President Donald Trump's administration will unveil revised self-driving guidelines within the next few months, the head of the U.S. Transportation Department said June 5, responding to automakers' calls for regulations that will eliminate barriers and allow autonomous vehicles on the road.

President Donald Trump vowed on March 4 to cut red tape to speed up approval of infrastructure projects and said his overhaul could top $1 trillion on roads, tunnels and bridges, one of his 2016 election campaign promises.

The U.S. Federal Aviation Administration announced on June 13 that it is proposing a $350,000 civil fine against Amazon.com Inc. for shipping a product that allegedly violated hazardous materials regulations and injured several UPS workers who handled the package.

An automaker trade association warned April 8 that U.S. auto safety regulators' timetable for unveiling guidance on the deployment of self-driving cars may be too aggressive.