11.1 The use of the designated ballast water exchange
area and any impacts on the aquatic environment, human health, property
or resources of the port State or those of other States should be
monitored and reviewed on a regular basis.
11.2 One reason for monitoring may be to document
the occurrence of harmful aquatic organisms in such areas which may
be introduced by ballast water exchange. In case harmful aquatic organisms
are found to be introduced, the designated ballast water exchange
area may be closed to avoid promoting the spread of such newly occurring
species to other regions.