Energy & environment · 14/06/20221 min read

NRC Proposes Amendment to Spent Fuel Regulations for NAC International NAC-UMS Universal Storage System

The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its spent fuel regulations by revising the NAC International NAC-UMS Universal Storage System listing within the 'List of approved spent fuel storage casks' to include Amendment No. 9 to Certificate of Compliance No. 1015. This amendment corrects the effective thermal properties for pressurized-water reactor fuel assemblies used in the certification basis ANSYS thermal models and updates modeling assumptions.