he National Highway Traffic Safety Administration (NHTSA) has announced a significant update to vehicle safety standards. Starting in 2029, Automatic Emergency Braking (AEB) will become a mandatory feature for all new passenger vehicles in the United States.


Regulatory Details:

According to the new regulation, any new passenger vehicle weighing under 10,000 lbs (approximately 4,500 kg) sold in the USA must be equipped with AEB technology.

This move is aimed at enhancing road safety, with the government highlighting the technology’s potential to save up to 400 lives annually and prevent thousands of injuries.

Specifications of AEB Systems: The legislation specifies that the AEB system must:

  • Enable a vehicle to autonomously stop and avoid collisions with the vehicle in front when traveling at speeds of up to 100 km/h, under both day and night conditions.
  • Automatically apply brakes at speeds of up to 145 km/h if a collision with a vehicle ahead is imminent.
  • Detect and avoid collisions with pedestrians at speeds of up to 72 km/h.


Cost and Implementation:

The addition of AEB is expected to increase the cost of a new vehicle by approximately $84. However, NHTSA has granted automakers the flexibility to choose the sensors and technologies to meet these requirements, fostering innovation while ensuring safety.

Timeline and Compliance:

All automakers are required to comply with this regulation by September 1, 2029. An additional year’s grace period will be granted to low-volume manufacturers to facilitate a smoother transition.

Key Takeaways:

  • Automatic Emergency Braking (AEB) will be mandatory for all new passenger vehicles sold in the USA from 2029.
  • The regulation covers vehicles under 10,000 lbs and includes capabilities to prevent collisions at various speeds and conditions.


  • The expected cost increase per vehicle is $84, with automakers allowed to select suitable technologies.
  • The deadline for compliance is September 1, 2029, with an extra year for low-volume manufacturers.

This new mandate marks a crucial step towards improving vehicle safety and reducing road accidents in the United States, aligning with global trends in automotive safety enhancements.

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