"discharge"

in relation to a harmful substance, means any release, howsoever caused, from a ship, a tanker or an offshore installation into a part of the sea which is a prohibited area, and includes any escaping, disposal, spilling, leaking, pumping, emitting or emptying; and "discharge", when used as a verb, has a corresponding meaning;

[Definition substituted by section 27(b) of Act No. 23 of 1997]