Statute of Westminster 1931

E4828

The Statute of Westminster 1931 is a landmark British law that granted full legislative independence to the self-governing Dominions of the British Empire, laying the constitutional foundation for the modern Commonwealth realms and redefining the role of the British monarch within them.


Statements (50)
Predicate Object
instanceOf Act of Parliament of the United Kingdom
constitutional statute
appliesTo Commonwealth of Australia
Dominion of Canada
Dominion of New Zealand
Irish Free State
Newfoundland
Union of South Africa
basedOn Balfour Declaration of 1926
citation 22 Geo. 5 c. 4
commencementInAustralia 1942-10-09
commencementInCanada 1931-12-11
commencementInIrishFreeState 1931-12-11
commencementInNewfoundland 1931-12-11
commencementInNewZealand 1947-11-25
commencementInSouthAfrica 1931-12-11
contains Preamble affirming equality of status of the Dominions and the United Kingdom
Section 10 providing for commencement in each Dominion
Section 2 removing repugnancy to UK law as a ground of invalidity for Dominion laws
Section 3 granting Dominion parliaments full power to make extraterritorial laws
Section 4 restricting UK legislation for Dominions to cases with Dominion request and consent
Section 7 concerning succession to the Crown and Royal Style and Titles
country United Kingdom
dateEnacted 1931-12-11
dateOfRoyalAssent 1931-12-11
effect ended British Parliament’s power to legislate for Dominions without their consent
established that Dominion laws could not be invalidated for repugnancy to UK law
laid constitutional foundations of the modern Commonwealth realms
recognized the Dominions as autonomous communities within the British Empire
redefined the role of the British monarch in the Dominions
follows Imperial Conference of 1926
Imperial Conference of 1930
grants full legislative autonomy to the Dominions
legislative equality between the Dominions and the United Kingdom
historicalSignificance key step in the constitutional evolution from British Empire to Commonwealth of Nations
introducedBy James Henry Thomas
legalStatusInAustralia in force
legalStatusInCanada in force
legalStatusInIrishFreeState superseded
legalStatusInNewZealand in force
legalStatusInSouthAfrica repealed
legalStatusInUK partly in force
legislativeBody House of Commons of the United Kingdom
House of Lords
longTitle An Act to give effect to certain resolutions passed by Imperial Conferences held in the years 1926 and 1930
parliament Parliament of the United Kingdom
relatedTo Australia Act 1986
Canada Act 1982
New Zealand Constitution Amendment Act 1947
shortTitle Statute of Westminster 1931


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