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Automakers may forego as much as $4 billion a year in light truck sales to prevent states led by California from setting their own mileage standards, Bloomberg reported Tuesday.

No one knows the Canada-U.S. border and the difficulties even the most trusted individuals and companies have had crossing it in the “security trumps trade” post-9/11 world than truckers. It’s not surprising, then, that truckers welcome the announcement from U.S. President Barack Obama and Canadian Prime Minister Stephen Harper that the two countries are embarking upon negotiations aimed at improved cooperation and coordination at the border.

Just as the U.S. economy seems to be growing some serious muscle, international events are threatening to intervene in what has become a period of steady business improvement.

Nearly 17 years after Congress ordered federal regulators to put in writing that motor vehicles are not to park on railroad tracks while waiting for the traffic to clear or a light to turn green, two agencies said they have rectified a series of “misunderstandings” with state transportation officials and have offered a new proposal.

CORAL GABLES, Fla. — The U.S. Transportation Department’s new safety program is putting pressure on intermodal fleets, which say their safety records are being hurt in part by violations that were supposed to be rectified by new federal chassis safety rules.

Consumer confidence rose to a three-year high in February, according to the Thomson Reuters/University of Michigan consumer sentiment index released Friday.

The Texas Transportation Commission has voted to lower truck tolls on two Austin-area highways in an attempt to encourage trucks to use them.

U.S. gross domestic product rose at a 2.8% annual rate in the third quarter, a smaller rate than the previous estimate, the Commerce Department said Friday.