The Sabor is composed of 151 members elected to a four-year term on the basis of direct, universal and equal suffrage by secret ballot.

The Sabor amends the borders of Croatia or the Constitution, enacts legislation, passes the state budget, declares war and decides on cessation of hostilities, adopts parliamentary resolutions and bylaws, adopts long-term national security and defence strategies, implements civil supervision of the armed forces and security services, calls referendums, performs elections and appointments conforming to the constitution and applicable legislation, supervises operations of the Government and other civil services responsible to the parliament, grants amnesty for criminal offences and performs other duties defined by the constitution.

After this, the Sabor became a regular gathering of the nobility, and its official title gradually stabilised by 1558 as the Parliament of the Kingdom of Croatia and Slavonia.

The Sabor initially reconvened as an assembly of State Anti-fascist Council for the National Liberation of Croatia (ZAVNOH) in 1943 and evolved since through various structures following the November 1945 elections and several changes of the constitution.

The Sabor, in its various forms, has represented the identity and opinions of Croats from the diets of the medieval nobility to the modern parliament.

[7] The parliament freely chose Ferdinand I of the House of Habsburg as the new ruler of Croatia, after centuries of Croatian personal union with Hungary.

[6][8] Following the entry into the Habsburg Monarchy, the Sabor became a regular noble diet, and its official title gradually stabilised by 1558 to the Parliament of the Kingdom of Croatia and Slavonia.

[6] In 1712, the Sabor once again invoked its prerogative to select the ruler, supporting what later became the Pragmatic Sanction of 1713 and electing Maria Theresa of Austria as monarch.

[6] This event is also specified by the Constitution of Croatia as a part of the foundation of unbroken Croatian statehood from the Middle Ages to the present.

At the time, the Sabor advocated the implicit severance of ties with the Kingdom of Hungary, emphasizing links to other South Slavic lands within the empire.

A period of neo-absolutism was followed by the Austro-Hungarian Compromise of 1867 and Croatian–Hungarian Settlement, recognizing the limited independence of Croatia, together with reinvigorated claims of uninterrupted Croatian statehood.

[9] Exercising its sovereignty once again on 29 October 1918, the Sabor decided on independence from Austria-Hungary and formation of the State of Slovenes, Croats and Serbs.

The council of the newly established state voted to form the Kingdom of Serbs, Croats and Slovenes; however, the Sabor never confirmed that decision.

[7][6] The 1921 constitution defining the new kingdom as a unitary state, and the abolition of historical administrative divisions, effectively ended Croatian autonomy for the time and the Sabor did not convene until the 1940s.

[6] The post-World War II Sabor developed from the National Anti-fascist Council of the People's Liberation of Croatia (ZAVNOH), formed in 1943.

The KNS, led by the former leaders of the Croatian Spring (Savka Dabčević-Kučar and Miko Tripalo), soon splintered into individual parties.

The parliament decides through simple majority votes, except in issues pertaining to (constitutionally recognised) ethnic minorities in Croatia, the constitution, electoral legislation, the scope and operational methods of governmental bodies and local government; in these cases, decisions are made by two-thirds majority votes.

It may also restrict constitutional rights and liberties in wartime or in cases of imminent war or following natural disasters, although that constitutional provision is limited to specific rights—right to life, prohibition of torture, cruel or denigrating conduct or punishment, upholding of habeas corpus and freedoms of thought, conscience and religious views.

The parliament decides on constitutional amendments, enacts legislation, passes the state budget, declares war and decides on the cessation of hostilities, adopts declarations of policy of the parliament, adopts national defence strategy, representing a long-term defence resource planning document,[27] and national defence strategy, which defines bases for establishment and implementation of institutions, measures and activities in response to general security issues and specific challenges and threats to Croatia,[28] implements civil supervision of the armed forces and security services, calls referendums, performs elections and appointments conforming to the constitution and applicable legislation, supervises operations of the government (headed by the Prime Minister of Croatia) and other civil services responsible to the parliament, grants amnesty for criminal offences and performs various other duties defined by the constitution.

The parliament appoints an ombudsman to promote and protect human rights and liberties established by the constitution, parliamentary legislation and treaties adopted by Croatia.

[47] The parliamentary committees debate and discuss initiatives and motions ahead of the enactment of laws, other regulations and other matters within the authority of the Sabor.

There are five deputy speakers in the current parliament: Željko Reiner (HDZ), Ivan Penava (DP) and Furio Radin (Ind.

[25] Several political parties, besides the HDZ, HSS, HNS, HSLS and SDP, have won parliamentary seats in the elections since 1990.

The Chamber of Deputies had been elected a few months earlier; its members enacted legislation creating a new territorial organisation of Croatia.

[61] Parliamentary debates and other proceedings are the subject of news coverage by media of Croatia, and Saborska televizija was set up in 2007 in addition as an IPTV channel broadcasting all plenary sessions of the parliament.

[62][63] Finally, the Parliament's Public Relations Department publishes a news bulletin available to all institutions and citizens of Croatia through a print paid subscription,[64] and online for free.

This Conferentia Regnorum Croatiae, Dalmatiae et Slavoniae consisted of the ban, two high clerics and three or four noblemen, and it would bring forward numerous acts; it met in various places, usually Zagreb or Varaždin, but also in Čiče, Ludbreg, Kerestinec, Vienna, Želin, Bratislava, Klenovnik, Slunj, Glina, Petrinja, Rasinja, Ptuj and Budim.

The building was originally designed to accommodate archives, the court and the office of the ban; however, the government of Zagreb County moved in as well in 1765.

Subsequently, the newly purchased building was named Banski dvori after its new primary purpose of housing the ban and his office.

[66] Due to the renovation works on the Sabor Palace following the events of the 2020 Zagreb earthquake, in 2024 the parliament has decided to temporarily relocate to the Črnomerec district, in the Petar Zrinski Barracks, the site of the Croatian Military Academy "Dr. Franjo Tuđman" [hr].