[en] A testing program using eight commercial pressurized water reactor and boiling water reactor spent fuel rods was conducted to investigate their long-term stability under a variety of possible dry storage conditions. The objective of this project was to provide the Nuclear Regulatory Commission with information to confirm or establish dry spent fuel storage licensing positions for long-term, low-temperature (<250⁰C) spent fuel rod behavior during dry storage and radioactive contamination arising from spallation of cladding crud. The results of a nondestructive examination of eight fuel rods, which included color closed-circuit television visual examinations, color photography, dimensional measurements, and neutron radiography, are presented. 7 figures, 4 tables