The proceedings and recommendations of a workshop entitled "Workshop on Developing a Predictive Capability for CO Formation in Fires" are summarized. This meeting took place on December 3-4, 1988 in Clearwater, Florida. Several brief technical presentations are critiqued. Short summaries for each talk are included in an appendix. Findings of two working groups constituted to address the fundamental and engineering aspects of the workshop topic are discussed. The most important areas of research required to fulfill the workshop topic are provided as final recommendations. Six specific areas are listed. Many workshop details are included in appendices.