<P> Through section 2 of the Canada Act 1982, the United Kingdom ended its involvement with further amendments to the Canadian constitution . The procedure for amending the Constitution Act, 1982 must comply with its Part V, instead of the usual parliamentary procedure requiring the monarch's Royal Assent for enacting legislation . </P> <P> While the Canada Act 1982 received royal assent on March 29, 1982 in London, it was not until the Queen visited Canada the following month that the Constitution Act, 1982, its Canadian equivalent, was proclaimed by letters patent as a statutory instrument by the Queen during her presence in Canada . </P> <P> Canada's Constitution Act, 1982 was signed into law by Elizabeth II as Queen of Canada on April 17, 1982 on Parliament Hill in Ottawa . Queen Elizabeth's constitutional powers over Canada were not affected by the Act, and she remains Queen and Head of State of Canada . Canada has complete sovereignty as an independent country, however, and the Queen's role as monarch of Canada is separate from her role as the British monarch or the monarch of any of the other Commonwealth realms . </P>

When did canada become a completely independent country