Nuclear Regulatory Commission
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.
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Nuclear Regulatory Commission 10 CFR Part 72 [NRC-2026-2476] RIN 3150-AL71 AGENCY: Nuclear Regulatory Commission. ACTION: Direct final rule. SUMMARY: 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. 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 pract…
Other Federal Register documents from the same docket.
Citation: 91 FR 46243
