The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations by revising the TN Americas LLC, TN-68 Dry Storage Cask listing within the "List of approved spent fuel storage casks" to renew, for an additional 40 years, the initial certificate and Amendment No. 1 of Certificate of Compliance No. 1027. The renewal of the initial certificate and Amendment No. 1 revises the certificate of compliance's conditions and technical specifications to address aging management activities related to the structures, systems, and components (SSCs) of the dry storage system to ensure that the SSCs will maintain their intended functions during the period of extended storage operations.