Data / Federal rules / 2025-04651
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 final rule in the Federal Register on March 20, 2025. It took effect on June 3, 2025. Comments closed on April 21, 2025.
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What the agency says
The U.S. Nuclear Regulatory Commission (NRC) is amending 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
- 2025-04651
- Type
- Final rule
- Action
- Direct final rule
- Agency
- Nuclear Regulatory Commission
- Published
- March 20, 2025
- Takes effect
- June 3, 2025
- Comments due
- April 21, 2025
- Dates
- This direct final rule is effective June 3, 2025, unless significant adverse comments are received by April 21, 2025. If this direct final rule is withdrawn as a result of such comments, timely notice of the withdrawal will be published in the Federal Register. 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. Comments received on this direct final rule also will be considered to be comments on a companion proposed rule published in the Proposed Rules section of this i
- Docket
- NRC-2024-0216
- Regulation ID (RIN)
- 3150-AL25
- Code of Federal Regulations
- 10 CFR 72
- Topics
- Administrative practice and procedure; Hazardous waste; Indians; Intergovernmental relations; Nuclear energy; Penalties; Radiation protection; Reporting and recordkeeping requirements; Security measures; Whistleblowing
- Pages
- 6
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