Data / Federal rules / 2025-04650
List of Approved Spent Fuel Storage Casks: NAC International, Inc., MAGNASTOR® Storage System, Certificate of Compliance No. 1031, Amendment No. 15
The Nuclear Regulatory Commission published this proposed rule in the Federal Register on March 20, 2025. Comments closed on April 21, 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 NAC International, Inc. MAGNASTOR[supreg] Storage System listing within the "List of approved spent fuel storage casks" to include Amendment No. 15 to Certificate of Compliance No. 1031. Amendment No. 15 revises the certificate of compliance to add a new variation of the Lightweight MAGNASTOR[supreg] Transfer Cask design, add a new concrete cask design, increase the maximum system head load capacity, add new loading patterns, add a thermal shunt for short loading patterns, remove the 5 percent burnup penalty, increase Passive MAGNASTOR[supreg] Transfer Cask heat load, add two new pressurized-water reactor fuel types to support future operations, modify the transportable storage canister lid to allow additional clearance near the top center of the basket, and correct and clarify principal design criteria, operating procedures, and the acceptance criteria and maintenance program. This amendment also makes corresponding revisions to previously approved drawings for the concrete cask, Technical Specifications Appendix A and Appendix B, specific chapters of the final safety analysis report, and several license drawings.
Key facts
- Document number
- 2025-04650
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Nuclear Regulatory Commission
- Published
- March 20, 2025
- Comments due
- April 21, 2025
- Dates
- Submit comments by April 21, 2025. 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-2024-0216
- Regulation ID (RIN)
- 3150-AL25
- Code of Federal Regulations
- 10 CFR 72
- Pages
- 3
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Everything from the Nuclear Regulatory Commission · Published in March 2025
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