With increasing focus on road safety, commercial truck owners and fleet operators must stay up to date with new compliance standards. One key advancement is Automatic Emergency Braking (AEB)—a system that’s quickly becoming a legal requirement in the United States. In this guide, we’ll break down what AEB is, the current regulations, and whether you need to install it on your truck in 2025.
What is Automatic Emergency Braking (AEB)?
Automatic Emergency Braking is a vehicle safety system designed to prevent or lessen the severity of crashes. Using sensors, radar, or cameras, it detects potential forward collisions and automatically applies the brakes if the driver doesn’t respond in time.
AEB Requirements for Trucks in the U.S. (At a Glance)
| Truck Class | Weight Range | AEB Requirement Status | Compliance Timeline |
|---|---|---|---|
| Class 1–2 | Up to 10,000 lbs | ✅ Required for new light-duty vehicles | By September 2029 |
| Class 3–6 | 10,001 – 26,000 lbs | ⚠️ Proposed rule for new vehicles | Within 4 years of final rule |
| Class 7–8 | Over 26,000 lbs | ⚠️ Proposed rule for new vehicles | Within 3 years of final rule |
| Existing Trucks | All weights | ❌ Not mandatory (yet) | Voluntary (recommended for safety) |
AEB Requirements for Trucks in the U.S. (2025 Update)
In 2023, the National Highway Traffic Safety Administration (NHTSA) and the Federal Motor Carrier Safety Administration (FMCSA) proposed regulations to make AEB systems mandatory on new heavy vehicles.
Here’s what you need to know:
- Light-duty vehicles (cars and small trucks):
Required to have AEB systems by September 2029. - Heavy-duty vehicles (Class 3–8 trucks):
Proposed rules require installation based on truck class:- Class 7–8 trucks (over 26,000 lbs): Must be equipped with AEB within 3 years of the final rule adoption.
- Class 3–6 trucks (10,001–26,000 lbs): Have 4 years from the final rule to comply.
Note: These rules apply to newly manufactured vehicles, not those already on the road—although voluntary retrofitting is encouraged.
Should You Install AEB on Your Truck in 2025?
While older trucks aren’t legally required to have AEB in 2025, there are strong reasons to consider installation:
- ✅ Enhanced Safety: Prevents costly and dangerous rear-end collisions.
- ✅ Insurance Benefits: Some carriers offer reduced premiums for trucks with safety systems.
- ✅ Fleet Efficiency: Fewer accidents mean less downtime and lower repair costs.
- ✅ Future-Proofing: Get ahead of compliance before it becomes mandatory.
Final Thoughts
In 2025, installing AEB is not mandatory for existing trucks, but the regulation is on its way for new vehicles—especially in Classes 3 to 8. If you’re planning to upgrade your fleet or want to prioritize safety and compliance, now is the time to consider AEB installation.
Faqs
Is AEB mandatory for trucks in 2025?
Not yet for existing vehicles. New heavy trucks may need to comply starting within 3–4 years of the final rule.
Which trucks will need AEB under U.S. law?
Class 7 and 8 trucks within 3 years, and Class 3–6 within 4 years of the rule’s enactment.
What are the benefits of AEB for trucking companies?
Improved safety, fewer collisions, lower insurance rates, and less vehicle downtime.
