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The U.S. average retail price of diesel dropped 1.1 cents to $2.965 a gallon for the week of Jan. 21, despite an increase in crude oil prices to $53 per barrel, or $3 higher than a week before.

Rhode Island has again topped an advocacy group’s report that evaluates states’ road safety enforcement efforts.

Why don't consumers trust autonomous vehicles? Transportation Secretary Elaine Chao says it's partly because manufacturers need to do a better job explaining the vehicles' capabilities. Here's the week ahead for trucking on Capitol Hill.

The Oklahoma Department of Transportation has delayed the bidding process for upcoming infrastructure projects due to funding uncertainty caused by the ongoing partial shutdown of the federal government.

According to people close to the discussions, the two sides have so far made little progress on the issue that any deal Trump strikes with China may ultimately be judged on: ending what the U.S. has dubbed as decades of state-coordinated Chinese theft of American intellectual property.

The longest government shutdown in U.S. history entered its 32nd day on Jan. 22 with Senate Majority Leader Mitch McConnell expected to call up legislation to advance a proposal from President Donald Trump, which Democrats have already said they’ll reject.

The New York State Department of Transportation announced that state inspectors will begin enforcing federal electronic logging device rules, ending a year-plus stretch during which a lawsuit kept the state law enforcement in limbo and left federal inspectors as the sole enforcers of the rule in the state.

Colorado moved to boost electric-car sales by taking the first step toward adopting a zero-emission-vehicle mandate patterned after one in California that’s under threat from the Trump administration.

Michelin CEO Jean-Dominique Senard, a frontrunner to replace Carlos Ghosn atop Renault SA, has passed one of the tests required for the job: support of the French state.

Some of the world’s most conservative companies are starting to experiment with cleaner fuels and cutting-edge technologies to meet new standards starting next year that mandate steep cuts of sulfur emissions from oceangoing ships.