CleanAIR Systems worked with consultant Emisstar to provide the equipment to modify the bus as part of the beginning of the Clean School Bus USA. The EPA is working with the Puerto Rico Clean School Bus USA Workgroup to get older buses updated with the new emissions equipment. The first bus was equipped with a CleanAIR ASSURE diesel oxidation converter that reduces particulates by twenty percent, hydrocarbons by fifty percent and carbon monoxide by sixty percent. The system is also compatible with both regular diesel and biodiesel.
[Source: CleanAIR Systems]