Harold J. "Bud" Mertz is an American researcher who is helped in the creation of the Hybrid IIIcrash test dummy, the standard dummy used in car safety tests. Working with General Motors in the late 1960s, Mertz designed and built the dummy which is today the only recognized test device in both North America and Europe for restraint devices which protect against frontal collisions.[citation needed]
Mertz went on to do his graduate studies at Wayne State, and worked with cadavers in crash testing studies too violent to use live volunteers. He completed his Ph.D. with a dissertation on whiplash-type injuries in 1967, In 1969, he was hired as a senior researcher at GM.[citation needed]