Data / Federal rules / 2025-14293
List of Approved Spent Fuel Storage Casks: TN Americas LLC, NUHOMS® EOS Dry Spent Fuel Storage System, Certificate of Compliance No. 1042, Amendment No. 4
The Nuclear Regulatory Commission published this proposed rule in the Federal Register on July 29, 2025. Comments closed on August 28, 2025.
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What the agency says
The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its spent fuel storage regulations by revising the TN Americas LLC, NUHOMS[supreg] EOS Dry Spent Fuel Storage System listing within the "List of approved spent fuel storage casks" to include Amendment No. 4 to Certificate of Compliance No. 1042. Amendment No. 4 would change the certificate of compliance to incorporate a method to determine new loading patterns, introduce a steel plate composite option, introduce the use of MAVRIC software for a confirmatory run of the HSM-MX dose rates, make technical specification changes for consistency and terminology clarification, make various updated final safety analysis report editorial corrections for consistency and clarification, add measured exposures from past loading campaigns, allow use of a blended Portland cement, change the use of the MX- Loading Crane, and clarify the scenarios under which the maximum heat loads can be reduced.
Key facts
- Document number
- 2025-14293
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Nuclear Regulatory Commission
- Published
- July 29, 2025
- Comments due
- August 28, 2025
- Dates
- Submit comments by August 28, 2025. Comments received after this date will be considered if it is practical to do so, but the NRC is able to ensure consideration of only comments received on or before this date.
- Docket
- NRC-2025-0070
- Regulation ID (RIN)
- 3150-AL33
- Code of Federal Regulations
- 10 CFR 72
- Pages
- 3
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Everything from the Nuclear Regulatory Commission · Published in July 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.