WRAP, the Waste Resources Allocation Program, is a model to guide decision makers in the process of planning management systems for processing, recovery, and disposal of solid wastes. The model uses a linear fixed-charge algorithm in the examination of economic considerations. This book documents the operational and exercise runs performed with the model in the course of its development. The sites selected for examination in the runs were the St. Louis metropolitan area and Northeastern Massachusetts. Documentation of the model itself is available from the EPA, Office of Solid Waste. (Portions of this document are not fully legible)