Document: NRC Regulatory Guide
Document ID: 7a56bfb8-74a8-4e94-beee-41e3e51e0cc2
Document Type: regulatory_guide
Title: Wide-Range Spent Fuel Pool Level Instrumentation + HISTORY - HISTORY 11/2015 – DG-1317 , Proposed Revision 0
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1424/ML14245A454.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.227
CFR Part: 
CFR Title: 

Content:
NTTF recommendation associated with enhanced SFP instrumentation both before and after the issuance of Order EA-12-051. On May 31, 2012, the NEI submitted NEI 12-02, Revision B (Ref. 16) for review by the NRC staff. In response to comments from the NRC staff and the public, NEI revised the guidance document and submitted Revision 1 of NEI 12-02 in August 2012. The NRC staff has reviewed NEI 12- 02, Revision 1 dated August 2012 and endorses it, with some clarifications and exceptions, as an acceptable method for demonstrating compliance with NRC Order EA-12-051 and the regulations in 10 CFR 50.155(c)(4). The regulations in 10 CFR 50.155(c)(4) make the requirements of NRC Order EA-12-051 generically applicable. These regulations require that licensees install reliable means of remotely monitoring wide-range SFP levels to support effective prioritization of event mitigation and recovery actions in the event of a beyond-design-basis external event. The SFP level instrumentation currently at nuclear power plants in the United States is typically narrow range and, therefore, only capable of monitoring normal and slightly off-normal conditions. The staff’s review of the events at Fukushima Dai- ichi has shown the benefits that can be derived from the availability of more diverse instrumentation. Reliable and available indication is essential to ensure plant personnel can effectively prioritize emergency actions during and after extreme natural events. External Documents Endorsed in This Guide This RG endorses, in part, the use of one or more codes, standards, or guidance documents developed by external organizations. 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 as a requirement, then licensees and applicants must comply with that standard as set forth in the