A legislative chamber or house is a

deliberative assembly A deliberative assembly is a meeting of members who use parliamentary procedure. Etymology In a speech to the electorate at Bristol in 1774, Edmund Burke described the British Parliament as a "deliberative assembly," and the expression became the ...

within a

legislature A legislature is an assembly with the authority to make law Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior,Robertson, ''Crimes against humanity'', 90. with its p ...

which generally meets and votes separately from the legislature's other chambers. Legislatures are usually

unicameral Unicameralism (from ''uni''- "one" + Latin ''camera'' "chamber") is a type of legislature, which consists of one house or assembly, that legislates and votes as one. Unicameral legislatures exist when there is no widely perceived need for multic ...

, consisting of only one chamber, or

bicameral Bicameralism is a type of legislature, one divided into two separate assemblies, chambers, or houses, known as a bicameral legislature. Bicameralism is distinguished from unicameralism, in which all members deliberate and vote as a single grou ...

, consisting of two, but there are rare examples of

tricameral Tricameralism is the practice of having three legislative or parliamentary chambers. It is contrasted with unicameralism and bicameralism, each of which is far more common. Varieties of tricameralism A disputed type of tricameralism is one whe ...

and tetracameral legislatures. The

Socialist Federal Republic of Yugoslavia The Socialist Federal Republic of Yugoslavia, commonly referred to as SFR Yugoslavia or simply as Yugoslavia, was a country in Central and Southeast Europe. It emerged in 1945, following World War II, and lasted until 1992, with the breakup of Yug ...

is the only country documented as having a

pentacameral In contrast to unicameralism, and bicameralism, multicameralism is the condition in which a legislature is divided into more than two deliberative assemblies, which are commonly called "chambers" or "houses". This usually includes tricamerali ...

(later hexacameral) legislature.

Bicameralism

In a ''bicameral'' legislature, the two bodies are often referred to as an ''upper'' and a ''lower'' house, where the latter is often regarded as more particularly the representatives of the people. The lower house is almost always the originator of

legislation Legislation is the process or result of enrolled bill, enrolling, enactment of a bill, enacting, or promulgation, promulgating laws by a legislature, parliament, or analogous Government, governing body. Before an item of legislation becomes law i ...

, and the upper house is the body that offers the "second look" and decides whether to

veto A veto is a legal power to unilaterally stop an official action. In the most typical case, a president or monarch vetoes a bill to stop it from becoming law. In many countries, veto powers are established in the country's constitution. Veto ...

or approve the

bill Bill(s) may refer to: Common meanings * Banknote, paper cash (especially in the United States) * Bill (law), a proposed law put before a legislature * Invoice, commercial document issued by a seller to a buyer * Bill, a bird or animal's beak Plac ...

s. In the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...

legislation can be originated in either house, but the lower house can ultimately prevail if the two houses repeatedly disagree. In most countries the lower house also has sole or predominant control over matters to do with

finance Finance is the study and discipline of money, currency and capital assets. It is related to, but not synonymous with economics, the study of production, distribution, and consumption of money, assets, goods and services (the discipline of fina ...

and

taxation A tax is a compulsory financial charge or some other type of levy imposed on a taxpayer (an individual or legal person, legal entity) by a governmental organization in order to fund government spending and various public expenditures (regiona ...

. A parliament's lower house is usually composed of at least 100

members Member may refer to: * Military jury, referred to as "Members" in military jargon * Element (mathematics), an object that belongs to a mathematical set * In object-oriented programming, a member of a class ** Field (computer science), entries in ...

, in countries with populations of over 3 million. The number of seats rarely exceeds 400, even in very large countries. Among the countries with large lower houses are France, where the

National Assembly In politics, a national assembly is either a unicameral legislature, the lower house of a bicameral legislature, or both houses of a bicameral legislature together. In the English language it generally means "an assembly composed of the repre ...

has 577 members, and Japan, where the

House of Representatives House of Representatives is the name of legislative bodies in many countries and sub-national entitles. In many countries, the House of Representatives is the lower house of a bicameral legislature, with the corresponding upper house often c ...

has 475 members. The upper house of a parliament customarily has anywhere from 20 to 200 seats, but almost always significantly fewer than the lower house. In the United Kingdom however, the lower house (the

House of Commons The House of Commons is the name for the elected lower house of the bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of parliament. ...

) has 650 members, but the upper house (the

House of Lords The House of Lords, also known as the House of Peers, is the Bicameralism, upper house of the Parliament of the United Kingdom. Membership is by Life peer, appointment, Hereditary peer, heredity or Lords Spiritual, official function. Like the ...

) currently has slightly more members than the lower house, and at one time (before the exclusion of most of the

hereditary peer The hereditary peers form part of the peerage in the United Kingdom. As of September 2022, there are 807 hereditary peers: 29 dukes (including five royal dukes), 34 marquesses, 190 earls, 111 viscounts, and 443 barons (disregarding subsid ...

s) had considerably more.

Merging of chambers

Until 1953, the

Rigsdag Rigsdagen () was the name of the national legislature of Denmark from 1849 to 1953. ''Rigsdagen'' was Denmark's first parliament, and it was incorporated in the Constitution of 1849. It was a bicameral legislature, consisting of two houses, th ...

Denmark ) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Danish Realm, Kingdom of Denmark ...

was divided into two houses, the "

Folketing The Folketing ( da, Folketinget, ; ), also known as the Parliament of Denmark or the Danish Parliament in English, is the unicameral national legislature (parliament) of the Kingdom of Denmark—Denmark proper together with the Faroe Islands ...

" and " Landsting", but has since become a

legislature. The same goes with

Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...

, and its "

Riksdag The Riksdag (, ; also sv, riksdagen or ''Sveriges riksdag'' ) is the legislature and the supreme decision-making body of Sweden. Since 1971, the Riksdag has been a unicameral legislature with 349 members (), elected proportionally and se ...

" until 1971. The

Norwegian parliament The Storting ( no, Stortinget ) (lit. the Great Thing) is the supreme legislature of Norway, established in 1814 by the Constitution of Norway. It is located in Oslo. The unicameral parliament has 169 members and is elected every four years base ...

(''Storting'') was officially divided in two chambers 1814–2009, but functioned as a single chamber in practice, a situation called Qualified unicameralism.

Floor and committee

The ''

floor A floor is the bottom surface of a room or vehicle. Floors vary from simple dirt in a cave to many layered surfaces made with modern technology. Floors may be stone, wood, bamboo, metal or any other material that can support the expected load ...

'' is the name for the full assembly, and a ''

committee A committee or commission is a body of one or more persons subordinate to a deliberative assembly. A committee is not itself considered to be a form of assembly. Usually, the assembly sends matters into a committee as a way to explore them more ...

'' is a small deliberative assembly that is usually subordinate to the floor. In the United Kingdom, either chamber may opt to take some business such as detailed consideration of a

Bill Bill(s) may refer to: Common meanings * Banknote, paper cash (especially in the United States) * Bill (law), a proposed law put before a legislature * Invoice, commercial document issued by a seller to a buyer * Bill, a bird or animal's beak Plac ...

on the Floor of the House instead of in Committee.

Security

The building that houses the Chambers of a Parliament is usually equipped with an internal police and in some, the public force is not allowed access without authorisation.In

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...

the judge could raise conflict of powers against the House asking the Constitutional Court - in accordance with decision no. 120/2014 - for access to the Palace to perform his duties:

Bicameralism

Merging of chambers

Floor and committee

Security

References

See also