NHTSA Finalizes Automatic Braking Rule to Advance Road Safety

New cars will be required to include automatic detection and braking technology for vehicles and pedestrians by 2029.

1 minute read

May 1, 2024, 6:00 AM PDT

By Diana Ionescu @aworkoffiction


Close-up of car steering wheel and dashboard with driver's hand on steering wheel and illustration of automatic braking system on windshield with 'STOP' graphic.

ambrozinio / Adobe Stock

The U.S. Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) issued its final update to federal regulations that govern vehicle design, mandating new features to protect pedestrians and prevent crashes. The new Federal Motor Vehicle Safety Standard calls for automatic emergency braking (AEB) technology for vehicles and pedestrians on all passenger cars and light trucks by 2029.

According to a press release from the NHTSA, “The new standard requires all cars be able to stop and avoid contact with a vehicle in front of them up to 62 miles per hour and that the systems must detect pedestrians in both daylight and darkness. In addition, the standard requires that the system apply the brakes automatically up to 90 mph when a collision with a lead vehicle is imminent, and up to 45 mph when a pedestrian is detected.” The technology is designed to detect pedestrians and vehicles during daylight and darker conditions. 

The agency estimates this could save over 360 lives each year, based on fatality statistics. The standard fulfills a provision in the Bipartisan Infrastructure Law and advances the National Roadway Safety Strategy, a federal effort to reduce traffic fatalities and injuries.

Monday, April 29, 2024 in National Highway Traffic Safety Administration

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 16, 2025 - Diana Ionescu

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Two people on bikes in red painted bike lane with bus in traffic lane next to them.

Understanding Road Diets

An explainer from Momentum highlights the advantages of reducing vehicle lanes in favor of more bike, transit, and pedestrian infrastructure.

April 17 - Momentum Magazine

Aerial view of large warehouses across from development of suburban single-family homes in Jurupa, California with desert mountains in background.

New California Law Regulates Warehouse Pollution

A new law tightens building and emissions regulations for large distribution warehouses to mitigate air pollution and traffic in surrounding communities.

April 17 - Black Voice News

Purple Phoenix light rail train connected to overhead wires at sunset.

Phoenix Announces Opening Date for Light Rail Extension

The South Central extension will connect South Phoenix to downtown and other major hubs starting on June 7.

April 17 - Arizona Republic