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Caterpillar Inc., which said Thursday it has signed an agreement to develop a heavy-duty truck with Navistar International Corp., said it would not develop and sell engines that meet 2010 emissions standards to other truck original equipment manufacturers.

WASHINGTON — Several prototype Class 8 hybrid trucks are currently under development, but the technical and economic obstacles in the way of placing reliable and fuel-efficient heavy hybrid over-the-road trucks in service remain daunting, experts told a House subcommittee.

Soaring fuel prices have driven trucking bankruptcies up 143% over the same time last year, and industry analysts said the market may need to consolidate more before it improves for those companies that survive, the Associated Press reported.

Global Positioning System location-finding and navigation services are generating increasing revenue as the satellite-based technology is embedded in a wider range of mobile devices, according to a report from the European firm ABI Research.

Truckload carrier U.S. Xpress Enterprises said its Xpress Global Systems subsidiary finalized its purchase of Pinner Transportation. Terms were not released.

Diesel engine maker Cummins Inc. plans to temporarily lay off 125 workers from its midrange engine plant in Indiana because of declining pickup truck demand, the Associated Press reported Monday.

Iteris Inc., which makes lane-departure warning systems for the trucking industry, reported its fiscal fourth-quarter profit improved from a year ago.

Diesel engine maker Cummins Inc. said it named Tom Linebarger to replace Joe Loughrey as the company’s president and chief operating officer, effective Aug. 1.

Ryder System said Wednesday it appointed John Williford to serve in the newly created position of president of Ryder's global supply chain solutions unit.