On August 10, 2018, President Donald J. Trump announced his intent to nominate William Bookless, a former Senior Physicist at the U.S. Department of Energy (DOE) Lawrence Livermore National Laboratory (LLNL), to be the Principal Deputy Administrator at the National Nuclear Security Administration (NNSA).

Bookless participated in various nuclear security research projects during his 32-year tenure at LLNL.  He worked as the Deputy Associate Director for the laboratory’s Nuclear Weapons Program, as well as the Associate Director for Safety and Environmental Protection.  His LLNL career culminated with a two and a half year assignment as Senior Adviser to the NNSA Administrator from 2009 to 2012.  Before retiring in 2015, Bookless served for three years as the Assistant Laboratory Director for Policy and Planning at the Brookhaven National Laboratory.

Bookless received his Ph.D. in physics from the University of Wyoming in 1980.  He received NNSA recognition for his advisory work on the 2010 Nuclear Posture Review and the New START Treaty.

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