To remain current as an aircraft dispatch

within the preceding 12 calendar months, spend 2.5hours observing flight deck operations, pous two additional takeoff and landings, in one of the types of airplanes in each group he/she is to dispatching.

Within the preceding 12 calendar months, spend at least 5 hours observing flight deck operations, plus two additional takeoff and landings, in one of the types of airplanes in each group be/she is to dispatch.

Within the preceding 12 calendar months, spend at least 5 hours observing flight deck operations in each type of airplane, in each group that he/she is to dispatch.