CDL Hours of Service FMCSA Regulations

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

In general, a CMV is a vehicle that is used as part of a business and is involved in interstate commerce and fits any of these descriptions:

• Weighs 10,001 pounds or more
• Has a gross vehicle weight rating or gross combination weight rating of 10,001 pounds or more
• Is designed or used to transport 16 or more passengers (including the driver) not for compensation
• Is designed or used to transport 9 or more passengers (including the driver) for compensation
• Is transporting hazardous materials in a quantity requiring placards

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.

NOTICE: The Consolidated and Further Continuing Appropriations Act of 2015 was enacted on December 16, 2014, suspending enforcement of requirements for use of the 34-hour restart. For more information see FMCSA's Federal Register notice: www.fmcsa.dot.gov/regulations/hours-service/hours-service-drivers

Drivers must take a 30-minute break when they have driven for a period of 8 cumulative hours without at least a 30-minute interruption. The break may be satisfied by any non-driving period of 30 consecutive minutes (i.e., on-duty not driving, off-duty, sleeper berth, or any combination of these taken consecutively).

• 11-Hour Driving Limit May drive a maximum of 11 hours after 10 consecutive hours off duty.
• 14-Hour Limit May not drive beyond the 14th consecutive hour after coming on duty, following 10 consecutive hours off duty. Off-duty time does not extend the 14-hour period.
• Rest Breaks May drive only if 8 hours or less have passed since end of driver's last off-duty or sleeper berth period of at least 30 minutes. Does not apply to drivers using either of the short-haul exceptions in 395.1(e). [49 CFR 397.5 mandatory "in attendance" time may be included in break if no other duties performed]
• 60/70-Hour Limit May not drive after 60/70 hours on duty in 7/8 consecutive days. A driver may restart a 7/8 consecutive day period after taking 34 or more consecutive hours off duty.
• Sleeper Berth Provision Drivers using the sleeper berth provision must take at least 8 consecutive hours in the sleeper berth, plus a separate 2 consecutive hours either in the sleeper berth, off duty, or any combination of the two.

• 10-Hour Driving Limit May drive a maximum of 10 hours after 8 consecutive hours off duty.
• 15-Hour Limit May not drive after having been on duty for 15 hours, following 8 consecutive hours off duty. Off-duty time is not included in the 15-hour period.
• 60/70-Hour Limit May not drive after 60/70 hours on duty in 7/8 consecutive days.
• Sleeper Berth Provision Drivers using a sleeper berth must take at least 8 hours in the sleeper berth, and may split the sleeper berth time into two periods provided neither is less than 2 hours.