Quorum requirements for a referendum to be valid
Portugal
Answer
- Mandatory referendum - turnout quorum
- Optional referendum - turnout quorum
Source
Constitution (7th revision, 2005)
Article 115 (Referenda)
11. Referenda only have binding effect when the number of voters exceeds half the number of registered electors.
Legal Regime governing Referenda (Law no. 15-A/98 of 3 April 1998, last amended by Organic Law no. 3/2017 of 18 July 2017)
Article 240. Binding efficacy
Referenda only have binding effect when the number of voters exceeds half the number of electors registered on the electoral roll.
Comment
The result of the referendum is binding only if more than half (50%) of registered electors vote. This applies to both mandatory and optional referenda.
