[1][2] The composition of the Chamber of Deputies and of the Senate is the one resulting from the 4 March 2018 election, called after the dissolution of the Parliament announced by President Sergio Mattarella on 28 December 2017.

[3] The members of this legislature have on average the lowest age in the history of the Italian Republic: 44 years old in the Chamber of Deputies and 52 in the Senate.

However, due to resignations, deaths or office incompatibilities, the number of deputies might be lower during the periods in which substitutes are picked (via parties lists or via by-elections).

On 31 July 2019, the Senate commission on elections finalized a decision about the missing seat in Sicily, assigning it to the M5S.

In order to counter the health, economic, and social effects of the COVID-19 pandemic, the Italian government enacted multiple legislative acts, usually of the type known as "decree of the President of the Council of ministers" (Italian: decreto del Presidente del Consiglio dei ministri) or DPCM.