U.S. Transportation Sec. Anthony Foxx

Suggesting 60-68 mph, FMCSA, NHTSA propose truck speed limiters

Aug. 26, 2016
Agencies say speed limiters would save lives, increase safety, while owner-operators group says they'd be "dangerous"

A long-awaited, much-debated proposal for requiring speed limiters on heavy trucks was released today by the National Highway Traffic Safety Administration (NHTSA) and the Federal Motor Carrier Safety Administration (FMCSA).

While the 118-page proposal suggests that speed limits of 60, 65 or 68 mph would be beneficial, the agencies will get public input before setting the actual number, according to U.S. Transportation Sec. Anthony Foxx. The speed limit would be a physical one accomplished by a speed-governing device and would apply to all newly-manufactured vehicles with a gross vehicle weight rating more than 26,000 lbs. (11,793.4 kg). 

The rule comes from both NHTSA and FMCSA to broaden its applicability. According to the proposed rule, NHTSA would require speed limiters for multipurpose passenger vehicles, trucks, buses and school buses, while FMCSA would require them for commercial motor vehicles.

"Based on the agencies' review of the available data, limiting the speed of these heavy vehicles would reduce the severity of crashes involving these vehicles and reduce the resulting fatalities and injuries. We expect that, as a result of this joint rulemaking, virtually all of these vehicles would be limited to that speed," the proposal reads, with "that speed" yet to be determined.

In a release, Foxx argues that the proposed rule would save lives and more than $1 billion in fuel costs annually, making it "a win for safety, energy conservation and our environment." Foxx has referred to this rulemaking as a top priority for the Department of Transportation, and the proposed rule originally was due to be published in March 2014; the idea behind it dates back nearly a decade.  

NHTSA Administrator Mark Rosekind calls the proposal "basic physics" in the same release. "Even small increases in speed have large effects on the force of impact," he states. "Setting the speed limit on heavy vehicles makes sense for safety and the environment." And FMCSA Administrator Scott Darling contends that the proposal "will save lives while ensuring our nation's fleet of large commercial vehicles operates efficiently."

The proposed rule has been submitted for publication in the Federal Register, and once that happens there will be a 60-day period for public comment.

One group that's sure to have something to say will be the Owner-Operator Independent Drivers Association (OOIDA), which has long been opposed to truck speed limiters and makes almost a polar opposite argument regarding the devices as the government does. On the heels of the proposed rule's release, OOIDA issued a statement calling it "dangerous" not only for truck drivers but for passenger vehicle drivers as well.

"The government's proposal to mandate speed limiting devices on large trucks would be dangerous for all highway users," OOIDA states. "Such devices create speed differentials that lead to more crashes and promote road rage among other motorists."

Todd Spencer, executive vice president of OOIDA, further states that "highways are safest when all vehicles travel at the same relative speed."

About the Author

Aaron Marsh

Before computerization had fully taken hold and automotive work took someone who speaks engine, Aaron grew up in Upstate New York taking cars apart and fixing and rewiring them, keeping more than a few great jalopies (classics) on the road that probably didn't deserve to be. He spent a decade inside the Beltway covering Congress and the intricacies of the health care system before a stint in local New England news, picking up awards for both pen and camera.

He wrote about you-name-it, from transportation and law and the courts to events of all kinds and telecommunications, and landed in trucking when he joined FleetOwner in July 2015. Long an editorial leader, he was a keeper of knowledge at FleetOwner ready to dive in on the technical and the topical inside and all-around trucking—and still turned a wrench or two. Or three. 

Aaron previously wrote for FleetOwner. 

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