Immigration, Refugees and Citizenship Canada (IRCC) is the federal department that manages Canadian citizenship, both for those applying for citizenship and for current Canadian citizens.
Since 2010, Canada has welcomed an average of more than 260,000 permanent residents each year. Many of these newcomers are in the process of becoming Canadian citizens, and many more will apply for Canadian citizenship in the future. When that process is complete, they take loyalty oaths pledging their commitment to the responsibilities and privileges of Canadian citizenship.
A Canadian immigrant may apply for Canadian Citizenship after spending at least three years in Canada as a permanent resident.
Once you are approved as a Canadian citizen, you can attend a Citizenship Ceremony to take Canada's Oath of Citizenship.
If you were born outside Canada and one of your parents is a Canadian citizen or if you are a Canadian with children born in another country, you may have the option of obtaining Canadian citizenship for yourself or your children. All you have to do is apply for proof of citizenship, also known as a Canadian citizenship certificate.
Canada recognizes dual citizenship. You are not required by Canada to give up your previous citizenship once you become a Canadian citizen.