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Factbox: Italy's new electoral law offers a mix of systems

ROME (Reuters) - Italy’s lower house of parliament on Thursday approved a new electoral law for use in the next national election, due by May 2018. The bill now passes to the upper house for further debate.

Members of the Italian Parliament sit in the Lower House during a vote for electoral law in Rome, Italy, October 12, 2017. REUTERS/Tony Gentile

Here are the main points of the bill.


Italy gives Latin names to its electoral laws. This new proposal is called the Rosatellum, named after Ettore Rosato, the parliamentary party leader of the ruling Democratic Party (PD) who helped draft the legislation.


The bill envisages that some 36 percent of parliamentarians in both the upper and lower houses will be elected on a first-past-the-post basis, with the rest chosen by pure proportional representation via party lists.

Parties can stand alone or as part of broader coalitions. Single parties need to win at least 3 percent of the vote to gain seats, while coalitions need to take 10 percent.

Unlike the previous Italian electoral law, the Rosatellum does not give an automatic majority to any party or group that wins more than 40 percent of the vote. With opinion polls split three ways between the center-right, the center-left and the maverick 5-Star Movement, there is unlikely to be a clearcut winner in the next election.


Voters get two voting slips -- one for the Senate and one for the lower house. They can only put one cross on each slip, with that vote counted for both the first-past-the-post and PR segments. Under previous electoral systems, voters were able to split their vote between individual candidates and the parties.


Candidates can put their name down for the first-past-the-post ballot in one constituency, and also be on five PR lists in locations of their choosing. There will be two to four names on each party PR list. The party leaders will have a major say in whose names go on the lists.


In the lower house, 232 seats will be reserved for first-past-the-post winners, 386 will be reserved for the PR lists, and 12 will be reserved for overseas constituencies. In the Senate, 102 seats will go to first-past-the-post winners, 207 will go to the PR lists, and 6 will be for the overseas vote.


No more than 60 percent of the candidates on any of the lists can be of the same sex.

Reporting by Crispian Balmer; Editing by Hugh Lawson