politics and government of
|1812||Adoption of a provisional political constitution||Approve|
|1818||Adoption of a provisional political constitution||Approve|
|1925||Adoption of a new political constitution||45.4%||94.8%||4.1%||1.2%||Approve|
|1978||Legitimacy of Gen. Augusto Pinochet's dictatorship||a||78.6%||21.4%||4.6%||Approve|
|1980||Adoption of a new political constitution||a||69.0%||31.0%||2.8%||1.3%||Approve|
|1988||Continuance of Pinochet's rule||97.5%||44.0%||56.0%||1.3%||1.0%||Reject|
|2020||On whether the constitution should be replaced and how||Scheduled to take place on 25 October 2020.|
a There was no electoral roll for this referendum.
Note: The percentages used in the "Yes", "No" and "Neither" columns are over the total of valid votes in each referendum. The percentages used in the "Null" and "Blank" columns are over the total votes cast in each referendum.
The current 1980 constitution provides for binding referendums only in the case a constitutional reform passed by Congress is completely vetoed by the President and then re-approved by Congress by a two-thirds majority of each chamber. In such occurrence the President has the authority to either sign the reform into law or call for a referendum. To date, the President has not exercised such power.