This report describes the results of a life cycle cost analysis conducted using a spread sheet-based Lifecycle Cost Model developed to allow the user to evaluate the differential costs of different transit bus propulsion technologies. The model is set up to allow analysis of bus/technology types that operate on various liquid and gaseous fuels. The model includes six input worksheets into which the user is required to enter various fleet data assumptions, and four output worksheets which display the costs calculated by the model for the bus/technology types analyzed.