List of Approved Spent Fuel Storage Casks: Holtec International HI-STORM Flood/Wind System, Certificate of Compliance No. 1032, Amendment No. 10

What it does

The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend 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.

The Nuclear Regulatory Commission's summary, as published in the Federal Register.

What it would change

1 part of Title 10 of the Code of Federal Regulations:

10 CFR 72

Before this

1 earlier Federal Register document under regulation identifier 3150-AL71 since Jan. 1, 2025.

• July 23, 2026 Direct final rule. List of Approved Spent Fuel Storage Casks: Holtec International HI-STORM Flood/Wind System, Certificate of Compliance No. 1032, Amendment No. 10

Since then:

• Sept. 3, 2026 Direct final rule; confirmation of effective date. List of Approved Spent Fuel Storage Casks: Holtec International HI-STORM Flood/Wind System, Certificate of Compliance No. 1032, Amendment No. 10

What happens next and when

Submit comments by August 24, 2026. 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.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket NRC-2026-2476 on Regulations.gov
• Title 10 on eCFR

The record as published

Source: the Federal Register (public domain). The document in the Federal Register