Article: Driven to change.(Environment)(Agencies plan to switch fleets to cleaner diesel fuel)

Byline: Scott Maben The Register-Guard

School and transit buses, delivery vans and trucks could be filling up on cleaner-burning diesel in Oregon as early as next year, ahead of more stringent federal fuel standards set to begin in fall 2006.

Called ultra-low-sulfur diesel, the new fuel reduces emissions by up to 15 percent. But when it's paired with engine filters and particulate traps, the combination can cut harmful exhaust by up to 95 percent.

The potential health benefits are huge, said Kevin Downing, air quality planner with the state Department of Environmental Quality.

"Our preliminary determination is that diesel exhaust is the ...

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