Furuno FEA-2107-BB Operator's Manual page 143

8. Vector Chart Material
An example of changes known to happen in the future
Display/Approve date is set
to 2005-01-02.
You can see a box-shaped Caution
area on the screen.
Display date is now set to 2005-09-08
and Approve date is 2005-9-09.
You can see a new area (Restricted
Area) inserted into existing area
(Caution Area).
Display/Approve data is set
to 2005-09-08.
You see only a Restricted Area
without any Caution Area.
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