Found this little gem while studying for my type ride....

(b) Except in cases where circumstances or emergency conditions beyond the control of the certificate holder require otherwise --

(1) No certificate holder conducting domestic or flag operations may schedule a dispatcher for more than 10 consecutive hours of duty;

Say what?!?!? You can only sit on front of a computer for 10 hours but I can fly 70 people around for 16 hours?GMAFB