The Nuclear Regulatory Commission (NRC) is amending its regulations revising the NAC-UMS Universal Storage System listing within the "List of Approved Spent Fuel Storage Casks" to include Amendment No. 2 to Certificate of Compliance Number 1015. Amendment No. 2 will add miscellaneous spent fuel related components to the approved contents list for the NAC-UMS Universal Storage System and change the required actions in response to a failure of the cask heat removal system. Several other minor administrative changes will be made, which are discussed in Section 12 of the Safety Evaluation Report. Specific changes will be made to Technical Specifications (TS) to permit the storage of these components and the other requested changes. Changes will also be made to Conditions 1b and 6 of the Certificate of Compliance.