Document: NRC Regulatory Guide
Document ID: 99fe445b-c440-4921-ba8f-841c8f236046
Document Type: regulatory_guide
Title: Nuclear Power Plant Instrumentation for Earthquakes + HISTORY - HISTORY 09/2016 – DG-1332 , Proposed Revision 3 04/2015 – Periodic Review on Revision 2 – Revise 02/1995 – DG-1033, Third Proposed Revision 2 11/1992 – DG-1016, Second Proposed Revision 2 07/1981 – Draft MS 140-5 , First Proposed Revision 2 (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1610/ML16104A220.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.12
CFR Part: 
CFR Title: 

Content:
nstrumentation type, locations, characteristics, and maintenance, that the staff of the U.S. Nuclear Regulatory Commission (NRC) considers acceptable for nuclear power plants. Applicability This guide applies to applicants and reactor licensees subject to Title 10 of the Code of Federal Regulations (10 CFR), Part 50, “Domestic Licensing of Production and Utilization Facilities” (Ref. 1), and 10 CFR Part 52 “Licenses, Certifications, and Approvals for Nuclear Power Plants” (Ref. 2). Applicable Regulations • Appendix S to 10 CFR Part 50, “Earthquake Engineering Criteria for Nuclear Power Plants,” provides the engineering criteria for nuclear power plants. - Appendix S, Paragraph IV(a)(3), requires shutdown of the nuclear power plant if vibratory ground motion exceeds that of the operating basis earthquake ground motion (OBE) occurs. - Appendix S, Paragraph IV(a)(4), requires that suitable instrumentation must be provided so that the seismic response of nuclear power plant features important to safety can be evaluated promptly after an earthquake. Paragraph IV(a)(4) also requires that prior to resuming operations, the licensee must demonstrate to the Commission that no functional damage has occurred to those features necessary for continued operation without undue risk to the health and safety of the public and the licensing basis is maintained. DG-1332, Page 2 Related Guidance • RG 1.166, “Earthquake Planning and Immediate Nuclear Power Plant Operator Postearthquake Actions” (Ref. 5), provides guidance for a timely evaluation after an earthquake of the recorded instrumentation data and for determining whether plant shutdown is required by 10 CFR Part 50. • NUREG-0800, “Standard Review Plan (SRP) for the review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition” (Ref. 6) provides guidance to the NRC staff in their review of Safety Analysis Reports submitted as part of a license application. - Section 2.5.1 “Geologic