Summary of HOS Rules

The table below summarizes the U.S. government’s Hours of Service regulations that have been incorporated into PC*MILER’s HOS functionality:


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.

30-Minute Driving Break

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).

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 may split their required 10-hour off-duty period, as long as one off-duty period (whether in or out of the sleeper berth) is at least 2 hours long and the other involves at least 7 consecutive hours spent in the sleeper berth. All sleeper berth pairings MUST add up to at least 10 hours. When used together, neither time period counts against the maximum 14- hour driving window.

Adverse Driving Conditions

Drivers are allowed to extend the 11-hour maximum driving limit and 14-hour driving window by up to 2 hours when adverse driving conditions are encountered.

Short-Haul Exception

A driver is exempt from the requirements of §395.8 and §395.11 if: the driver operates within a 150 air-mile radius of the normal work reporting location, and the driver does not exceed a maximum duty period of 14 hours. Drivers using the short-haul exception in §395.1(e)(1) must report and return to the normal work reporting location within 14 consecutive hours, and stay within a 150 air-mile radius of the work reporting location.

Source: Federal Motor Carrier Safety Administration

When using the HOS Manager, please note the following:

  • PC*MILER may select and insert rest stops that occur along a route up to one hour before the HOS requirement would go into effect, to avoid violations due to traffic or another unforeseen event.  For example, if a driver is scheduled for a stop at 3:00, PC*MILER would in most cases favor a stop at 2:10 versus one estimated to occur at 2:50. 
  • Remember, the hours that PC*MILER returns for a trip are estimates that may not reflect a variety of factors that can influence driving times.  When you are manually inserting an HOS stop (either editing a stop returned by the HOS Manager, or inserting a stop into a route without using the Manager), the drive time that appears on the pick list when “HOS Stop” is selected from the stop type list in the route window may vary slightly from the time calculated when the trip was run.
  • When changing an HOS rest stop, all POIs other than rest stops will be temporarily disabled – i.e. they won’t be visible on the map in the areas surrounding the route.
  • If all stops on a route are outside the United States, the HOS Manager will be disabled.
  • If you delete an HOS stop, PC*MILER will rerun the route and insert the original stop recommendations.  To delete all HOS stops, uncheck Insert HOS Driver Breaks in the HOS Manager.
  • When a route is saved that includes rest stops inserted by the HOS Manager, the rest stops will be saved but any custom settings in the Manager under Available Driving Hours and Available Duty Hours won’t be saved along with the route.  In other words, when the saved route is open, the HOS stops will be there but if you open the HOS Manager you’ll see the default available hours (8, 11 and 14 hours).