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Australia

Commonwealth of Australia

Common lawFederal parliamentary constitutional monarchyReviewed· 2026-06-14
Capital
Canberra
Population
26,800,000
Languages
English
Currency
AUD

Australia · Constitution

Commonwealth of Australia Constitution Act

A federal compact that enumerates Commonwealth powers and leaves the residue with the states. Amendment requires a referendum carried by a national majority and a majority in four of six states — only eight of forty-five proposals have succeeded.

The constitutional text

A federal compact that enumerates Commonwealth powers and leaves the residue with the states. Amendment requires a referendum carried by a national majority and a majority in four of six states — only eight of forty-five proposals have succeeded.

Separation of powers

Chapter III strictly separates federal judicial power; the High Court polices the boundary and may invalidate legislation for exceeding it.

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