| June 12, 2007 | Cabinet Approval |
|---|---|
| June 12, 2007 | Establishment of the Liaison Council for the Hokkaido Toyako Summit (Cabinet) |
| June 12, 2007 | Establishment of the Liaison Meeting for the Hokkaido Toyako Summit (Ministry of Foreign Affairs) |
| June 18, 2007 | Establishment of Hokkaido Toyako Summit Preparation Council (Hokkaido Prefecture) |
| July 1, 2007 | Establishment of Secretariat for the G8 Summit in Ministry of Foreign Affairs |
| July 5, 2007 | First Liaison Council for the Hokkaido Toyako Summit (Cabinet) |
| July 10, 2007 | First Liaison Meeting for the Hokkaido Toyako Summit (Ministry of Foreign Affairs) |
| August 31, 2007 | Second Liaison Council for the Hokkaido Toyako Summit (Cabinet) |