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Navistar Inc. said it has completed 18 months of laboratory and field tests of its “advanced” version of exhaust gas recirculation engine technology that will be used to meet 2010 federal emission requirements.

The idea of removing 10% of truck traffic from the nation’s highways by 2020 to reduce carbon emissions is “almost ludicrous,” Ray Kuntz, former chairman of American Trucking Associations, told a Senate committee last week.

YRC Worldwide’s latest cost-cutting agreement with the Teamsters is expected to save $870 million over 18 months and help the company regain its financial footing, analysts and company officials said.

Drayage truckers blasted world’s largest ocean carrier Maersk Line’s plan to begin charging a chassis-use fee, saying it would raise costs and complicate operations.

J.B. Hunt Transport Services Inc. said its second-quarter profit fell 52%, hurt by mounting pressure on prices and weak demand, as the latest round of quarterly financial reports by public carriers began to roll in last week.

WASHINGTON — The Senate Environment and Public Works Committee approved an 18-month extension of existing highway legislation even as House leaders continued to oppose a delay in passing a new multiyear transportation funding bill.

The average cost of retail diesel in the United States dropped 5.2 cents a gallon last week to $2.542, the third consecutive decline and a level nearly 50% below the record highs of a year ago.

Any trucking company that takes the leadership position in safety and in clean air is to be commended. But doing so through high-tech safety and Environmental Protection Agency ventures makes the outcome risky.

A two-mile stretch of Interstate 75 is “indefinitely closed” in both directions near Detroit following a large but non-fatal accident involving a tanker truck Wednesday night, the Associated Press reported.