In general, everyone born in Canada from 1947 or later acquires Canadian citizenship at birth. In one 2008 case, a girl born to a Ugandan mother aboard a Northwest Airlines flight from Amsterdam to Boston was deemed a Canadian citizen for customs' purposes because she was born over Canada's airspace.
The only exceptions concern children born to diplomats, where additional requirements apply.
Section 3(2) of the current act states that Canadian citizenship is not granted to a child born in Canada if either parent was a diplomatic or consular officer or other representative at the time of birth and neither parent was a Canadian citizen or Canadian permanent resident.
However, should the immigration status of the parents of such persons change to permanent resident, a child may be granted citizenship immediately, or when the parents acquire citizenship through naturalization, at the discretion of Citizenship and Immigration Canada.
In 2012, Citizenship and Immigration Minister Jason Kenney proposed to modify the jus soli birthright citizenship recognised in Canadian law as a means of discouraging birth tourism, most likely by requiring at least one of the parents be resident in Canada.