List of Approved Spent Fuel Storage Casks: Holtec International HI-STORM 100 Multipurpose Canister Cask System, Certificate of Compliance No. 1014, Amendment Nos. 11 and 12

The U.S. Nuclear Regulatory Commission (NRC) is confirming the effective date of February 25, 2019, for the direct final rule that was published in the Federal Register on December 12, 2018. This direct final rule amended the NRC's spent fuel storage regulations by revising the Holtec International HI-STORM 100 Multipurpose Canister Cask System (HI-STORM 100 System) listing within the "List of approved spent fuel storage casks" to include Amendment Nos. 11 and 12 to Certificate of Compliance No. 1014. Amendment Nos. 11 and 12 revise multiple items in the technical specifications for multi-purpose canister models listed under Certificate of Compliance No. 1014; most of these revisions involve changes to the authorized contents. In addition, Amendment No. 11 makes several other editorial changes.