(1) The Minister may, by written instrument, appoint a person engaged under the Public Service Act 1999 to act as the Registrar:
(a) during a vacancy in the office of Registrar (whether or not an appointment has previously been made to the office); or
(b) during any period, or during all periods, when the Registrar:
(i) is absent from duty or from Australia; or
(ii) is, for any reason, unable to perform the duties of the office.
(2) Anything done by, or in relation to, a person purporting to act under an appointment is not invalid merely because:
(a) the occasion for the appointment had not arisen; or
(b) there was a defect or irregularity in connection with the appointment; or
(c) the appointment had ceased to have effect; or
(d) the occasion to act had not arisen or had ceased.
Note: For general provisions about appointments, see also sections 20 and 33A of the Acts Interpretation Act 1901 .