Col. Jan A. Van Prooyen has been named new commander of Dugway Proving Ground, replacing Col. James D. Tipton. A ceremony to formally install him has been scheduled for June 9.

Van Prooyen is currently the project manager for nuclear, biological and chemical defense systems at Aberdeen Proving Ground, Md. He was the commander of the Umatilla Depot Activity in Oregon from 1983 to 1985 and was the project manager for chemical demilitarization.

A West Point graduate, he has a master's degree in nuclear engineering from the University of Arizona and a doctorate in nuclear engineering from the University of Virginia. He also completed a one-year fellowship in national security studies at Harvard University's Kennedy School of Government.

Kathleen Whitaker, Dugway public affairs officer, said the switch of command is routine. She said commanders at Dugway are now generally appointed for a two-year tour of duty.