comdtinst m16114.32c - U.S. Coast Guard

Part 3 – Station Operations
Chapter 1 – Station Organization and Watch-Standing
G.2. One-in-
Three (1-in-3)
Week One
M Tu W Th F Sa Su
Duty 1 2 3 1 2 3 1
Day work 3 1,3 1,2 2,3 3
OFF 2 1 1,2 2,3
Week Two
M Tu W T h F Sa Su
Duty 2 3 1 2 3 1 2
Day work 1 1,2 2,3 1,3 1
OFF 3 2 2,3 1,3
Week Three
M Tu W Th F Sa Su
Duty 3 1 2 3 1 2 3
Day work 2 2,3 1,3 1,2 2
OFF 1 3 1,3 1,2
Table 3-2
One-in-Three Rotation
G.2.a. Advantages The 1-in-3 duty rotation provides for an average of 77 work hours (i.e. 56
duty hours and 21 day work hours) and 91 hours of liberty each week,
and provides the following advantages:
(01) The potential for duty crews exceeding fatigue standards is
minimized.
(02) Unproductive work time (i.e. for messing and berthing) is
minimized.
(03) Station personnel can accomplish training and maintenance tasks
while they are in a non-duty status.
(04) The personal needs of the crew (e.g. to take care of family needs)
can be easily accommodated during normal working hours.
The straight 1-in-3 duty rotation (i.e. no sliding weekends) does not
allow for 3 day weekends unless the member takes leave; duty standers
can expect to have duty on at least 2 weekends every month.
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