been awarded to the mother by court order) Loss of Canadian citizenship generally occurred in the following cases: naturalization outside Canada in the case of a minor, naturalization of a parent service in foreign armed forces naturalized Canadians who lived outside Canada for 10 years and did not file a declaration of retention where a Canadian had acquired that status by descent from a Canadian parent, and who was either not lawfully admitted to Canada for permanent residence on the commencement of the Act or was born outside Canada afterwards, loss of citizenship could occur on the person's 22nd birthday unless the person had filed a declaration of retention between their 21st and 22nd birthday and renounced any previous nationality they possessed. Although Canada restricted dual citizenship between 1947 and 1977, there were some situations where Canadians could nevertheless legally possess another citizenship. For example, migrants becoming Canadian citizens were not asked to formally prove that they had ceased to hold the nationality of their former country. Similarly children born in Canada to non-Canadian parents were not under any obligation to renounce a foreign citizenship they had acquired by descent. Holding a foreign passport did not in itself cause loss of Canadian citizenship. Impact The Canadian Citizenship Act replaced the following phrases throughout all federal legislation: "natural-born British subject" became "natural-born Canadian citizen" "naturalized British subject" became "Canadian citizen other than a natural-born Canadian citizen" "Canadian national" became "Canadian citizen" The Citizenship Act of 1946 did not contain provisions to automatically repatriate Canadian women who had lost their nationality before 1 January 1947. This meant that between two and three thousand women, who married allies of Britain during the Second World War, in Canada or overseas, were still deprived of their original nationality. To recover their nationality, women were required to obtain permanent residency through family sponsorship, meet medical and suitability requirements, and apply to be naturalised after living in Canada for a year. They were also required to take an oath of allegiance if they were approved. The Citizenship Act of 1946 also made no mention of First Nations people. An Act passed later in 1946 amended the Immigration Act, in order to specify that a "Canadian citizen" was one as defined in The Canadian Citizenship Act. These amendments would lead to later jurisprudence that addressed a transition that was problematic in certain cases. Although the 1946 Act did