Federal government to require automatic emergency braking in new vehicles

Washington — The Biden administration plans to require all new light-duty vehicles to come with automatic emergency braking, officials announced Wednesday.

The announcement comes amid consistently high traffic deaths after a spike in crashes during the pandemic. Leaders at the National Highway Traffic Safety Administration estimated the rule, if finalized, would save more than 360 lives annually.

“We know this work is going to save lives, make sure that there won’t be that empty chair at the dinner table,” said Deputy Transportation Secretary Polly Trottenberg. “It will avoid billions of dollars in economic cost, saving lives, reducing injuries and property damage.”

Under the proposed rule, vehicles would have to have an AEB system that warns drivers of a potential crash at any speed greater than 6.2 miles per hour. The warning would be auditory and visual, and haptic warnings (like a vibration in the steering wheel) would be allowed.

Vehicles would automatically brake when a crash with a car or pedestrian is imminent over 6.2 mph and would be required to alert the driver when the system isn’t working, such as the sensors being covered by snow, sun glare or fog.

The systems would need to avoid crashes with other vehicles at speeds of up to 50 mph when the driver doesn’t react, Chief Counsel Ann Carlson said, and would need to avoid pedestrians at speeds up to 37 mph. NHTSA was required by Congress to develop the rule as a part of the infrastructure law that passed in 2021.

“With this proposal, we could change a high-speed crash from a deadly one to a lower-speed crash with minor injuries or just property damage,” Carlson said. She added that it will particularly help protect pedestrians and cyclists, who have been a “dark spot” in recent data, with deaths increasing 53% in the last decade.

All of the requirements would need to be phased in within four years of the rule being finalized; all car-crash braking requirements and pedestrian braking in daylight would be met within three years. Cars would be required to be able to detect pedestrians in the dark at high speeds after four years. The proposed rule will undergo a 60-day public comment period before finalization.