How is the national electoral register created?
Canada
Answer
Some combination of both (see comments)
Source
Canada, Elections Act (S.C. 2000, c. 9) last amended on 2019-06-13, accessed 23 October 2019
See also: Canada, Elections Canada, Description of the National Register of Electors, accessed 23 October 2019
Comment
Elections Canada obtains voters' information from various state agencies and also conducts online voter registration itself.