When the “16-hour exception” is used, may sleeper-berth periods or extended off-duty periods be included in the “duty tour”? How does this affect team drivers?

The 395.1(o) exception for property-carrying drivers is for drivers who return to the normal work reporting location and are released from duty at the end of each of the previous 5 duty tours. The use of 10 consecutive hours off duty or the equivalent (sleeper berth, off duty, or any allowable combination thereof) before returning to the work reporting location would interrupt the duty tour, and the driver would not be eligible to use the 16-hour exception that day or again until after 5 or more duty tours when the driver did return to the work reporting location.