In 2015, 4,067 people were killed in large truck crashes in the United States


Arlington, VA (August 26, 2016) – After ten years since a petition for rulemaking was filed, the National Highway Traffic Safety Administration (NHTSA) and the Federal Motor Carrier Safety Administration (FMCSA) just released a Notice of Proposed Rulemaking (NPRM) for the Heavy Vehicle Speed Limiter rule. TSC supports a rule that extends the set speed requirement to all commercial motor vehicles (CMVs) with a gross vehicle weight rating of more than 26,000 pounds that are already equipped with a speed limiting device, and that requires the speed limiters to be set at 65 miles per hour. Unfortunately, this proposed rule fails to outline either of these requirements.

As TSC has stated before, this technology has been built into most truck’s engine control module (ECM) since the 1990s. The agencies reaffirmed this in the NPRM. Nevertheless, they have chosen, so far, to only apply this rule to new trucks, while asking for comment “on whether to require that the speed limiting devices in these older CMVs be set to a speed not greater than a maximum specified set speed.” It is unreasonable that in the ten years since the petition was filed and after acknowledging in their NPRM that ECMs “have been installed in most heavy trucks since 1999,” that NHTSA and FMCSA were unable to propose a rule that extended to older CMVs with this technology already installed.

Furthermore, it is discouraging that after all of these years the agencies were unable to decide upon a speed limit, 60 mph, 65 mph, or 68 mph. That is a range of eight miles per hour. This may seem like a minimal difference in speed, but as the agencies note in their NPRM – this can have a huge effect on the impact force during a crash: “As speed increases, so does the amount of kinetic energy a vehicle has.” So how can the agencies note that a difference of five miles per hour can greatly enhance the kinetic energy of a vehicle, while considering setting speed limiters at 60 mph or 68 mph? The fact of the matter is that the agencies should have selected a speed to set the limiters before publishing the NPRM so that the public could have commented on their choice; asking for comments on all three options should have been asked when the petition was granted back in 2011.

We hope between now and the publication of this rule, NHTSA and FMCSA remember that their primary goals are to promote safety, and will implement a commonsense, life-saving rule.


Statement on Announcement of Notice of Proposed Speed Limiter Rule

Notice of Proposed Rulemaking Requiring Setting of Speed Limiters in Large Trucks to be Released;

TSC Encourages Agency to Apply Regulation to All Large Trucks

Arlington, VA (August 18, 2016): The Truck Safety Coalition, a partnership between Citizens for Reliable and Safe Highways (CRASH) and Parents Against Tired Truckers (PATT), is pleased that the National Highway Traffic Safety Administration’s (NHTSA) promulgated a Proposed Rule requiring speed limiters to be set on large trucks. This standard equipment, which is built into the truck’s engine control module, has actually been manufactured in large trucks since the early 1990s. While requiring speed limiters will advance truck safety and prevent needless truck crash injuries and fatalities, if the agency decides to only apply the rule to new trucks, it will greatly blunt the potential safety benefits.

John Lannen, Executive Director of the Truck Safety Coalition, explained the importance of this rule applying to all large trucks rather than just newer units: “According to findings from the Large Truck Crash Causation Study, more than one out of five large truck crashes were coded as ‘traveling too fast for conditions.’ By capping the speed at which large trucks can travel, this will not only reduce the occurrences of truck crashes, but will also greatly reduce the risk of death or injury by decreasing the impact of the collision.”

“Additionally, the safety benefits of speed limiters have not just been studied, but have also been realized by companies that equipped their trucks with this life-saving technology,” Lannen continued. “One company found that their non-speed limited vehicles were involved in over 40 percent of potentially severe crashes, despite only constituting 17 percent of their fleet. In Ontario, Canada, there was a 24 percent reduction in truck crashes within one year of mandating speed limiters to be set at 65mph. And when the Federal Motor Carrier Safety Administration (FMCSA) studied speed limiters, the agency determined that trucks equipped with speed limiters were nearly 50 percent less likely to be involved in a crash. Clearly this regulation will produce safety benefits, but the extent of those benefits can only be maximized by applying this rule to as many large trucks as possible.”

Lannen, concluded, “While we welcome this safety advancement, we find it necessary to point out that this rule took far too long to be published. The petition to initiate the rulemaking was filed in September of 2006. After a decade and almost 30 delays, it is clear that there is a problem with the rulemaking process. Unfortunately, one of the consequences of this broken system are the thousands of unnecessary speeding-related truck crashes that have occurred between then and now. We look forward to the United States catching up to other leading countries on the implementation of speed limiters, and will continue working to ensure that rather than following, the United States will lead on other safety advancements in trucking, in particular – automatic emergency braking.”