CarLink II was a commuter-based carsharing pilot project administered by the Institute of Transportation Studies at the University of California, Davis (ITS-Davis) in conjunction with Caltrans, American Honda Motor Company, and Caltrain. California Partners for Advanced Transit and Highways (PATH) researchers conducted the evaluation. Pilot objectives included testing an advanced carsharing system, understanding user response to this service, and testing its long-term sustainability. From July 1, 2001 to June 30, 2002, the CarLink II program was deployed in the field and continued the investigation of commuter-based carsharing orginally explored in the 1998 CarLink I longitudinal survey and the 1999 CarLink I field test. Lessons learned during the CarLink I field test helped guide the project team’s design of the CarLink II project. This report documents lessons learned from the CarLink program.