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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.

Get a group of truckers together anywhere in this country, and Minnesota’s “Fatigued Driving Evaluation Checklist” is bound to come up. The 75-item list gained national prominence when the Owner-Operator Independent Drivers Association sued the Minnesota State Patrol in federal court in an attempt to stop its use.

An American Trucking Associations official told a Senate committee Tuesday that climate-change legislation would impose significant costs on American consumers.

American Trucking Associations has replaced J.J. Keller & Associates as the provider of Vehicle Maintenance Reporting Standards products.

P.A.M. Transportation Services Monday named Daniel Cushman its new president, replacing long-time president Robert Weaver.

The Department of Transportation has approved a $386 million loan to finance construction on the Triangle Expressway in North Carolina.

Navman Wireless has added truck-specific routing to the M-Nav 750, the latest incarnation of the Glenview, Ill., company’s handheld GPS unit for fleet users.

YRC Worldwide said it has reached a new cost-cutting agreement with the Teamsters union and hired a financial adviser to work with key lenders as part of a broad effort to boost the carrier’s cash position.