Economical, ecological, and safe driving – eco-driving – is aimed at reducing fuel consumption and greenhouse gas emissions (Martin, Chan, & Shaheen, 2012). The adoption of energy-efficient driving styles and practices has been recognized as a means of reducing energy consumption, and estimates of energy savings attributed to eco-driving have been reported to range from 5% to as high as 20%, depending on the driving context (Barkenbus, 2010; Stillwater & Kurani, 2013; van der Voort, Dougherty & van Maareseveen, 2001). Eco-driving is being promoted in partnership among the Oregon Department of Transportation (ODOT) (Planning, Safety and Motor Carrier Division), the Department of Environmental Quality, the Oregon Department of Energy, and the Clean Cities Program (“EcoDriving Agency Partners”) to address fuel consumption in fleet drivers of light vehicles. The EcoDrive program was created to increase fuel efficiency in organizational fleets. The intent of the EcoDrive Program is to design and introduce eco-driving educational materials specifically targeted at drivers of light vehicles. The materials highlight the “Top EcoDrive Tips” and reinforce the relevant actions and benefits of eco-driving. The purpose of this report is to provide information about the implementation of the EcoDrive Program at three sites (publicsector organizations) within the state of Oregon and provide a preliminary evaluation of the program. In particular, this report will highlight how the EcoDrive Program impacted fleet drivers in terms of attitudes, knowledge, and behavior and how the drivers responded to the eco-driving materials. Further, we discuss recommendations for future implementations of the materials, highlighting possible organizational environments that are important for the success of the EcoDrive Program.