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Drug use by workers in five sectors of the U.S. economy — including the transportation/warehousing sector — showed significant increases from 2015 to 2017, according to a new analysis of more than 10 million urine drug test results nationally by drug testing firm Quest Diagnostics.

Academics, stakeholders, policymakers and agency officials from every level of government are expected to meet in downtown Washington in January for one of the largest gatherings of the country’s transportation community.

Which states had the most user interactions with Transport Topics on Facebook this year? Which tweets attracted the most engagement? See maps, rankings.

In the first full year of ELD compliance, waivers and compliance dominate the top 10. Amazon continues to make headlines as well.

Uber Technologies Inc., which halted its self-driving car program after the death of a pedestrian in March, resumed testing of self-driving cars on public roads in Pittsburgh on Dec. 20, the company said.

These are TT's Top 10 most popular cartoons of 2018, ranked by the number of views on our website. The cartoons by Philip "Shade" Kightlinger are one of the most popular features all year on TTNews.com.

The federal government has partially shut down after lawmakers failed to pass a spending bill because of an impasse with President Donald Trump over his demands to fund a wall on the U.S.-Mexico border.

The Federal Motor Carrier Safety Administration on Dec. 21 determined that federal rest-break laws pre-empt California’s separate meal-and-rest-break requirements, handing a victory to trucking industry groups.

Canadian gross domestic product grew at the fastest pace in five months on a lift from manufacturing, while oil made an unexpected contribution as prices began to fall for Alberta crude.

U.S. consumer spending rose more than forecast in November and the prior month was revised higher, a sign the biggest part of the economy is again poised to drive growth this quarter. An underlying inflation gauge watched by the Federal Reserve showed a slight pickup.