Evidence shows a substantial increase in drugged-driving deaths as opiate use soars and marijuana has become legal.

The crash highlights concerns including crash worthiness, seat belt use and the patchwork of regulations.

The feds will no longer assume that a commercial vehicle driver is human, according to 'Automated Vehicles 3.0' guidance.

Faulty seat-belt pretensioners can spark excessively in a crash and ignite other materials or gases in the vehicle.

It's premature to regulate the self-driving vehicles being tested, the U.S. government's top auto safety official said.

A NTSB preliminary report raises new questions about the capabilities of Tesla's semi-autonomous driving system.

The car's sensors observed the pedestrian about six seconds before impact, according to a preliminary NTSB report.

The car's sensors observed the pedestrian about six seconds before impact, according to a preliminary NTSB report.