On Tuesday 29 September 2026, Her Excellency the Honourable Ms Sam Mostyn AC, received Letters of Credence, accrediting Her Excellency Ms Mateja Štrumelj Piškur as the Ambassador of Slovenia.

Then, the Governor-General received Letters of Credence, accrediting His Excellency Mr Mark Lawrence Meredith as the Ambassador of the European Union. 

Afterwards, the Governor-General, met with students and teachers from Kennedy Baptist College, Murdoch, Western Australia, as they undertook a tour of Government House, Canberra. 

Later, the Governor-General received Letters of Credence, accrediting His Excellency Mr Stojanche Kitanoski as the Ambassador of North Macedonia. 

Then, the Governor-General received Letters of Credence, accrediting His Excellency Dr David Brat as the Ambassador of the United States of America. 

In the afternoon, the Governor-General hosted a lunch for newly accredited Heads of Mission at Government House, Canberra.

Then, the Governor-General, as guest of Acting Commissioner Ian McCartney APM, Australian Federal Police, attended The National Police Remembrance Service at the National Police Memorial in Parkes, Canberra.

Afterwards, the Governor-General, as guest Mr Scott Weber APM, Chief Executive Officer, Police Federation of Australia, attended the National Police Memorial 20th Anniversary reception at the Australian War Memorial, Canberra.