Australia, national Obligatory referendum [LOR] - Mode of altering the Constitution (1)

General Typology

Obligatory referendum [LOR]
Political level
Local Name:
Mode of altering the Constitution (1)
Normative Level:
Legally Binding:
Legally Defined:

Mode of altering the Constitution.
128. This Constitution shall not be altered except in the following manner:
The proposed law for the alteration thereof must be passed by an absolute majority of each House of the Parliament, and not less than two nor more than six months after its passage through both Houses the proposed law shall be submitted in each State and Territory to the electors qualified to vote for the election of members of the House of Representatives.
When a proposed law is submitted to the electors the vote shall be taken in such manner as the Parliament prescribes. But until the qualification of electors of members of the House of Representatives becomes uniform throughout the Commonwealth, only one-half the electors voting for and against the proposed law shall be counted in any State in which adult suffrage prevails.
And if in a majority of the States a majority of the electors voting approve the proposed law, and if a majority of all the electors voting also approve the proposed law, it shall be presented to the Governor-General for the Queen's assent.

References: Constitution of Australia, 1985 (Accessed 22.01.2020)

Subject Matter:

To amend the constitution (1 of 3)


Parliament : Both chambers of the House of Parliament voted by an absolute majority
Decision maker:


Available Time:
Turnout Quorum:
Legal source does not mention turnout quorum
Approval Quorum:
Majority of electors
Geographical Quorum:
Majority of electors in a majority of the states
Excluded Issues:
Other Formal Requirements:

Voting is compulsory

Procedural Elements

Wording Of Ballot Question:
Interaction With Authorities:
Supervision And Support:
Transparency And Finance: