7.2.2.1 Vector chart information may be displayed
on a radar presentation. This should be accomplished using layers
selected from the chart database. As a minimum, the elements of the
ECDIS Standard Display should be available for individual selection
by category or layer, but not as individual objects. As far as practical,
chart information should be presented in accordance with the ECDIS
performance standards and with these presentation standards.
7.2.2.2 If chart information is displayed within
the operational display area, the display of radar information should
have priority. The chart information should be clearly perceptible
as such. The chart information should not substantially degrade, mask
or obscure the radar video, tracked radar targets and AIS targets.
7.2.2.3 When chart information is displayed, there
should be a permanent indication of its status. Source and update
information should also be made available.