Next in rank is the Governor-General, who is the Queen's representative. His flag is flown at residence and office and when on official functions. Similarly, there is the standard of the Lt. Governor, whose flag has highest rank in each Province. The rules governing the display of the Governor-General's flag apply here as well. The order of next rank is the Canadian flag itself.
Heads of state visiting Canada have the standard of their office displayed next.
Then comes flags of other nations, followed by Provincial flags according to their entry into the confederation. The Royal Union Flag or Union Jack is only designated to be displayed on Victoria Day, the anniversary of the Statute of Westminster and on Commonwealth Day. If there is only one flag pole, precedence is given the Canadian flag and the Union Jack display is omitted. Also of note in the protocol is the dual status of the Union Jack. When representing the United Kingdom, it is considered an international flag and therefore displayed with flags of other nations.