The nomination of a chargé d'affaires a.i. or an acting high commissioner should be made as provided for in Article 19 of the Vienna Convention on Diplomatic Relations.
Where the nomination is made by the HOM, a note verbale to Protocol Branch will suffice.
If the HOM is already absent from Australia and a chargé d'affaires a.i./acting high commissioner has to be either nominated or replaced, the relevant foreign ministry must provide that advice. The ministry’s advice can be sent to Protocol Branch via the mission in Canberra or to the Australian mission in the country concerned.