There’s no shortage of heated opinions in trucking, but few topics spark CB chatter and policy battles like speed limiters. Supporters call them a safety breakthrough. Critics — like me — call them a dangerous oversimplification.
I’ve lived the downside firsthand. Years ago, I was assigned a truck capped at 55 mph because my Michigan-based company followed the state’s top legal truck speed. Problem was, they sent me to Kentucky, Iowa, Nebraska, Missouri — places where the speed limit was 70 or higher. Floored flat out, I had to hug the right line while cars and trucks flew past. The CB radio lit up with curses. I couldn’t pass, couldn’t merge safely, and couldn’t make time. It wasn’t just frustrating — it was unsafe.
So let’s break it down: What are speed limiters? Why do they matter? And what does the research actually say?
⚖️ The Pros: What Supporters Say
- Improved Safety: Some studies show trucks with limiters have up to 50% fewer crashes. Other studies say they cause them.
- Fuel Efficiency: Lower speeds reduce fuel consumption, saving fleets money and cutting emissions.
- Environmental Impact: Less fuel = fewer greenhouse gases. Advocates say limiters could save $1.1 billion annually in fuel and emissions.
- Level Playing Field: Big fleets argue that mandatory limiters prevent “speed wars” and promote consistency.
❌ The Cons: What Drivers Know
- Dangerous Speed Differentials: Trucks limited to 60–65 mph on highways posted at 75–85 mph create rolling bottlenecks and risky passing maneuvers.
- Driver Stress & Road Rage: Being unable to keep pace with traffic increases tension — and the risk of aggressive driving around you.
- Reduced Productivity: Fewer miles = fewer loads = lower pay. Limiters can directly impact driver income.
- Parking & HOS Pressure: Slower speeds mean longer drive times, which can push drivers into parking shortages and HOS violations.
? What the Research Actually Shows
- The FMCSA and NHTSA withdrew the speed limiter mandate in July 2025, citing insufficient data and “significant safety concerns”.
- OOIDA led a coalition of 17 organizations opposing the rule, arguing that uniform traffic flow is safer than artificial speed caps.
- Some safety advocates still push for limiters, but even they admit that technology like adaptive cruise control and collision mitigation may offer better solutions.
? Driver Tips
- If your fleet uses limiters, plan routes with time buffers and avoid high-speed corridors when possible.
- Use CB and GPS apps to anticipate bottlenecks and aggressive traffic zones.
- Advocate for smart tech (AEB, adaptive cruise) instead of blanket speed caps.
? Call to Action: Let’s Hear From the Road
Whether you’re for speed limiters, against them, or just trying to make your next delivery without a side of road rage, your voice matters.
- Drivers: Share your experience. Have limiters helped or hurt your safety and schedule?
- Fleet Managers: Are limiters saving fuel or costing you drivers?
- Lawmakers & Safety Advocates: Are you listening to the people who live this every day?
I may be against speed limiters — but I’m also against pineapple on pizza, so let’s not pretend I’m the final word. What I do believe in is real-world input, not scare tactics or one-size-fits-all mandates.
Drop a comment, share your story, or tag someone who’s got a strong opinion. Let’s make this debate about facts, not friction.
? Final Thought
Speed limiters sound good on paper — until you’re the one stuck in the right lane, dodging road rage and watching your logbook tick down. Safety matters. So does real-world experience. Before regulators slap a one-size-fits-all solution on every rig, they need to listen to the people who live behind the wheel.