Sandia National Laboratories and Pacific Northwest National Laboratory are conducting tests of a Spanish-designed spent nuclear fuel transport cask to collect data on stresses to the spent fuel during normal transport conditions. Tests will include transport by heavy-haul truck, ship, and rail in both the U.S. and Europe between June and August 2017. Instrumented mock fuel assemblies will collect strain and acceleration data during all transport stages and mode transfers. The data will help validate that spent fuel integrity is maintained during normal transport vibrations and impacts.