Electoral system family

Article 149 (Constituencies)

1. Members of the Assembly of the Republic are elected for constituencies that shall be geographically defined by law. The law may order the creation of plurinominal and uninominal constituencies and lay down the nature and complementary thereof, in such a way as to ensure that votes are converted into numbers of seats in accordance with the proportional representation system and using d’Hondt’s highest average rule.

2. With the exception of the national constituency when one exists, the number of Members of the Assembly of the Republic for each plurinominal constituency in Portuguese territory shall be proportional to the number of citizens registered to vote therein.