The Nuclear Regulatory Commission (NRC) is amending its regulations to revise the Pacific Sierra Nuclear Associates (PSNA) VSC- 24 cask system listing within the "List of approved spent fuel storage casks" to include Amendment No. 1 to the Certificate of Compliance. Amendment No. 1 will modify the present cask system design to permit a licensee to store burnable poison rod assemblies in the VSC-24 cask system with the spent fuel under a general license.