Australia,afederalparliamentarydemocracy,isanindependentself-governingstateandamemberoftheCommonwealthofNations
TheconstitutionofAustralia,whichbecameeffectivein1901,isbasedonBritishparliamentarytraditions,andincludeselementsoftheUnitedStatessystem
TheheadofstateistheBritishsovereign,andtheheadofgovernmentistheAustralianprimeminister,whoisresponsibletotheAustralianParliament
Allpowersnotdelegatedtothefederalgovernmentarereservedtothestates
AustraliaisafoundingmemberoftheUnitedNations(UN)
In1998aconstitutionalconventionvotedtochangeAustralia'sformofgovernmenttoarepublic,withapresidentelectedbyparliamentastheheadofstate
Beforethisdecisiongoesintoeffect,itmustbeapprovedbyareferendum,expectedtobeheldin1999
ExecutiveFormally,executiveauthorityinAustraliaisvestedinthegovernor-general,whoi