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Tesla Inc. has met with California and Nevada agencies about testing an autonomous semi-truck ahead of CEO Elon Musk’s unveiling of the next addition to the electric-car maker’s lineup.

ORLANDO, Fla. — Electronic logging devices need to be registered with the federal trucking regulatory agency in order to be valid, an agency official reminded law enforcement officials on Aug. 9.

Several states have adjusted their freight transportation schedules to avoid the influx of traffic bound to snarl the nation’s highways as people descend on the best viewing spots for the upcoming solar eclipse.

The Port of Virginia began its July-to-June fiscal year with another record-breaker.

Regulators appear likely to accept the financially beleaguered Postal Service’s request for more freedom to raise the price of mailing letters. It would be the biggest change in the Postal Service’s pricing system in nearly a half-century, allowing stamp prices to rise beyond the rate of inflation.

This month marks the 10th anniversary of a deadly bridge collapse in Minnesota, which shaped one of the earliest conversations about structurally deficient bridges and the significant funding needed to fix or replace infrastructure nationwide.

The U.S. average retail price of diesel jumped 5 cents to $2.581 in the sixth consecutive increase for trucking's main fuel.

The Arizona Department of Transportation installed automatic verification systems to save time and costs for the more than 9 million trucks that pass through its weigh stations each year.

Robert Sumwalt will serve as chairman of the National Transportation Safety Board after the Senate confirmed him to the post Aug. 3.