 Voting for the Assembly was on the basis of universal suffrage, which comprised all nationals over eighteen, registered in the Community of Madrid and in full enjoyment of their political rights.All members of the Assembly of Madrid were elected using the D'Hondt method and a closed list proportional representation, with a threshold of 5 percent of valid votes—which included blank ballots—being applied regionally.Parties not reaching the threshold were not taken into consideration for seat distribution.