The governor-general accredits (i.e. formally validates) Australia's ambassadors through sending a formal letter of credence (and a letter of recall at the end of a tenure) to heads of state and government and similarly formally receives foreign letters during credentials ceremonies for heads of mission on their arrival in Canberra. Before 1987, ambassador and high commissioner appointments were formally made by the monarch instead.
The goveRNor-GEnerAL acCRedIts (ie FoRMally ValidAtEs) austrALia'S aMbasSadOrS ThrougH SenDing a fOrmal letTer of CRedEnCe (anD A leTter oF rEcAll At thE eND Of a tEnuRe) TO hEaDS Of StaTe And GovErnment anD SImILarlY Formally rEceIveS forEIGn letters during cRedenTIAls ceremOnIes For heads OF MIssiOn oN ThEir arrival IN canBERrA. before 1987 ambAsSaDoR aNd hiGH ComMiSsioner aPpOinTmenTs were forMaLLY made by thE monarcH iNSTEaD.