaluations. Therefore, this RG endorses ANSI/ANS-2.23-2016 and no longer endorses EPRI NP-6695. Harmonization with 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 standards DG-1337, Page 5 for protecting people and the environment from harmful effects of ionizing radiation. These standards provide a system of safety fundamentals, safety requirements, and safety guides reflecting an international consensus on what constitutes a high level of safety. Pertinent to this RG are: • IAEA Safety Reports Series No. 66, “Earthquake Preparedness and Response for Nuclear Power Plants” (Ref. 16), which draws upon insights from three multiunit nuclear power plants in Japan and one in Armenia that experienced beyond-design-basis earthquakes. It addresses pre-earthquake planning, actions to follow when an earthquake is felt, actions to take before the restart of the nuclear power plant, and short- and long-term post-earthquake actions. • IAEA Safety Guide NS-G-1.6, “Seismic Design and Qualification for Nuclear Power Plants” (Ref. 17), which provides guidance on seismic instrumentation. This RG incorporates guidelines on actions by licensees to demonstrate plant readiness for restart similar to those in IAEA Safety Reports Series No. 66 and seismic instrumentation similar to IAEA Safety Guide NS-G-1.6. Documents Discussed in Staff Regulatory Guidance This RG endorses the use of one or more codes or standards developed by external organizations, and other third party guidance documents. These codes, standards and third party guidance documents may contain references to other codes, standards or third party guidance documents (“secondary references”). If a secondary reference has itself been incorporated by reference into NRC regulations