  The Electron-Ion Collider (EIC) provides unique opportunities in searching
for new physics through its high center of mass energy and coherent
interactions of large nuclei. We examine how light weakly interacting vector
bosons from a variety of models can be discovered or constrained, over
significant parts of their parameter space, through clean displaced vertex
signals at the EIC. Our results indicate that the searches we propose favorably
compare with or surpass existing experimental projections for the models
examined. The reach for the new physics that we consider can be markedly
improved if "far backward" particle identification capabilities are included in
the EIC detector complex.
