On Saturday 29 September 2018, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), and Lady Cosgrove, were welcomed to Christmas Island by Her Honour Mrs Natasha Griggs, Administrator of the Australian Indian Ocean Territories, at Christmas Island Airport. There, the Governor-General assisted in the unveiling of the plaque renaming the airport to the Gordon Bennett Airport.

Afterwards, Their Excellencies attended a dinner with community and business leaders at the Administrator’s residence.

On Friday 28 September 2018, at Government House, Canberra, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), presided at a meeting of the Federal Executive Council.

Then, the Governor-General received the interim report of the Royal Commission into Misconduct in the Banking, Superannuation and Financial Services Industry, from the Commissioner, the Honourable Kenneth Hayne AC QC.

Afterwards, the Governor-General received the Ambassador-designate to the Lebanese Republic for a pre-posting call.

On Thursday 27 September 2018, at Government House, Canberra, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), presided at a meeting of the Federal Executive Council.

Afterwards, the Governor-General received Mr Tim Kane, Ambassador-designate to the Federative Republic of Brazil for a pre-posting call.

In the evening, the Governor-General and Lady Cosgrove hosted a reception for the Australian Public Service Secretaries Board, at Admiralty House.

On Wednesday 26 September 2018, at Government House, Canberra, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), met with students from Trinity College, SA; John the Baptist Catholic School, SA; Guildford Grammar School, WA; and Launceston Church Grammar School, TAS, as they undertook a tour of Government House as part of their visit to Canberra.

On Tuesday 25 September 2018, at Government House, Canberra, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), received Major General Mark Kelly AO DSC, Chair, Royal Australian Regiment (RAR) Foundation, and Mr John Walters, Director, RAR Foundation.

Afterwards, the Governor-General received His Excellency Paulo Cunha-Alves, Ambassador, Portuguese Republic. Later, the Governor-General and Lady Cosgrove hosted a reception for the Australian National University’s Tuckwell Scholars.

On Monday 24 September 2018, at Admiralty House, Sydney, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), and Lady Cosgrove, hosted a reception for the World Rugby Executive Committee.

On Friday 21 September 2018, at Larrakeyah Defence Precinct, Darwin, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), and Lady Cosgrove, received a briefing on the Regional Force Surveillance Group (RFSG) and North West Regional Force (NORFORCE), and met with Australian Defence Force personnel, as guests of Colonel John Papalitsas CSC, Commander, and Lieutenant Kate Woodall, Executive Officer, HMAS Coonawarra.

On Thursday 20 September 2018, at Berry Springs Primary School, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), and Lady Cosgrove, as guests of Mrs Carlie Mamo, A/g Principal, met with students and teachers, and were briefed on the efforts of the school to raise awareness of the endangered Atlas moth.

Afterwards, Their Excellencies visited the Territory Wildlife Park, as guests of Ms Shael Martin, Director, were briefed on current conservation projects and viewed the facilities.

On Wednesday 19 September 2018 at Admiralty House, Sydney, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), as Patron, and Lady Cosgrove, hosted a morning tea for Early Childhood Australia.

On Tuesday 18 September 2018 at Government House, Canberra, the Governor-General, His Excellency General the Honourable Sir Peter Cosgrove AK MC (Retd), received from His Excellency Mr Paul Gulleik Larsen, Letters of Credence accrediting him as the Ambassador of the Kingdom of Norway. The Ambassador was accompanied by Ms Beate Gabrielsen (First Secretary), and Ms Turid Hvidsten (First Secretary). The Governor-General and Lady Cosgrove also received Ms Kristina Kraguljac Larsen.