Data / Federal rules / 2026-14876
List of Approved Spent Fuel Storage Casks: Holtec International HI-STORM Flood/Wind System, Certificate of Compliance No. 1032, Amendment No. 10
The Nuclear Regulatory Commission published this final rule in the Federal Register on July 23, 2026. It took effect on October 6, 2026. Comments closed on August 24, 2026.
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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 Holtec International HI- STORM Flood/Wind (FW) System listing within the "List of approved spent fuel storage casks" to include Amendment No. 10 to Certificate of Compliance (CoC) No. 1032. Amendment No. 10 revises the CoC for the HI-STORM FW dry storage system to incorporate several enhancements. These changes include the introduction of the HI-STORM FW Extended Configuration, adoption of a methodology for developing site-specific loading patterns with higher allowable per-canister and per-cell heat- load limits, incorporation of a radiological fuel-qualification methodology, reduction of minimum cooling-time requirements for certain multi-purpose canister models based on updated evaluations, and refinement of the missile-impact analysis methodology to allow site- specific credit for the HI-TRAC VW water-jacket shell. The amendment also includes a minor editorial clarification.
Key facts
- Document number
- 2026-14876
- Type
- Final rule
- Action
- Direct final rule
- Agency
- Nuclear Regulatory Commission
- Published
- July 23, 2026
- Takes effect
- October 6, 2026
- Comments due
- August 24, 2026
- Dates
- This direct final rule is effective October 6, 2026, unless significant adverse comments are received by August 24, 2026. If this direct final rule is withdrawn as a result of such comments, timely notice of the withdrawal will be published in the Federal Register.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 will also be considered to be comments on a companion proposed rule published in the Proposed Rules section of th
- Docket
- NRC-2026-2476
- Regulation ID (RIN)
- 3150-AL71
- 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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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.