The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations by revising the Holtec International HI- STORM Flood/Wind Multi-purpose Canister Storage System listing within the "List of approved spent fuel storage casks" to include Amendment No. 7 to Certificate of Compliance No. 1032. Amendment No. 7 revises the certificate of compliance to add a new overpack, add new multi- purpose canisters MPC-44 and MPC-37P, and add new fuel type 10x10J to approved content. Amendment No. 7 also incorporates other technical changes and several editorial changes.