The purpose of this document is to support the technical basis for the choice of test methods to assess fuel-rod cladding behavior following a loss-of-coolant accident (LOCA). For non-deformed cladding regions with uniform levels of hydrogen content and oxidation, and for irradiated cladding, the ring compression test (RCT) has been selected. The four-point bend test (4-PBT) has been selected for evaluating the performance of ballooned and ruptured...