According to the Federal Motor Carrier Safety Administration (FMCSA):

Federal safety regulations limit the number of hours commercial drivers can be on-duty and still drive, as well as the number of hours spent driving. These limitations are designed to prevent truck and bus drivers from becoming fatigued while driving, and require that drivers take a work break and have a sufficient off-duty rest period before returning to on-duty status.

Most drivers must follow the HOS Regulations if they drive a commercial motor vehicle, or CMV.

Commercial motor vehicle means any self-propelled or towed motor vehicle used on a highway in interstate commerce to transport passengers or property when the vehicle —

  1. Has a gross vehicle weight rating or gross combination weight rating, or gross vehicle weight or gross combination weight, of 4,536 kg (10,001 pounds) or more, whichever is greater; or
  2. Is designed or used to transport more than 8 passengers (including the driver) for compensation; or
  3. Is designed or used to transport more than 15 passengers, including the driver, and is not used to transport passengers for compensation; or
  4. Is used in transporting material found by the Secretary of Transportation to be hazardous under 49 U.S.C. 5103 and transported in a quantity requiring placarding under regulations prescribed by the Secretary under 49 CFR, subtitle B, chapter I, subchapter C.
Hours of Service Final Rule for Truck Drivers

The Hours of Service of Drivers Final Rule was published in the Federal Register on December 27, 2011. The effective date of the Final Rule was February 27, 2012, and the compliance date of remaining provisions was July 1, 2013.

Click here to read the article in its entirety.


Have more questions? Regulations can and do change regularly. Click here to visit the Federal Motor Carrier Safety Administration website.