This Project Planning Document for the Department of Energy (DOE) Alternative Fuels Utilization Program (AFUP) has been developed to provide specific criteria and guidelines for the evaluation and development of nonpetroleum-based highway vehicle fuels derived from domestic resources. The operative portion of this document has been organized in terms of the five basic classes of alternative fuels which are currently identifiable. Within each class, general areas of R&D which must be addressed are illustrated in terms of a matrix format, while specific project relationships are identified by a corresponding flow chart. It should be emphasized that projects described in this document may well be grouped together and executed within one specific contract. Conversely, broad implications of other projects may well cut across and be integrated into a variety of contracts. Also included in this Project Plan is an overview of the evaluation of and relationships between these several alternative fuels classes intended to progress toward a uniform and independent domestic highway transportation system. In addition, the mechanism for implementation of the AFUP is outlined.