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Caterpillar Inc., which lost its dominant position in heavy-duty engines last year because of persistent problems with 2007-compliant models, said it will pull out of the North American Class 8 market by 2010, except for a severe-duty truck and engine in partnership with Navistar International Corp.

Caterpillar Inc. and Navistar International Corp. said they will pursue business opportunities around the world together, as Caterpillar bowed out of the North American heavy-duty engine market last week.

BELSPRING, Va. — Inside Norfolk Southern Railway’s Cowan Tunnel at the foot of Virginia’s Blue Ridge Mountains, the latest intermodal ad-vancement is moving forward — 4 feet at a time.

The U.S. diesel average inched downward for the second consecutive week, dipping 1.5 cents to $4.692 a gallon, while gasoline topped the $4 mark for the first time ever, the Department of Energy reported.

Rail and intermodal traffic fell for the week ended Saturday compared with the same week a year ago, the Association of American Railroads said.

The call center run by the contractor responsible for overseeing the Transportation Worker Identification Credential program has delayed additional enrollments by leaving workers on hold for more than 20 minutes on average, the chairman of the House Committee on ºÚÁϳԹÏÍøland Security said.

I joined the company where I work about three months ago, and one of my top-priority jobs has been fuel usage. We had to look at our idling time because all our trucks are sleepers and the drivers run in 48 states.

Most of the machines that process the Transportation Worker Identification Credential cards are broken, according to a House lawmaker, the Associated Press reported.