Hours of Service
The FMCSA defines a CMV as a single or combination (truck and trailer) vehicle with a gross weight of 10,001 pounds (4,536 kg) or more, or a vehicle used to transport hazardous materials in quantities requiring the vehicle to be marked or placarded under the hazardous materials regulations. The length of time a driver may spend operating a CMV is limited by a set of rules known as the hours of service (HOS). These laws are designed to protect the general motoring public by reducing accidents caused by driver fatigue.
The first version of the HOS were enacted in 1938, and three revisions have been made since. The more recent revisions have relied on research into the human circadian rhythm (the tendency for humans to follow a natural 24-hour cycle with 8 hours of uninterrupted sleep). A driver is limited to 11 hours of actual driving within a 14-hour period, after which he/she must rest for 10 hours. The rules do not explicitly require that a driver must sleep, only that a driver must take a period of "rest" within the sleeper berth or off duty (i.e., at home).
Keeping track of a driver's HOS requires the use of a log book. A truck driver's log book is a legally defined form containing a grid outlining the 24-hour day into 15-minute increments. The driver must specify where and when he/she stopped between driving shifts, what duties were performed (if any), along with the driver's name, truck number, company info, and other information. The driver must also present his or her log book to authorities upon request, for inspection. In lieu of a log book, a motor carrier may substitute an electronic on-board recorder to record the driver's hours.
Other articles related to "hours of service, hours of, hour, hours":
... Drivers will be limited to 8 hours of continuous driving before requiring at least a 30 minute break ... The 34 hour restart provision will still be in effect ... the sleeper berth, will be able to count it as off-duty, and up to 2 hours either side of a sleeper-berth period while in the passenger seat will also ...
Famous quotes containing the words hours of, service and/or hours:
“Put in hours and hours of planning, figure everything down to the last detail, then what? Burglar alarms start going off all over the place for no sensible reason. A gun fires of its own accord and a man is shot. And a broken-down old house no good for anything but chasing kids has to trip over us. Blind accidents. What can you do against blind accidents?”
—Ben Maddow (19091992)
“We too are ashes as we watch and hear
The psalm, the sorrow, and the simple praise
Of one whose promised thoughts of other days
Were such as ours, but now wholly destroyed,
The service record of his youth wiped out,
His dream dispersed by shot, must disappear.”
—Karl Shapiro (b. 1913)
“... everybody who is human has something to express. Try not expressing yourself for twenty-four hours and see what happens. You will nearly burst. You will want to write a long letter or draw a picture or sing, or make a dress or a garden.”
—Brenda Ueland (18911985)