Tucson Citizen. Several Pima County, Az, school districts are switching early next year to a B20 blend for their school buses.

“It should not cost the districts any more in the long run, but the air-quality benefit and the benefit of the displacement of foreign fossil fuels will be immense,” said Colleen Crowninshield, clean cities coordinator for the Pima Association of Governments.

[Marc] Lappitt [director of transportation for Amphitheater Public Schools] said he would like to see all school districts in Pima County form a consortium that would buy fuel in a huge block. That would allow better leverage in getting lower prices.

Rich Hittle, manager of Arizona Petroleum, said such a consortium would be a first in the nation.

Pima County school districts burn more than 2 million gallons of diesel fuel each year to drive about 10 million miles.