Constitutional amending formula

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The constitutional amending formula is the set of legal rules and procedures that govern how Canada’s Constitution can be formally changed, including the required levels of federal and provincial consent.

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Observed surface forms (1)

Surface form Occurrences
amending formula 1

Statements (48)

Predicate Object
instanceOf constitutional amendment procedure
legal rule
part of the Constitution of Canada
alsoKnownAs Constitutional amending formula
surface form: amending formula

constitutional amending procedures
appliesTo Constitution of Canada
cameIntoForce 1982
component federal unilateral amendment procedure
general amending procedure
provincial unilateral amendment procedure
special arrangements for some but not all provinces
unanimity procedure
country Canada
definedIn Constitution Act, 1982
generalProcedureThreshold approval by the Senate and House of Commons and at least two‑thirds of the provinces representing at least 50 percent of the population of all provinces
governs formal constitutional amendments in Canada
historicalContext Constitutional negotiations of the late 1970s and early 1980s
patriation of the Constitution of Canada
includesSection section 38 of the Constitution Act, 1982
section 41 of the Constitution Act, 1982
section 42 of the Constitution Act, 1982
section 43 of the Constitution Act, 1982
section 44 of the Constitution Act, 1982
section 45 of the Constitution Act, 1982
interpretedBy Supreme Court of Canada
mainSection Constitution Act, 1982
surface form: Part V of the Constitution Act, 1982
notableCase Reference re Senate Reform (2014)
Reference re Supreme Court Act, ss. 5 and 6 (2014)
purpose to govern how Canada’s Constitution can be formally changed
to specify levels of federal and provincial consent required for constitutional amendments
relatedConcept division of powers in Canada
federalism in Canada
replaced British parliamentary authority to amend the British North America Acts
requires participation of Parliament of Canada
participation of provincial legislatures
section41Covers changes to the amending formula itself
composition of the Supreme Court of Canada
office of the Queen, the Governor General and the Lieutenant Governors
the right of a province to a number of members in the House of Commons not less than the number of Senators representing the province
use of the English or the French language in Canada subject to section 43
section42Covers matters subject to the general procedure including the principle of proportionate representation in the House of Commons
number of Senators and their residence qualifications
powers of the Senate and method of selecting Senators
section43Covers amendments in relation to one or more but not all provinces
section44Covers amendments by Parliament in relation to the executive government of Canada or the Senate and House of Commons
section45Covers amendments by provincial legislatures in relation to the constitution of the province
subjectTo constitutional conventions
unanimityProcedureThreshold approval by the Senate and House of Commons and all provincial legislative assemblies

Referenced by (2)

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Constitutional amending formula alsoKnownAs Constitutional amending formula
this entity surface form: amending formula
Constitution Act, 1982 contains Constitutional amending formula