At Thursday afternoon, the British will reveal whether the Colombian will vote to maintain current voting system or to experiment with proportional representation.
The fall of the referendum will be announced on Thursday at 2:30 pm. PT.
All bills will be issued on December 7 with the last date for receipt of mail-in referrals.
Woulders asked whether they would like to retain the existing set-up system, or go to one of three types of proportional representation.
According to the poll, 41 per cent of voters are giving back their ballots. A simple majority can change the voting system in the provincial election.