Australian Constitution - Section 103 - Commissioners' appointment, tenure, and remuneration

The members of the Inter-State Commission-

(i.) Shall be appointed by the Governor-General in Council:

(ii.) Shall hold office for seven years, but may be removed within that time by the Governor-General in Council, on an address from both Houses of the Parliament in the same session praying for such removal on the ground of proved misbehaviour or incapacity:

(iii.) Shall receive such remuneration as the Parliament may fix; but such remuneration shall not be diminished during their continuance in office.