The current system is defined by the 1988 Constitution and the Electoral Code [pt] (Law No.
In order to ensure that this majority is obtained in a multi-party system, the election is held in two rounds.
When only one candidate must be chosen, a relative majority of votes is used with separate elections for each state.
[9][12] In elections for the Chamber of Deputies and for state and municipal legislative bodies, the Constitution provides for the use of a proportional system.
In addition to these restrictions, the Constitution also imposes a minimum limit of 8 and a maximum of 70 deputies for each state, defined in proportion to the population of each one.