2025-22230: List of Approved Spent Fuel Storage Casks: NAC International, Inc., NAC-UMS® Universal Storage System, Certificate of Compliance No. 1015, Renewed Amendment No. 10, and Revision 1 to Renewed Amendment Nos. 5 Through 9

Federal Register, Volume 90 Issue 233 (Monday, December 8, 2025) [Federal Register Volume 90, Number 233 (Monday, December 8, 2025)] [Proposed Rules] [Pages 56697-56699] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2025-22230] ======================================================================== Proposed Rules Federal Register ________________________________________________________________________ This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. ======================================================================== Federal Register / Vol. 90, No. 233 / Monday, December 8, 2025 / Proposed Rules [[Page 56697]] NUCLEAR REGULATORY COMMISSION 10 CFR Part 72 [NRC-2025-0025] RIN 3150-AL30 List of Approved Spent Fuel Storage Casks: NAC International, Inc., NAC-UMS[supreg] Universal Storage System, Certificate of Compliance No. 1015, Renewed Amendment No. 10, and Revision 1 to Renewed Amendment Nos. 5 Through 9

Agency

Nuclear Regulatory Commission.

Action

Proposed rule. -----------------------------------------------------------------------

Summary

The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its spent fuel regulations by revising the NAC International, Inc., NAC-UMS[supreg] Universal Storage System (NAC-UMS[supreg]) design listing within the ``List of approved spent fuel storage casks'' to include Renewed Amendment No. 10, and to revise Renewed Amendment Nos. 5 through 9 to Certificate of Compliance (CoC) No. 1015. The addition of Renewed Amendment No. 10 and Revision 1 to Renewed Amendment Nos. 5 through 9 of the certificate of compliance would correct licensing basis deficiencies and update the address in the CoC to reflect the new address of the applicant's headquarters offices.

Dates

Submit comments by January 7, 2026. Comments received after this date will be considered if it is practical to do so, but the NRC is able to ensure consideration only for comments received on or before this date.

Addresses

Submit your comments, identified by Docket ID NRC-2025-0025, at https://www.regulations.gov. If your material cannot be submitted using https://www.regulations.gov, call or email the individual listed in the FOR FURTHER INFORMATION CONTACT section of this document for alternate instructions. You can read a plain language description of this proposed rule at https://www.regulations.gov/docket/NRC-2025-0025. For additional direction on obtaining information and submitting comments, see ``Obtaining Information and Submitting Comments'' in the SUPPLEMENTARY INFORMATION section of this document.

For Further Information Contact

Gregory Trussell, Office of Nuclear Material Safety and Safeguards, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001; telephone: 301-415-6244, email: [email protected].

Supplementary Information

Table of Contents I. Obtaining Information and Submitting Comments II. Rulemaking Procedure III. Background IV. Plain Writing V. Regulatory Planning and Review (E.O. 12866) VI. Availability of Documents

II. Rulemaking Procedure

Because the NRC considers this action to be non-controversial, the NRC is publishing this proposed rule concurrently with a direct final rule in the Rules and Regulations section of this issue of the Federal Register. The direct final rule will become effective on February 23, 2026. However, if the NRC receives any significant adverse comment by January 7, 2026, then the NRC will publish a document that withdraws the direct final rule. If the direct final rule is withdrawn, the NRC will address the comments in a subsequent final rule. In general, absent significant modifications to the proposed revisions requiring republication, the NRC will not initiate a second comment period on this action in the event the direct final rule is withdrawn. [[Page 56698]] A significant adverse comment is a comment where the commenter explains why the rule would be inappropriate, including challenges to the rule's underlying premise or approach, or would be ineffective or unacceptable without a change. A comment is adverse and significant if: (1) The comment opposes the rule and provides a reason sufficient to require a substantive response in a notice-and-comment process. For example, a substantive response is required when: (a) The comment causes the NRC to reevaluate (or reconsider) its position or conduct additional analysis; (b) The comment raises an issue serious enough to warrant a substantive response to clarify or complete the record; or (c) The comment raises a relevant issue that was not previously addressed or considered by the NRC. (2) The comment proposes a change or an addition to the rule, and it is apparent that the rule would be ineffective or unacceptable without incorporation of the change or addition. (3) The comment causes the NRC to make a change (other than editorial) to the rule. For a more detailed discussion of the proposed rule changes and associated analyses, see the direct final rule published in the Rules and Regulations section of this issue of the Federal Register.

III. Background

Section 218(a) of the Nuclear Waste Policy Act of 1982, as amended, requires that ``[t]he Secretary [of the Department of Energy] shall establish a demonstration program, in cooperation with the private sector, for the dry storage of spent nuclear fuel at civilian nuclear power reactor sites, with the objective of establishing one or more technologies that the [Nuclear Regulatory] Commission may, by rule, approve for use at the sites of civilian nuclear power reactors without, to the maximum extent practicable, the need for additional site-specific approvals by the Commission.'' Section 133 of the Nuclear Waste Policy Act states, in part, that ``[t]he Commission shall, by rule, establish procedures for the licensing of any technology approved by the Commission under Section 219(a) [sic: 218(a)] for use at the site of any civilian nuclear power reactor.'' To implement this mandate, the Commission approved dry storage of spent nuclear fuel in NRC-approved casks under a general license by publishing a final rule that added a new subpart K in part 72 of title 10 of the Code of Federal Regulations (10 CFR) entitled ``General License for Storage of Spent Fuel at Power Reactor Sites'' (55 FR 29181; July 18, 1990). This rule also established a new subpart L in 10 CFR part 72 entitled ``Approval of Spent Fuel Storage Casks,'' which contains procedures and criteria for obtaining NRC approval of spent fuel storage cask designs. The NRC subsequently issued a final rule on October 19, 2000 (65 FR 62581), that approved the NAC-UMS[supreg] design and added it to the list of NRC-approved cask designs in Sec. 72.214 as Certificate of Compliance No. 1015.

IV. Plain Writing

The Plain Writing Act of 2010 (Pub. L. 111-274) requires Federal agencies to write documents in a clear, concise, and well-organized manner. The NRC has written this document to be consistent with the Plain Writing Act as well as the Presidential Memorandum, ``Plain Language in Government Writing,'' published June 10, 1998 (63 FR 31885). The NRC requests comment on the proposed rule with respect to clarity and effectiveness of the language used.

V. Regulatory Planning and Review (E.O. 12866)

Executive Order (E.O.) 12866, as amended by E.O. 14215, provides that the Office of Information and Regulatory Affairs (OIRA) will determine whether a regulatory action is significant as defined by E.O. 12866 and will review significant regulatory actions. OIRA determined that this proposed rule is not a significant regulatory action under E.O. 12866.

VI. Availability of Documents

The documents identified in the following table are available to interested persons as indicated. ------------------------------------------------------------------------ ADAMS accession No./ weblink/ Document Federal Register citation ------------------------------------------------------------------------ Renewed Certificate of Compliance No. ML25003A177 1015, Amendments 5 to 9, Revision 1, and Amendment 10 for the Model No. NAC- UMS[supreg] Storage System. User Need Memo for Amendment Nos. 5 ML25003A178 through 9, Revision 1, and Amendment No. 10 of the Renewed Certificate of Compliance No. 1015 for the NAC- UMS[supreg] Universal Storage System. Proposed Renewed CoC No. 1015, ML25003A180 Amendment No. 5, Revision 1. Proposed Renewed CoC No. 1015, ML25003A181 Amendment No. 5, Revision 1, Appendix A. Proposed Renewed CoC No. 1015, ML25003A182 Amendment No. 5, Revision 1, Appendix B. Proposed Renewed CoC No. 1015, ML25003A183 Amendment No. 6, Revision 1. Proposed Renewed CoC No. 1015, ML25003A184 Amendment No. 6, Revision 1, Appendix A. Proposed Renewed CoC No. 1015, ML25003A185 Amendment No. 6, Revision 1, Appendix B. Proposed Renewed CoC No. 1015, ML25003A186 Amendment No. 7, Revision 1. Proposed Renewed CoC No. 1015, ML25003A187 Amendment No. 7, Revision 1, Appendix A. Proposed Renewed CoC No. 1015, ML25003A188 Amendment No. 7, Revision 1, Appendix B. Proposed Renewed CoC No. 1015, ML25003A189 Amendment No. 8, Revision 1. Proposed Renewed CoC No. 1015, ML25003A190 Amendment No. 8, Revision 1, Appendix A. Proposed Renewed CoC No. 1015, ML25003A191 Amendment No. 8, Revision 1, Appendix B. Proposed Renewed CoC No. 1015, ML25003A192 Amendment No. 9, Revision 1. Proposed Renewed CoC No. 1015, ML25003A193 Amendment No. 9, Revision 1, Appendix A. Proposed Renewed CoC No. 1015, ML25003A194 Amendment No. 9, Revision 1, Appendix B. Proposed Renewed CoC No. 1015, ML25003A195 Amendment No. 10. Proposed Renewed CoC No. 1015, ML25003A196 Amendment No. 10, Appendix A. Proposed Renewed CoC No. 1015, ML25003A197 Amendment No. 10, Appendix B. Submission of an Amendment Request for ML23283A249 NAC-UMS Amendment No. 10 and Revisions ML23291A095 to Amendments 5 to 9, dated October 10, 2023. Email dated 12-19-2024 related to ML25021A284 Applicability of Amendments. Supplement to Amendment Request, dated ML24044A221 February 13, 2024. [[Page 56699]] Supplement to Amendment Request, dated ML24179A058 June 26, 2024. Request for Exemption from Certain ML24094A060 Requirements. Email dated 1-30-2025 Regarding planned ML25031A348 Adoption of Renewed Amendment No.9, Revision 1. Email dated 1-14-2025 Adopting ML25014A450 Amendment No. 9, Revision 1. Supplement to Amendment Request, dated ML25198A286 July 17, 2025. Supplement to Amendment Request, dated ML25240A911 August 27, 2025. Preliminary Safety Evaluation Report, ML25029A237 Model No. NAC-UMS[supreg] Universal Storage System, Renewed CoC No. 1015, Amendment Nos. 5 through 9, Revision 1, and Amendment No. 10. ------------------------------------------------------------------------ The NRC may post materials related to this document, including public comments, on the Federal rulemaking website at https://www.regulations.gov under Docket ID NRC-2025-0025. In addition, the Federal rulemaking website allows members of the public to receive alerts when changes or additions occur in a docket folder. To subscribe: (1) navigate to the docket folder (NRC-2025-0025); (2) click the ``Subscribe'' link; and (3) enter an email address and click on the ``Subscribe'' link. Dated: November 19, 2025. For the Nuclear Regulatory Commission. Michael King, Acting Executive Director for Operations. [FR Doc. 2025-22230 Filed 12-5-25; 8:45 am] BILLING CODE 7590-01-P