(1)  A Joint Authority, by instrument in writing, may delegate to a person any of its powers or functions under this Act, other than this power of delegation.

(2)  A delegation may be to a person holding or performing the functions of –

(a) a specified office; or

(b) an office in the service of an authority of, or under the law of, the Commonwealth, another State or a Territory of the Commonwealth.

(3)  A delegate, in the exercise of any delegated powers or functions, is subject to the directions of the Joint Authority.

(4)  A delegation continues despite any change in the membership of the Joint Authority.