FMCSA Details How It Will Conduct Restart Study

March 19, 2015

By David Cullen

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The Federal Motor Carrier Safety Administration has posted a plan for how it will conduct the “naturalistic study” of the operational, safety, health and fatigue impacts of the hours-of-service restart provisions that Congress has mandated it to conduct.

Per the agency, the plan explains how a research team will measure and compare the fatigue and safety performance levels of drivers who take two or more nighttime rest periods during their 34-hour restart break and those drivers who take only one nighttime rest period during their restart break.  

The plan details the assessment technologies that will be used, study procedures, and the sampling plan and data analyses involved. 

Congress ordered the agency to conduct the naturalistic study when it suspended the more restrictive restart that had gone into effect in 2013.

That rule required any driver taking a 34-hour restart to take off two periods between 1 a.m. and 5 a.m. and limited the restart to once a week. FMCSA put that provision in place on the basis of research indicating that nighttime sleep is more recuperative than daytime sleep.

Those restrictions were rolled back in December by Congress and will remain so until FMCSA completes the mandated study of the rule or until September 30 of this year, whichever comes later.

Click here to view the FMCSA study plan.


  1. 1. Mr.LeeRoy Jackson [ March 20, 2015 @ 05:15AM ]

    Truck drivers done just fine all these year with out Dot-the congress or government I haven't seen any of these people out here on any of these hiways and away from there families weeks or some times mouths but u sit behind desks and set rules for the trucks where u don't know the job we do . Dot is only out here to bring in money for government there not out here for the trucks .If anyone wants to come congress person want to come out and ride with trucks it should be mandate that all have to before u ever make a rule for truckers We Don't Need A Restart we need to be left alone so u rich people can eat and dress and drive yur fine cars all which we haul right down to what u wipe yur behinds toilet paper .So we trying to a job with the headaches .Thank you

  2. 2. Richard Gonzalez [ March 20, 2015 @ 01:15PM ]

    Most drivers realize that rules are set in place for public safety. In my opinion government is doing a horrible job in creating ways to shut truck drivers down. Why don't all members of government have random hair, urine, and alcohol testing done on themselves? I'm sure thousands of government employees are abusing illegal substances.. Why dont all members of government have to take 2 periods between 9 am and 1 pm without pay before being able to come back to work, the following week? I mean fair is fair. They continue to bully all of us truck drivers year after year. Why dont government employees have on board recorders installed in their vehicles so, taxpayers and watchdog groups can keep tabs on their overspending? Just sayin!

  3. 3. Cliff Downing [ March 21, 2015 @ 07:51AM ]

    One thing that seems to get missed by many folks, is that we did not have any reset stuff prior to 2003. For almost 70 years, all that could be used was the hour recap. Guess what? That provision was never removed or even touched. Just recap and drive on. The whole 34 hr reset thing is a joke. Just eliminate it if it is a problem. I have spent more of my driving career without the reset provision in the HOS than with it. Was able to make money before it came about. This whole 34 reset game is a colossal waste of money and time and plays on emotions to where folks check their brain at the door.


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