Data / Federal rules / 2024-09054
Federal Motor Vehicle Safety Standards; Automatic Emergency Braking Systems for Light Vehicles
The National Highway Traffic Safety Administration published this final rule in the Federal Register on May 9, 2024. It took effect on July 8, 2024.
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What the agency says
This final rule adopts a new Federal Motor Vehicle Safety Standard to require automatic emergency braking (AEB), including pedestrian AEB (PAEB), systems on light vehicles. An AEB system uses various sensor technologies and sub-systems that work together to detect when the vehicle is in a crash imminent situation, to automatically apply the vehicle brakes if the driver has not done so, or to apply more braking force to supplement the driver's braking. This final rule specifies that an AEB system must detect and react to an imminent crash with both a lead vehicle or a pedestrian. This final rule fulfills a mandate under the Bipartisan Infrastructure Law (BIL) directing the Department to promulgate a rule to require that all passenger vehicles be equipped with an AEB system. The purpose of this final rule is to reduce the number of deaths and injuries that result from crashes in which drivers do not apply the brakes or fail to apply sufficient braking power to avoid or mitigate a crash, and to reduce the consequences of such crashes.
Key facts
- Document number
- 2024-09054
- Type
- Final rule
- Action
- Final rule
- Agency
- Transportation Department; National Highway Traffic Safety Administration
- Published
- May 9, 2024
- Takes effect
- July 8, 2024
- Dates
- Effective Date: This rule is effective July 8, 2024.
- Docket
- Docket No. NHTSA-2023-0021
- Regulation ID (RIN)
- 2127-AM37
- Code of Federal Regulations
- 49 CFR 571; 49 CFR 595; 49 CFR 596
- Topics
- Imports; Incorporation by reference; Motor vehicle safety; Motor vehicles; Rubber and rubber products
- Pages
- 110
Other documents from the National Highway Traffic Safety Administration
Everything from the National Highway Traffic Safety Administration · Rules on imports · Rules on incorporation by reference · Rules on motor vehicle safety · Published in May 2024
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.