Clean School Bus Pilot Project

Two school districts were selected to participate in a pilot project on the use of biodiesel with ultra low sulfur diesel (ULSD) in school buses, with blends of 80% ultra low sulfur diesel and 20% biodiesel (B20). The pilot project began in September of 2003, with emissions testing at specified intervals throughout the project. The Superintendent of Public Instruction is expected to submit a report of findings, including issues related to the maintenance of the vehicles, to the legislature by September 1, 2005. (Reference RCW 28A.160.804)