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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.

Covenant Transportation Group said late Monday it lost $7.8 million, or 56 cents a share, in the first quarter, compared with a loss of $2.1 million, or 15 cents, a year ago.

I want to know why diesel is so much more expensive than gasoline. Diesel is a byproduct of gasoline. It should be cheaper.