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ECOLOGY USA - California seeks to mandate upgrades of older engines
USA - eTrucker/Trucking Headlines, By Jill Dunn - 09 Dec 2004 -- The California Air Resources Board officials voted to require owners of nearly 60,000 diesel heavy-duty trucks, school buses and motor homes built 1993-98 to have the engines’ computer software upgraded to reduce emissions, but a proposed amendment would make manufacturers pay.... In March, board members had given manufacturers seven months to install new “reflash” software to prevent release of additional nitrogen oxide. Manufacturers were told to voluntarily reflash 35 percent of all state-registered vehicles, but only 13 percent actually were upgraded.
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