New vehicles will require automatic emergency braking systems under federal proposal

The National Highway Traffic Safety Administration has proposed requiring automatic emergency braking systems on nearly all new vehicles sold in the US.
The technology could save hundreds of lives and prevent thousands of injuries annually according to estimates.
New vehicles would need to have automatic emergency braking technology within 3 years of the rule's finalization.
The emergency braking systems would need to automatically stop vehicles to avoid collisions with vehicles or pedestrians at varying speeds.
The proposed rule is part of a larger strategy to improve road safety and reduce traffic fatalities in the US.