Data / Federal rules / 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
The Nuclear Regulatory Commission published this proposed rule in the Federal Register on December 8, 2025. Comments closed on January 7, 2026.
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What the agency says
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.
Key facts
- Document number
- 2025-22230
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Nuclear Regulatory Commission
- Published
- December 8, 2025
- Comments due
- January 7, 2026
- 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.
- Docket
- NRC-2025-0025
- Regulation ID (RIN)
- 3150-AL30
- Code of Federal Regulations
- 10 CFR 72
- Pages
- 3
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Everything from the Nuclear Regulatory Commission · Published in December 2025
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.