Document: NRC Regulatory Guide
Document ID: 7fa0e9f9-cb40-463b-adc5-53fe2057e43f
Document Type: regulatory_guide
Title: Fresh and Spent Fuel Pool Criticality Analysis + HISTORY - HISTORY 08/2020 – DG-1373 , Proposed Revision 0
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2018/ML20182A788.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.240
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CFR Title: 

Content:
ce document for performing criticality analyses of fuel storage at LWR power plants was still necessary. NEI, in collaboration with the Electric Power Research Institute (EPRI), developed NEI 12-16 to fill this regulatory need. This guidance document represents NEI’s effort to outline current practices in nuclear criticality analyses for fuel storage in vaults or pools and to establish a technical basis for certain positions. The most recent version of NEI 12-16, Revision 4, incorporated the final NRC-approved version of the EPRI methodology in Technical Report 3002010613, “Benchmarks for Qualifying Fuel Reactivity Depletion Uncertainty – Revision 1,” (Ref. 15). The NRC issued a final safety evaluation for the topical report in a letter dated July 19, 2019 (Ref. 16). On September 26, 2019, NEI submitted NEI 12-16, Revision 4, (Ref. 17), and NEI seeks its endorsement by the NRC through a RG. This RG endorses, with clarifications and exceptions, the guidance described in NEI 12-16, Revision 4, as one acceptable approach to demonstrate compliance with 10 CFR 50.68(b). DG-1373, Page 6 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 Standards 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 considered IAEA Safety Requirements and Safety Guides1 pursuant to the Commission’s International Policy Statement (Ref. 18) and Management Directive and Handbook 6.6 (Ref. 19). In development of this RG, the NRC considered IAEA Specific Safety Guide (SSG-27), “Criticality Safety in the Handling of Fissile Material,”