The Nuclear Regulatory Commission (NRC) is amending its regulations revising the Pacific Sierra Nuclear Associates (PSNA) VSC- 24 cask system listing within the 10 CFR part 72 "List of approved spent fuel storage casks," to include Amendment No. 2 to the Certificate of Compliance (CoC). Amendment No. 2 will revise the Technical Specifications and CoC regarding welding and nondestructive examination of welds, the method for determining cask drain time during loading, the minimum temperature for moving the loaded multi-assembly sealed basket (MSB), artificial thermal loads other than spent fuel that may be used to obtain temperature data, and the maximum permissible air outlet temperature. In addition, the amendment includes changes to the Technical Specifications and CoC to correct typographical errors and to make other minor clarifications and changes. This amendment will allow the holders of power reactor operating licenses to store spent fuel in the VSC-24 cask system, as amended, under a general license.