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The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

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Interim Staff Guidance related to Materials, Decommissioning, and Associated Environmental Management

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Interim Staff Guidance (ISG) Topic Status Comment
REFS-ISG-2024-01 Use of the Decommissioning Trust Fund During Operations for Major Radioactive Component Disposal Final A notice of availability of the final REFS-ISG-2024-01 was published in the Federal Register on August 5, 2024 (89 FR 63447). The responses to the public comments on the draft ISG can be found in the comment response appendix (Appendix A of the ISG).
NMSS-ISG-02 Guidance for Conducting the Section 106 Process of the National Historic Preservation Act for Uranium Recovery Licensing Actions. Final A notice of availability of the final NMSS-ISG-02 was published in the Federal Register on September 19, 2019 (84 FR 49352). The responses to the public comments on the draft ISG can be found in the comment response appendix (Appendix B of the ISG).
DUWP-ISG-01 Evaluations of Uranium Recovery Facility Surveys of Radon and Radon Progeny in Air and Demonstrations of Compliance with 10 CFR 20.1301 Final A notice of availability of the revised draft FSME-ISG-01 was published in the Federal Register on March 27, 2014 (79 FR 17194). The NRC's responses to comments received on the revised draft ISG are provided by document dated May 2018 and issued on June 7, 2019.
DUWP-ISG-02 Radiological Survey and Dose Modeling of the Subsurface to Support License Termination Final The guidance is focused on surveys of open surfaces in the subsurface (open excavations, building substructures, and materials planned for reuse), as well as support for use of RESRAD for submerged substructures, risk-significant parameters, and estimation of dose from existing groundwater contamination. The Federal Register Notice 89 FR 79317 announcing availability of the ISG was issued on September 27, 2024.
DUWP-ISG-03 Contamination Control, Radiological Survey, and Dose Modeling Considerations to Support License Termination at Sites With Environmental Discrete Radioactive Particle Contamination Draft The guidance is focused on contamination control, radiological survey and dose modeling considerations for decommissioning sites with the potential for environmental discrete radioactive particle contamination. The Federal Register Notice 89 FR 78917 announcing availability of the ISG for public comment was issued on 9/26/2024. The public comment period ends on 10/28/2024.
NMSS-ISG-03 Guidance for the Implementation of 10 CFR Part 35 Training and Experience Requirements Final The ISG provides guidance on the implementation of the training and experience (T&E) requirements in 10 CFR Part 35. This ISG clarifies the roles and responsibilities of individuals subject to T&E requirements, outlines the information needed to demonstrate compliance with NRC regulations, and provides step-by-step instructions for adding authorized individuals to medical-use licenses.

Page Last Reviewed/Updated Monday, April 14, 2025