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NRC RIN: 3150-AL48 Publication ID: 2026 
Title: ●In-situ Recovery Monitoring and Decommissioning Timeliness [NRC-2025-1204] 
Abstract:

This rulemaking would amend the NRC’s regulations to codify risk-informed groundwater protection standards for ISR facilities and reduce post-restoration monitoring, and risk-inform decommissioning timeliness regulations and increase licensing flexibility to allow site-specific extensions for both reactors and materials facilities. This rule is being issued per direction in EO 14300.

 
Agency: Nuclear Regulatory Commission(NRC)  Priority: Other Significant 
RIN Status: First time published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: Undetermined  Unfunded Mandates: No 
EO 14192 Designation: Deregulatory 
CFR Citation: 10 CFR 30    10 CFR 40    10 CFR 70    10 CFR 72    10 CFR 73    10 CFR 150    ...     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 42 U.S.C. 2201    42 U.S.C. 5841   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  07/00/2026 
NPRM Comment Period End  08/00/2026 
Final Rule  11/00/2026 
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: Undetermined 
Federalism: Undetermined 
Included in the Regulatory Plan: No 
RIN Information URL: https://www.nrc.gov/about-nrc/governing-laws/advance-act  
RIN Data Printed in the FR: No 
Related RINs: Merged with 3150-AI40 
Agency Contact:
Caylee Kenny
Nuclear Regulatory Commission
Office of Nuclear Material Safety and Safeguards,
Washington, DC 20555-0001
Phone:301 415-7150
Email: caylee.kenny@nrc.gov