​Dr. Paul Witherell is a Mechanical Engineer in the Systems Integration Division of the Engineering Laboratory at the National Institute of Standards and Technology (NIST).  Paul received his Ph.D. from the Department of Mechanical and Industrial Engineering at the University of Massachusetts Amherst in 2009.  Paul joined NIST in 2010 as a National Research Council (NRC) Postdoctoral Fellow. At NIST, Paul manages a project on Systems Integration for Additive Manufacturing and serves as the Associate Program Manager of the Measurement Science for Additive Manufacturing program in the Engineering Laboratory.  Paul received the ASME Computers and Information in Engineering (CIE) Division Young Engineer award in 2014.  Paul is active in ASTM F42/ ISO TC261 standards efforts and is Vice Chair on ASME’s Y14.46 subcommittee on Product Definition for Additive Manufacturing.