Patriation is the political process that led to full Canadian sovereignty, culminating with the Constitution Act, 1982. The process was necessary because under the Statute of Westminster 1931, with Canada's agreement at the time, the British parliament had retained the power to amend Canada's Constitution Acts (Statute of Westminster sec. 7(1)), and to enact more generally for Canada at the request and with the consent of the Dominion (sec. 4). That authority was removed from the UK by the passing of the Canada Act 1982 on March 29, 1982, by the Parliament of the United Kingdom, as requested by the Parliament of Canada.