(1)  A statement in an arrangement –

(a) that specified waters are waters relevant to the State which is a party to the arrangement with the Commonwealth is evidence of that fact; and

(b) that specified waters are waters relevant to the States that are parties to the arrangement or are waters adjacent to a specified State or States is evidence of that fact.

(2)  A certificate signed by a member of a Joint Authority stating any matter relating to a delegation by the Joint Authority is evidence of that matter.

(3)  A record of a decision of a Joint Authority signed by the Commonwealth Minister or a deputy who took part in, or made, the decision is evidence that the decision, as recorded, was duly made.

(4)  In any proceedings under this or any other Act, production of an identity card issued, or instrument of appointment made, under Part 8 is evidence of any fact appearing in it.