(1) In this
Part—
"Annex II" means Annex II to the Convention;
"liquid substance" does not include oil;
"mixture" includes ballast water, tank washings and other residues;
"oil" has the same meaning as it has in Part 2.
(2) Except insofar as
the contrary intention appears, an expression that is used in this Part and in
Annex II (whether or not a particular meaning is assigned to it by that Annex)
has, in this Part, the same meaning as in that Annex.