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Paccar Inc.’s parts dealers are offering the company’s Engine Control Systems Purifilter, an aftermarket passively regenerating diesel particulate filter approved by the California Air Resources Board for installation and use in a wide variety of Class 8 trucks.

ArvinMeritor Inc. said Tuesday that it has presented Wal-Mart Stores Inc. with a prototype heavy-duty truck equipped with the first Meritor diesel-electric drivetrain.

The U.S. Senate confirmed several key cabinet posts, including Ray LaHood as secretary of transportation, but the Obama administration has yet to announce the president’s choices to lead several key transportation agencies within DOT.

American Trucking Associations will exhaust all legal avenues to fight employee-only concession requirements contained in the Port of Los Angeles’ clean trucks plan, ATA President Bill Graves said.

The Federal Motor Carrier Safety Administration has pulled back its formal proposal to require some carriers to use electronic onboard recorders, with indications the Obama administration may want to expand their use.

December truck tonnage plummeted 14.1% from year-earlier levels and 11.1% from November, the worst freight performance in more than a decade.

Surface trade among the United States, Canada and Mexico fell 13.8% in November from a year earlier, the Department of Transportation said Thursday.

Truckload carrier Knight Transportation’s fourth-quarter profit rose to $16.1 million, or 19 cents a share, from $13.8 million, or 16 cents, a year ago.

Transportation and third-party logistics firm C.H. Robinson Worldwide said its fourth-quarter profit rose to $88.9 million, or 52 cents a share, from $85.3 million, or 49 cents, a year ago.