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A year after U.S. officials agreed to allow Mexican trucks into the country, only four Mexican carriers are participating, far below the number the United States has said would be needed to judge the safety of Mexican trucks.

UPS said it has completed testing of its “plastic truck,” a composite-bodied vehicle that’s lighter and uses 40% less fuel than its current package cars, and will soon add 150 of the new vehicles to its delivery fleet.

Kenworth Truck Co. said its new T680 heavy-duty truck has been SmartWay-certified by the U.S. Environmental Protection Agency.

The federal Compliance, Safety, Accountability program is in danger of turning its focus from its original intent — to reduce truck-related crashes, fatalities and injuries, American Trucking Associations said Thursday.

Allied Systems Holdings Inc., the largest U.S. car hauler, last week filed for Chapter 11 bankruptcy protection, the second time it has done so, saying it’s continuing to provide service and blaming weakness in the car and light-truck business for the move.

The Midwest-based intermodal trucking company formerly known as Universal Transportation Services has changed its name to Calhoun Truck Lines, the company announced.

Celadon Trucking Services said it has agreed to buy a portion of the equipment owned by Hiner Transport LLC. Terms of the deal were not disclosed.

Canadian bulk trucking company Trimac Transportation said it will acquire Ontario-based specialized bulk carrier Liquid Cargo Lines.

Bigger trucks and a field study of the hours-of-service restart provision are among items American Trucking Associations said it wants included in any highway bill that emerges from the House-Senate conference committee weighing the legislation.