It is responsible for the political action, regulation, and administration of the government of the autonomous region.

Ministers, who chair their respective departments, need not be deputies in the parliament, as they have an automatic right to intervene in parliamentary debates.

Decisions and resolutions are adopted by simple majority, and in case of tie, the vote cast by the President is tie-breaking.

[3] The Parliament of Catalonia unilaterally issued a declaration of independence from Spain on 27 October 2017 in favour of a Catalan Republic.

In response Spanish Prime Minister Mariano Rajoy dissolved the Parliament of Catalonia and called a snap regional election for 21 December 2017.