[en] The Safeguards Systems Group at the Los Alamos National Laboratory is collaborating with several other national laboratories in designing an integrated, state-of-the-art nondestructive assay (NDA) system for a new facility being constructed at the Savannah River Plant. We have focused our efforts on the development of an Instrument Control Computer (ICC) that will perform interfacing and communication tasks among small computers controlling NDA instruments in the Sample Assay Room and Feed Assay Room, the host computer for the process control system, and an existing nuclear materials accounting computer. Solution sample scheduling, feed-material sample verification, and other ICC functions will be described in detail. 4 references, 5 figures