The Italian Parliament (Italian: Parlamento Italiano) is the national parliament of the Italian Republic. It is a bicameral legislature with 945 elected members (parlamentari). It is composed of the Chamber of Deputies, with 630 members (deputati), and the Senate of the Republic, with 315 members (senatori). Both houses have the same duties and powers, and the Constitution does not make distinctions between them. But, because the President of the Senate stands in the role of Head of State when the President of the Republic needs to be replaced, the Senate is traditionally considered the upper house.