2.1 The requirements of the Convention relating
to approval of ballast water management systems used by ships are
set out in regulation D-3.
2.2 Regulation D-2 stipulates that ships meeting
the requirements of the Convention by meeting the ballast water performance
standard must discharge:
-
.1 less than 10 viable organisms per cubic metre
greater than or equal to 50 micrometres in minimum dimension;
-
.2 less than 10 viable organisms per millilitre
less than 50 micrometres in minimum dimension and greater than or
equal to 10 micrometres in minimum dimension; and
-
.3 less than the following concentrations of indicator
microbes, as a human health standard:
-
.1 Toxicogenic Vibrio cholerae (serotypes
O1 and O139) with less than 1 Colony Forming Unit (cfu) per 100 millilitres
or less than 1 cfu per 1 gramme (wet weight) of zooplankton samples;
-
.2
Escherichia coli less than 250
cfu per 100 millilitres; and
-
.3 Intestinal Enterococci less than
100 cfu per 100 millilitres.