@article{ref1,
title="Cleaner Road Ahead",
journal="American city and county",
year="2006",
author="Kilcarr, Sean",
volume="121",
number="2",
pages="32-34",
abstract="The Environmental Protection Agency's 2007 truck emission regulations are summarized. Changes include: high purchase prices for trucks and school buses, more expensive low-emission engines and after treatment systems, more expensive diesel fuel using ultra-low sulfur diesel (ULSD), a new required engine oil and more frequent oil changes, greater demand for engine coolant, and additional maintenance costs. Training for managers and technicians on the new changes will be needed.<p />",
language="",
issn="0149-337X",
doi="",
url="http://dx.doi.org/"
}