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Arkansas Best Corp.’s first-quarter profit jumped 78% to $8.5 million, or 34 cents a share, from $4.8 million, or 19 cents, a year earlier.

I am interested in the feedback on fuel prices displayed in “Letters to the Editor.” Unfortunately, most of the letters did not focus on two salient facts affecting the price of oil. The first is the dismal exchange rate of the U.S. dollar versus the euro, and the second is world demand for petroleum products.

The federal government’s Transportation Workers Identification Credential enrollment began Wednesday at three U.S. ports: Chattanooga, Tenn.; LaPorte, Texas; and Portsmouth, N.H.

Truckload carrier Knight Transportation’s first-quarter profit fell to $11.4 million, or 13 cents a share, from $16.6 million, or 19 cents, a year ago.

Transportation and logistics firm C.H. Robinson Worldwide’s first-quarter profit rose to $86.3 million, or 50 cents a share, from $73 million, or 42 cents, a year ago.

The Department of Transportation proposed Tuesday to boost fuel-efficiency standards for cars and light trucks by almost 25% by the year 2015.

Trucking technology system provider TransCore said its new Rate Index Pro product will provide single-lane, real-time truckload information that can be used in pricing and contract negotiations.

ARLINGTON, Va. — The Federal Motor Carrier Safety Administration’s medical review board backed a proposal to recommend to the agency that drivers who have undergone successful kidney-transplant surgery can resume driving 90 days later.

Forward Air Corp.’s first-quarter profit was $10 million, or 35 cents a share, compared with $10.3 million, or 34 cents, a year earlier.