301-10.125—When may I use the 14-hour rule to travel other than coach-class (see § 301-10.123(b)(6))?
(2)
The scheduled flight time, including non-overnight stopovers and change of planes, is in excess of 14 hours; and
(b)
Scheduled flight time is the flight time between the originating departure point and the ultimate arrival point including scheduled non-overnight time spent at airports during plane changes. Scheduled non-overnight time does not include time spent at the originating or ultimate arrival airports.
(c)
If other than coach-class accommodation is authorized based on the 14-hour rule then you will not be eligible for a rest stop en route or a rest period upon arrival at your duty site, in accordance with internal agency procedures pursuant to § 301-70.102(j).