9 To prevent, minimize and ultimately eliminate
the transfer of harmful aquatic organisms and pathogens to the maximum
extent practicable taking into account the nature of the ship Ballast
Water should either be exchanged prior to discharge in accordance
with Regulation B-4 or otherwise
managed in accordance with the requirements of the Administration.
Any chemical treatment shall only use Active Substances approved by
the Organization pursuant to Regulation
D-3 of the Convention.