A constitutional law, in the Italian legal system, is an Act of Parliament that has the same strength as the Constitution of Italy. This means that in case of conflicts between the Constitution and a constitutional law, the latter normally prevails, according to the legal principle that "a later law repeals an earlier law" (lex posterior derogat priori).[1]
Constitutional laws that alter or abolish portions of the text of the Constitution are also called leggi di revisione costituzionale (laws amending the Constitution). They are equivalent to amendments to the Constitution of other legal systems (e.g., the United States or Ireland).
Procedure
The Constitution of Italy, as a rigid constitution, overrules other laws and cannot be repealed or amended by them.[2] Article 138 of the Constitution provides for a special procedure for the Parliament to adopt constitutional laws, including laws to amend the Constitution. Compared to other systems with rigid constitutions, the procedure to amend the Constitution of Italy is among the easiest and is a variation of the ordinary legislative procedure.[3]
The ordinary procedure to adopt a law in Italy requires both houses of parliament to approve the law in the same text by a simple majority cast. Constitutional laws start by following the same procedure, but after being approved for the first time, they must be approved by both houses a second time, at least three months later. In the second reading, no new amendments to the bill may be proposed, but the bill must be approved or rejected in its entirety.
The constitutional law needs to be approved by a majority in each house in its second reading. Depending on the results of the second vote, the constitutional law may then follow two different paths:
If the bill is approved by a qualified majority of two thirds of members in both houses, it can be immediately promulgated by the President of Italy and become law.
If the bill is approved by a majority of members in each house but less than the two-thirds majority, it must first be published in the Official Gazette, the official journal in which all Italian laws are published. Then, within three months after its publication, a constitutional referendum may be requested by 500,000 voters, five regional councils, or one fifth of the members of either house of parliament. If no constitutional referendum has been requested after the three months have elapsed, the bill can be promulgated and becomes law.
Constitutional referendum
If a constitutional referendum is requested, the bill must be approved by a majority of votes cast by the whole electorate to become law. No quorum is required and so the referendum turnout has no effect on its validity, unlike in other forms of referendums in Italy.
Four constitutional referendums have ever been held in Italy. In 2001 and 2020, the constitutional laws were approved. In 2006 and 2016, they were rejected.
Limits
There are limits to the power of Parliament to amend the Constitution. One is established by Article 139 of the Constitution itself: the form of government of Italy, a republic, cannot be amended. That limit was introduced to protect the result of the institutional referendum in 1946 in which Italians voted to abolish the monarchy. That referendum had been held at the same time as the election of the Constituent Assembly of Italy.
The phrase "republican form (of government)" in Article 139 has been interpreted broadly. It is read to mean that the head of state office cannot be hereditary but also the principle of popular sovereignty is encapsulated. In other words, "republic" is interpreted to mean that the Italian Republic is also "democratic".[4]
The Constitutional Court has also stated in multiple judgments (starting with judgments no. 30 and 31 of 1971) that some principles contained in the Constitution are "supreme principles" (principi supremi), which cannot be repealed, even by amending the Constitution. Rights that the Constitution declares to be "inviolable" are examples of those supreme principles.[5]
List
The following table lists all constitutional laws adopted by Parliament since the coming into effect of the Constitution of 1948, including those that were later rejected in constitutional referendums (marked in red).
A particular category of constitutional laws is the special statutes of the autonomous regions of Italy. Since they are granted special conditions of autonomy, they are exceptions to the ordinary discipline of the Constitution, and special statutes may be adopted and amended only by constitutional laws. Those constitutional laws are marked in yellow in the table below.
Constitutional Law
Title
Articles amended
Method of approval
Content
Official Gazette
No. 1, 9 February 1948
Rules regarding judgments on constitutional legitimacy and guarantees of the Constitutional Court's independence.
Adopted by Constituent Assembly
Expands on the rules for judgments in front of the Constitutional Court and on the status of its judges.
Due date of “Transitory and Final Provisions,” no. XI
Adopted by Parliament (two-thirds majority)
Establishes 31 December 1963 as the deadline for Transitory and Final Provision no. XI of the Constitution (which provisionally allowed for the creation of new regions without using the procedure of Article 132 of the Constitution).
Allocation of three senators to the municipalities of Trieste, Duino Aurisina, Monrupino, Muggia, San Dorligo della Valle, and Sgonico.
Adopted by Parliament (two-thirds majority)
Provisionally creates a new constituency for the election of the Senate, after the annexation of Zone A of the Free Territory of Trieste with the Treaty of Osimo.
Amendments to Articles 56, 57, and 60 of the Constitution.
56, 57, 60
Adopted by Parliament (two-thirds majority)
Fixes the number of elected MPs to 630 deputies and 315 senators (before this reform, their number was variable and depended on the population). Changes the term of the Senate from six to five years, the same as the Chamber of Deputies.
Amendments to Articles 131 and 57 of the Constitution and creation of the region of “Molise”.
57, 131
Adopted by Parliament (two-thirds majority)
Splits the region of Abruzzi e Molise into two separate regions: Abruzzo and Molise. The new region of Molise is allocated two senators in the Senate (fewer than the normal minimum of seven established for other regions).
Establishes that Article 10, last paragraph, and Article 26, last paragraph, of the Constitution (which prohibit the extradition for political crimes of aliens and citizens respectively) do not apply for crimes of genocide.
Amendment to Article 135 of the Constitution and dispositions regarding the Constitutional Court.
135, VII
Adopted by Parliament (two-thirds majority)
Changes the term of the judges of the Constitutional Court from 12 to 9 years and makes them non re-electable. Expands on the rules for the election of the Constitutional Court.
Amendments to the terms of the Sicilian Regional Assembly and of regional councils of Sardinia, Aosta Valley, Trentino-Alto Adige, and Friuli-Venezia Giulia.
Adopted by Parliament (absolute majority); constitutional referendum not requested
Amends the special Statutes of all five autonomous regions regarding the election of their legislative bodies.
Amendment to Article 16 of the special Statute for Sardinia, approved with Constitutional Law no. 3 of 26 February 1948, regarding the definition of the number of members of the Regional Council.
Adopted by Parliament (absolute majority); constitutional referendum not requested
Fixes the number of the members of the Regional Council of Sardinia to 80 (before this reform, their number was variable and depended on the population).
Amendments to Articles 96, 134, and 135 of the Constitution and to Constitutional Law no. 1 of 11 March 1953, and rules regarding procedure for crimes under Article 96 of the Constitution.
96, 134, 135
Adopted by Parliament (absolute majority); constitutional referendum not requested
Abolishes the special jurisdiction of the Constitutional Court for crimes committed by prime ministers and ministers. They are now to be tried in front of ordinary courts, but with the consent of the house of parliament they belong to (the Senate if they are not MPs).
Amendments and integrations to Constitutional Law no. 1 of 23 February 1972, regarding the term of office of the Sicilian Regional Assembly and of the regional councils of Sardinia, Aosta Valley, Trentino-Alto Adige, and Friuli-Venezia Giulia. Amendments to the special Statute for the Aosta Valley.
Adopted by Parliament (absolute majority); constitutional referendum not requested
Amends the special Statutes of all five autonomous regions regarding the election of their legislative bodies.
Amendment to Article 88, second paragraph, of the Constitution.
88
Adopted by Parliament (two-thirds majority)
Allows for an exception to the rule that the President of Italy cannot dissolve the Parliament during the last six months of his or her mandate: the prohibition does not apply if this period coincides, even in part, with the last six months of the Parliament's term.
Amendment to Article 79 of the Constitution regarding the concession of amnesties and pardons.
79
Adopted by Parliament (absolute majority); constitutional referendum not requested
Introduces a special procedure requiring a qualified majority of two-thirds in each house of parliament to adopt a law that grants amnesties or pardons.
Functions of the Parliamentary Committee for Institutional Reforms and rules of the procedure to amend the Constitution.
Adopted by Parliament (absolute majority); constitutional referendum not requested
Gives mandate to a bicameral parliamentary committee to draft a future amendment, regarding the second part of the Constitution and the electoral systems of the legislatures of Italy and ordinary regions.
Grants greater immunities to Members of Parliament and prohibits the interception of Members of Parliament without the consent of the house they belong to.
Dispositions regarding the direct election of the President of the regional government and the statutory autonomy of the regions.
121, 122, 123, 126
Adopted by Parliament (two-thirds majority)
Grants greater autonomy to regions with ordinary statutes. In particular, ordinary statutes are now regional laws adopted with a special procedure (before the reform, they needed to be converted into law by the Parliament) and the regional governments follow a presidential system with a directly elected President (before the reform, they used a parliamentary model).
Amendment to Article 48 of the Constitution regarding the creation of the overseas electoral district for the exercise of the right to vote of Italian citizens residing abroad.
48
Adopted by Parliament (absolute majority); constitutional referendum not requested
Creates the overseas electoral district for the election of the Italian Parliament, reserving a number of seats (to be determined with a future constitutional law) in both houses to Italians residing abroad.
Dispositions regarding the direct election of the presidents of regions with special statute and of the autonomous provinces of Trento and Bolzano.
Adopted by Parliament (absolute majority); constitutional referendum not requested
Amends the special Statutes of all five autonomous regions. It extends the direct election of the President to all autonomous regions and provinces, except for the autonomous region of Trentino-South Tyrol and the autonomous province of Bolzano.
Reforms the second part of the Constitution, granting greater powers and autonomy to regions with ordinary statutes. This is most extensive reform to the Constitution to date, amending ten articles and abolishing five.
End of the effects of the first and second paragraphs of Transitory and Final Provision no. XIII of the Constitution.
XIII
Adopted by Parliament (absolute majority); constitutional referendum not requested
Ends the effects of the first two paragraphs of Transitory and Final Provision no. XIII of the Constitution (which banishes most members and descendants of the House of Savoy from Italy and prevents them from voting and being elected).
Overhauls the overall system of government, giving more powers to the Prime Minister, transforming the Senate into a federal chamber, and making the Republic more federal.
Amendment to Article 3 of the Statute of the region of Sicily, regarding the reduction of deputies in the Regional Sicilian Assembly. Transitory dispositions.
Adopted by Parliament (two-thirds majority)
Amends the special Statute for the region of Sicily, reducing the members of the Sicilian Assembly.
Amendments to Articles 15 and 16 of the special Statute for the region of Sardinia, Constitutional Law no. 1 of 31 January 1963, regarding the composition and election of the Regional Council.
Adopted by Parliament (two-thirds majority)
Amends the special Statute for the region of Sardinia, regarding the composition and election of the Regional Council.
Provisions for overcoming equal bicameralism, reducing the number of Members of Parliament, limiting the operating costs of the institutions, the suppression of the CNEL and the revision of Title V of Part II of the Constitution.
Overhauls the system of government, making changes to the legislative procedure, to the composition and powers of the Senate, and to the division of powers between State and ordinary regions. Abolishes the provinces (except for the two autonomous provinces of Trento and Bolzano) and the CNEL.
Amendments to the special Statute of the region of Friuli-Venezia Giulia, Constitutional Law no. 1 of 31 January 1963, regarding local entities, voting rights to the regional elections, and regional right of initiative.
Reduces the number of seats in the Chamber of Deputies from 630 to 400 (8 of whom elected abroad), and the number of seats in the Senate from 315 to 200 (4 of whom elected abroad); the minimum number of senators per region is reduced from 7 to 3 (barring Molise and Valle d'Aosta, which retain 2 and 1, respectively); the number of incumbent senators for life appointed by Presidents of the Republic can never excess 5 in total.
Amendment to article 119 of the Constitution regarding the recognition of the peculiarities of the islands and the overcoming of the disadvantages caused by insularity
119
Adopted by Parliament (absolute majority); constitutional referendum not requested
Introduces a formal recognition of the disadvantages experienced by Italians who do not live in mainland Italy, with a special focus on the inhabitants of Sicily and Sardinia
^ abcdTransitory and special provision no. XVII of the Constitution allowed the Constituent Assembly to adopt special regional statutes up until 31 January 1948.