Assistant Viceroy
The Letters Patent of 1947 respecting the Office of Governor General provide that, should the Governor General die, become incapacitated, or be absent from the country for a period of more than one month, the Chief Justice or, if that office is vacant, the Senior Puisne Justice, of the Supreme Court would become the Administrator of Canada and exercise all the powers and duties of the Governor General. This has happened twice in the past, with Chief Justices Robert Taschereau and Sir Lyman Poore Duff acting as Governor General for brief periods following the death of a sitting Governor General. In 2005, Chief Justice Beverley McLachlin was Administrator of Canada when then-Governor General, the Right Honourable Adrienne Clarkson, was hospitalized when she had a pacemaker installed.
The Chief Justice and the other Justices of the Court serve as deputies of the Governor General for the purpose of giving Royal Assent to bills passed by parliament, signing official documents or receiving credentials of newly appointed high commissioners and ambassadors.
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