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Historical Values
Year Value
1990 9 July 1900, effective 1 January 1901
1991 9 July 1900, effective 1 January 1901
1992 9 July 1900, effective 1 January 1901
1993 9 July 1900, effective 1 January 1901
1994 9 July 1900, effective 1 January 1901
1995 9 July 1900, effective 1 January 1901
1996 9 July 1900, effective 1 January 1901
1997 9 July 1900, effective 1 January 1901
1998 9 July 1900, effective 1 January 1901
1999 9 July 1900, effective 1 January 1901
2000 9 July 1900, effective 1 January 1901
2001 9 July 1900, effective 1 January 1901
2002 9 July 1900, effective 1 January 1901
2003 9 July 1900, effective 1 January 1901
2004 9 July 1900, effective 1 January 1901
2005 9 July 1900, effective 1 January 1901
2006 9 July 1900, effective 1 January 1901
2007 9 July 1900, effective 1 January 1901
2008 9 July 1900, effective 1 January 1901
2009 9 July 1900; effective 1 January 1901
2010 9 July 1900; effective on 1 January 1901
2011 9 July 1900; effective 1 January 1901
2012 9 July 1900; effective 1 January 1901
2013 9 July 1900; effective 1 January 1901; amended several times, last in 1977; note - a referendum to amend the constitution to reflect the Aboriginal and Torres Strait Islander Peoples Recognition Act 2013 is to be completed by the end of 2014 (2013)
2014 9 July 1900; effective 1 January 1901; amended several times, last in 1977; note - a referendum to amend the constitution to reflect the Aboriginal and Torres Strait Islander Peoples Recognition Act 2013 is to be completed by the end of 2014 (2013)
2015 9 July 1900; effective 1 January 1901; amended several times, last in 1977; note - a referendum to amend the constitution to reflect the Aboriginal and Torres Strait Islander Peoples Recognition Act 2013 has been extended to March 2018 by a 2015 bill (2013)
2016 9 July 1900; effective 1 January 1901; amended several times, last in 1977; note - a referendum to amend the constitution to reflect the Aboriginal and Torres Strait Islander Peoples Recognition Act 2013 is planned for early 2017 (2016)
2017 9 July 1900; effective 1 January 1901; amended several times, last in 1977; note - a referendum to amend the constitution to reflect the Aboriginal and Torres Strait Islander Peoples Recognition Act 2013 held in 2017 was rejected (2017)
2018 history: approved in a series of referenda 1898 through 1900, became law 9 July 1900, effective 1 January 1901 (2017) | amendments: proposed by Parliament; passage requires approval of a referendum bill by absolute majority vote in both houses of Parliament, approval in a referendum by a majority of voters in at least four states and in the territories, and Royal Assent; proposals that would reduce a state’s representation in either house or change a state’s boundaries require that state’s appro
2019 history: approved in a series of referenda from 1898 through 1900 and became law 9 July 1900, effective 1 January 1901 | amendments: proposed by Parliament; passage requires approval of a referendum bill by absolute majority vote in both houses of Parliament, approval in a referendum by a majority of voters in at least four states and in the territories, and Royal Assent; proposals that would reduce a state’s representation in either house or change a state’s boundaries require that state’s appr
2020 history: approved in a series of referenda from 1898 through 1900 and became law 9 July 1900, effective 1 January 1901 | amendments: proposed by Parliament; passage requires approval of a referendum bill by absolute majority vote in both houses of Parliament, approval in a referendum by a majority of voters in at least four states and in the territories, and Royal Assent; proposals that would reduce a state’s representation in either house or change a state’s boundaries require that state’s appr
2021 history: approved in a series of referenda from 1898 through 1900 and became law 9 July 1900, effective 1 January 1901 amendments: proposed by Parliament; passage requires approval of a referendum bill by absolute majority vote in both houses of Parliament, approval in a referendum by a majority of voters in at least four states and in the territories, and Royal Assent; proposals that would reduce a state s representation in either house or change a state s boundaries require that state s approv
2022 history: approved in a series of referenda from 1898 through 1900 and became law 9 July 1900, effective 1 January 1901 amendments: proposed by Parliament; passage requires approval of a referendum bill by absolute majority vote in both houses of Parliament, approval in a referendum by a majority of voters in at least four states and in the territories, and Royal Assent; proposals that would reduce a state s representation in either house or change a state s boundaries require that state s approv
2023 history: approved in a series of referenda from 1898 through 1900 and became law 9 July 1900, effective 1 January 1901 amendments: proposed by Parliament; passage requires approval of a referendum bill by absolute majority vote in both houses of Parliament, approval in a referendum by a majority of voters in at least four states and in the territories, and Royal Assent; proposals that would reduce a state s representation in either house or change a state s boundaries require that state s approv
2024 history: approved in a series of referenda from 1898 through 1900 and became law 9 July 1900, effective 1 January 1901 amendments: proposed by Parliament; passage requires approval of a referendum bill by absolute majority vote in both houses of Parliament, approval in a referendum by a majority of voters in at least four states and in the territories, and Royal Assent; proposals that would reduce a state s representation in either house or change a state s boundaries require that state s approv
2025 history: approved in a series of referenda from 1898 through 1900 and became law 9 July 1900, effective 1 January 1901 amendment process: proposed by Parliament; passage requires approval of a referendum bill by absolute majority vote in both houses of Parliament, approval in a referendum by a majority of voters in at least four states and in the territories, and Royal Assent; proposals that would reduce a state s representation in either house or change a state s boundaries require that state s