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. 18 to Certificate of Compliance No. 1014. Renewed Amendment No. 18 amends the certificate of compliance to incorporate the Holtec Report No. HI-2200343-A entitled, "Topical Report for Allowance of Heat Load Patterns in HI-STORM 100 and HI-STORM FW Systems."