⚛️NRC Updates Approval for NAC International's Spent Fuel Cask
The U.S. Nuclear Regulatory Commission (NRC) is correcting a proposed rule that was published in the Federal Register on March 20, 2025, 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. This action is necessary to replace an incorrect phrase in the Summary caption of the document.
Learn More⚡NRC Updates on MAGNASTOR® Storage System Regulations
The U.S. Nuclear Regulatory Commission (NRC) is correcting a direct final rule that was published in the Federal Register on March 20, 2025, 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. This action is necessary to replace an incorrect phrase in the SUMMARY caption of the document.
Learn More⚛️Amendment 15 to Approved Spent Fuel Storage Casks Regulations
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.
Learn More⚛️Proposed NRC Amendments for Spent Fuel Storage Regulations
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.
Learn More⚛️NRC Grants Exemption for Constellation Energy at Nine Mile Point
The U.S. Nuclear Regulatory Commission (NRC) issued an exemption to Constellation Energy Generation, LLC, permitting Nine Mile Point Nuclear Station (NMP) Units 1 and 2 to use the Holtec HI-STORM Flood/Wind (FW) Multi-Purpose Canister (MPC) Storage System, including the use of the HI-TRAC VW transfer cask during loading and transport operations, at the NMP independent spent fuel storage installation, for six MPC-89, in a near-term loading campaign beginning in May 2025, where the terms, conditions, and specifications in Certificate of Compliance No. 1032, Amendment No. 3, Revision 0, are not met.
Learn More⚛️NRC Updates Spent Fuel Storage Regulations for HI-STORM 100 Cask System
The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations by revising the Holtec International HI- STORM 100 Cask System listing within the "List of approved spent fuel storage casks" to include Renewed Amendment No. 19 to Certificate of Compliance No. 1014. Renewed Amendment No. 19 revises the certificate of compliance to update the acceptance criteria and method of evaluation (MOE) for the HI-STORM 100 system tipover accident for equipment combinations involving multi-purpose canisters (MPCs) with Metamic-HT baskets. This involves applying a new stress-based criteria and completing new evaluations consistent with the new tipover acceptance criteria and MOE and involves some adjustments of the existing deflection criteria.
Learn More⚛️Proposed Rule for HI-STORM 100 Cask System Compliance Update
The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its spent fuel storage regulations by revising the Holtec International HI-STORM 100 Cask System listing within the "List of approved spent fuel storage casks" to include Renewed Amendment No. 19 to Certificate of Compliance No. 1014. Renewed Amendment No. 19 revises the certificate of compliance to update the acceptance criteria and method of evaluation (MOE) for the HI-STORM 100 system tipover accident for equipment combinations involving multi-purpose canisters (MPCs) with Metamic-HT baskets. This involves applying a new stress-based criteria and completing new evaluations consistent with the new tipover acceptance criteria and MOE and involves some adjustments of the existing deflection criteria.
Learn More⚛️Constellation Energy's Regulatory Exemption on Spent Fuel Storage
The U.S. Nuclear Regulatory Commission (NRC) is issuing an environmental assessment (EA) and a finding of no significant impact (FONSI) for an exemption request submitted by Constellation Energy Generation, LLC (Constellation) that would permit Nine Mile Point Nuclear Station (NMP) to maintain nine loaded and to load six new 89 multi-purpose canisters (MPC) with continuous basket shims (CBS) in the HI-STORM Flood/Wind (FW) MPC Storage System at its NMP Units 1 and 2 Independent Spent Fuel Storage Installation (ISFSI) in a storage condition where the terms, conditions, and specifications in the Certificate of Compliance (CoC) No. 1032, Amendment No. 3, Revision No. 0 are not met.
Learn More⚛️NRC Approves Exemption for Constellation Energy on Spent Fuel Storage
The U.S. Nuclear Regulatory Commission (NRC) is issuing an environmental assessment (EA) and a finding of no significant impact (FONSI) for an exemption request submitted by Constellation Energy Generation, LLC (CEG) that would permit Peach Bottom Atomic Power Station (PB) Units 2 and 3 to load seven 89 multi-purpose canisters (MPC) at the PB independent spent fuel storage installation (ISFSI) in a near-term loading campaign beginning in June 2025, including the use of the HI-TRAC VW transfer cask (HI-TRAC) during loading and transport operations, where the terms, conditions, and specifications in Certificate of Compliance (CoC) No. 1032, Amendment No. 1, Revision No. 1, are not met.
Learn More⚛️Proposed Rule on Revised NAC Multi-Purpose Canister Compliance
The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its spent fuel regulations by revising the NAC Multi-Purpose Canister (NAC-MPC) System listing within the "List of approved spent fuel storage casks" to include Amendment No. 9 and revise Amendment Nos. 6, 7, and 8 to Certificate of Compliance (CoC) No. 1025. Amendment No. 9 and the revisions to Amendment Nos. 6, 7, and 8 amend the description of the vertical concrete cask (VCC) in the CoC and technical specifications to make a distinction between the VCC body and the VCC lid, in terms of applicability of the American Concrete Institute (ACI) Specifications ACI 349 and ACI 318.
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