Drivers may split on-duty time by using split breaks. To fulfill the requirements of the split break, driver must have:

• One period equal at least 8 hours or more in the sleeper berth.
• A separate period of a minimum of 2 or more hours which may be off-duty, sleeper berth or a combination of the two.

Example

Break #1: 2 Hours (Off-Duty)
Drive #1: 4 hours
Break #2: 8 Hours (Sleeper)
Drive #2: Driver would find his two periods that satisfy the split break requirements. In this example, this would be the 2 hours off-duty and the 8 hours in the sleeper. Driver would start calculating at the end of the 1st rest period off the 14.

Driver would take the 4 hours of driving between the breaks:
• 11 hr rule: 11 - 4 = 7 hours available on the 11-hour rule.
• 14 hr rule: 14 - 4 = 10 hours available on the 14-hour rule.

The lapsed time in the period immediately before and after each period when added together does not include any driving after the 14th hour. Unloading, fueling etc. will still be allowed after the 14th hour (driver must have an uninterrupted 10-hour break before driving again).

The only way to stop the 14-hour clock now is an 8-hour sleeper berth break.