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NRC RIN: 3150-AK52 Publication ID: Fall 2023 
Title: Decommissioning Financial Assurance for Sealed and Unsealed Radioactive Materials [NRC-2017-0031] 

This rulemaking would amend the NRC's regulations to add radionuclides and corresponding possession values not currently listed in 10 CFR part 30 appendix B for calculating a licensee's decommissioning funding requirement to possess a radionuclide with a half-life greater than 120 days. It would also apply a uniform and more risk-informed method for setting possession values for all radionuclides listed in appendix B. The rulemaking will apply to all entities, including those in Agreement States, licensed to possess sealed or unsealed byproduct or special nuclear material with a half-life greater than 120 days. The NRC engaged the public during the pre-rulemaking rule stage through a meeting with stakeholders; letter to Agreement State Radiation Control Program Directors; regulatory basis notice; draft proposed rule; and public meeting. 

Agency: Nuclear Regulatory Commission(NRC)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 10 CFR 30    10 CFR 70   
Legal Authority: 42 U.S.C. 2201    42 U.S.C. 5841   
Legal Deadline:  None
Action Date FR Cite
Regulatory Basis   04/28/2022  87 FR 25157   
Regulatory Basis Comment Period End  06/27/2022 
Regulatory Basis Comment Period Reopened  07/19/2022  87 FR 42969   
Regulatory Basis Comment Period End  08/18/2022 
NPRM  01/00/2024 
Final Rule  04/00/2025 
Additional Information: The proposed rule package (SECY-23-0062, ADAMS Accession No. ML23010A137) was submitted to the Commission on July 24, 2023.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Gregory Trussell
Nuclear Regulatory Commission
Office of Nuclear Material Safety and Safeguards,
Washington, DC 20555-0001
Phone:301 415-6445