On Monday, September 17, 2018, the Chief Electoral Officer of Canada, Stéphane Perrault, received official notice from the Speaker of the House of Commons that the seat for Burnaby South (British Columbia) is vacant. A by-election will take place to fill the vacant seat.
The date of the by-election must be announced between September 28, 2018, and March 18, 2019. This announcement signals the start of the by-election period.