A minitrack on Biological Control Systems is planned for the PSB to be held January 1996 in Hawaii. Papers are invited that deal with any biological phenomena are "controlled" in the mathematical sense. In particular, tumor growth and its control, including the primary signal processing pathways with growth/angiogenic factors, immunology control mechanisms, including control systems theory and signalling with cytokines, optimal treatment scheduling, especially in cancer chemotherapy, enzyme kinetics systems, and their control are potential targets for this mini-track. We welcome papers on all aspects of control systems in biology. People wishing to present posters may submit either full papers or abstracts. Preregistration for the conference is required for the inclusion of a paper in the conference proceedings.