Safety
(1) The condition in this subsection is met in relation to a discharge of ballast water from a vessel if the discharge is necessary for the purpose of:
(a) ensuring the safety of the vessel in an emergency; or
(b) saving life at sea.
Accidents
(2) The condition in this subsection is met in relation to a discharge of ballast water from a vessel if:
(a) the discharge is accidental and results from damage to the vessel or its equipment; and
(b) all reasonable precautions to prevent or minimise the discharge are taken at the following times:
(i) before and after the occurrence of the damage;
(ii) before and after the discovery of the damage;
(iii) before and after the discovery of the discharge; and
(c) none of the following intentionally caused the damage, or was reckless as to the occurrence of the damage:
(i) the person in charge of the vessel;
(iii) the operator of the vessel.
Avoiding or minimising pollution
(3) The condition in this subsection is met in relation to a discharge of ballast water from a vessel if the discharge is for the purpose of avoiding or minimising pollution from the vessel.