In this part—
"Annex II" ...
"discharge offence" means an offence against section 35 (1) .
"mixture" includes ballast water, tank washings and bilge and other residues.
"noxious liquid substance" —
(a) includes a mixture containing a noxious liquid substance; and
(b) does not include a liquid substance declared under a regulation not to be a noxious liquid substance.