The McGarvie model is a proposition for change to the Australian Constitution to remove references to the monarchy and establish a republic.
The Constitutional Council would be bound to act in accordance with the Prime Minister's advice by a convention backed by the penalty of public dismissal for breach.
The three members of the Constitutional Council, who can act by majority, are determined automatically by constitutional formula, with places going first to former Governors-General (with priority to the most recently retired), and excess places going (on the same basis) in turn to former state governors, lieutenant-governors (or equivalent), judges of the High Court or judges of the Federal Court.
Supporters of the model claim that, although described as "no-risk but uninspiring" and occasionally as "elitist", it has the considerable advantage of being developed by one with experience as a governor and hence a working knowledge of how the system of governorship actually functions in Australia.
They claim it is straightforward, easily implemented, demonstrates twin requirements of practicality and principle, and keeps the separation of powers intact.