Schools Turn to Propane Buses as Stricter Emissions Standards Loom. For many Americans, propane is that stuff from the home improvement store that fuels backyard barbecues and patio dinners. But in a growing number of cities across the country, it is what gets children to school. Of the top 25 school bus markets, 19 have propane-fueled vehicles in their fleets, including New York, Chicago, Houston, Los Angeles, Miami, Philadelphia and Phoenix.
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