The Assembly is composed of seventy deputies elected by direct universal suffrage every five years by voters in Sicily. Until 2017, the members were 90. From 25 May 1947 to now there were XVII legislatures, initially for a period of four years, while in 1971 five years. For the first time the XIV^ legislature ended prematurely in 2008 due to the resignation of the President of the region, Salvatore Cuffaro.
