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Unicameralism (from ''uni''- "one" + Latin ''camera'' "chamber") is a type of
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 consists of one house or assembly, that legislates and votes as one. Unicameral legislatures exist when there is no widely perceived need for
multicameralism 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 tricameral ...
(
two 2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and only even prime number. Because it forms the basis of a duality, it has religious and spiritual significance in many cultur ...
or more chambers). Many multicameral legislatures were created to give separate voices to different sectors of society. Multiple houses allowed, for example, for a guaranteed representation of different social classes (as in the
Parliament of the United Kingdom The Parliament of the United Kingdom is the supreme legislative body of the United Kingdom, the Crown Dependencies and the British Overseas Territories. It meets at the Palace of Westminster, London. It alone possesses legislative suprema ...
or the
French States-General In France under the Ancien Régime, the Estates General (french: États généraux ) or States-General was a legislative and consultative assembly of the different classes (or estates) of French subjects. It had a separate assembly for each of t ...
). Sometimes, as in
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...
and
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 ...
, unicameralism comes about through the abolition of one of two bicameral chambers, or, as in
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 ...
, through the merger of the two chambers into a single one, while in others a second chamber has never existed from the beginning.


Rationale for unicameralism and criticism

The principal advantage of a unicameral system is more efficient lawmaking, as the legislative process is simpler and there is no possibility of
deadlock In concurrent computing, deadlock is any situation in which no member of some group of entities can proceed because each waits for another member, including itself, to take action, such as sending a message or, more commonly, releasing a loc ...
between two chambers. Proponents of unicameralism have also argued that it reduces costs, even if the number of legislators stays the same, since there are fewer institutions to maintain and support financially and that it is more democratic. Proponents of bicameral legislatures say that having two legislative chambers offers the opportunity to re-debate and correct errors in either chamber in parallel, and in some cases to introduce legislation in either chamber. The main weakness of a unicameral system can be seen as potential lack of restraint on the majority, particularly noticeable in
parliamentary system A parliamentary system, or parliamentarian democracy, is a system of democratic governance of a state (or subordinate entity) where the executive derives its democratic legitimacy from its ability to command the support ("confidence") of th ...
s where the leaders of the parliamentary majority also dominate the
executive Executive ( exe., exec., execu.) may refer to: Role or title * Executive, a senior management role in an organization ** Chief executive officer (CEO), one of the highest-ranking corporate officers (executives) or administrators ** Executive dir ...
. There is also the risk that important sectors of society may not be adequately represented by the elected singular body.


List of unicameral legislatures

Approximately half of the world's
sovereign state A sovereign state or sovereign country, is a political entity represented by one central government that has supreme legitimate authority over territory. International law defines sovereign states as having a permanent population, defined te ...
s are currently unicameral. The
People's Republic of China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
is somewhat in-between, with a legislature and a formal advisory body. China has a Chinese People's Political Consultative Conference which meets alongside the
National People's Congress The National People's Congress of the People's Republic of China (NPC; ), or simply the National People's Congress, is constitutionally the supreme state authority and the national legislature of the People's Republic of China. With 2,9 ...
, in many respects an advisory "upper house". Many
subnational entities Administrative division, administrative unit,Article 3(1). country subdivision, administrative region, subnational entity, constituent state, as well as many similar terms, are generic names for geographical areas into which a particular, ind ...
have unicameral legislatures. These include the state of
Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the sout ...
and territories of
Guam Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...
and the
Virgin Islands The Virgin Islands ( es, Islas Vírgenes) are an archipelago in the Caribbean Sea. They are geologically and biogeographically the easternmost part of the Greater Antilles, the northern islands belonging to the Puerto Rico Trench and St. Cro ...
in the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
, the Chinese
special administrative regions The special administrative regions (SAR) of the People's Republic of China are one of the provincial-level administrative divisions of the People's Republic of China directly under the control of its Central People's Government (State Co ...
of
Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delt ...
and
Macao Macau or Macao (; ; ; ), officially the Macao Special Administrative Region of the People's Republic of China (MSAR), is a city and special administrative region of China in the western Pearl River Delta by the South China Sea. With a po ...
, the
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
n state of
Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , establishe ...
as well as the
Northern Territory The Northern Territory (commonly abbreviated as NT; formally the Northern Territory of Australia) is an Australian territory in the central and central northern regions of Australia. The Northern Territory shares its borders with Western Aust ...
and the
Australian Capital Territory The Australian Capital Territory (commonly abbreviated as ACT), known as the Federal Capital Territory (FCT) until 1938, is a landlocked federal territory of Australia containing the national capital Canberra and some surrounding townships. I ...
, a majority of the
provinces of Argentina Argentina is subdivided into twenty-three federated states called provinces ( es, provincias, singular ''provincia'') and one called the autonomous city (''ciudad autónoma'') of Buenos Aires, which is the federal capital of the republic ( e ...
, all of the provinces and territories in
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
, all of the German states, all of the
regions of Italy The regions of Italy ( it, regioni d'Italia) are the first-level administrative divisions of the Italian Republic, constituting its second NUTS administrative level. There are twenty regions, five of which have higher autonomy than the rest. ...
, all of the
Spanish autonomous communities eu, autonomia erkidegoa ca, comunitat autònoma gl, comunidade autónoma oc, comunautat autonòma an, comunidat autonoma ast, comunidá autónoma , alt_name = , map = , category = Autonomous administra ...
, both the
autonomous regions of Portugal The two Autonomous Regions of Portugal from 1999 ( pt, Regiões Autónomas de Portugal) are the Azores (''Região Autónoma dos Açores'') and Madeira (''Região Autónoma da Madeira''). Together with Continental Portugal (''Portugal Continenta ...
, most of the states and union territories of India, and all of the states of Brazil. 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 ...
, the devolved Scottish Parliament, the
Senedd Cymru The Senedd (; ), officially known as the Welsh Parliament in English and () in Welsh, is the devolved, unicameral legislature of Wales. A democratically elected body, it makes laws for Wales, agrees certain taxes and scrutinises the Welsh Gove ...
, the Northern Ireland Assembly, and the London Assembly are also unicameral.


National (UN member states and observers)


Federal

*
Assembly of the Union The Pyidaungsu Hluttaw ( my, ပြည်ထောင်စု လွှတ်တော် lit. Assembly of the Union) is the ''de jure'' national-level bicameral legislature of Myanmar (officially known as the ''Republic of the Union of My ...
of the Comoros *
Bundestag The Bundestag (, "Federal Diet") is the German federal parliament. It is the only federal representative body that is directly elected by the German people. It is comparable to the United States House of Representatives or the House of Common ...
of Germany *
Council of Representatives The Council of Representatives (''Majlis an-nuwab''), sometimes translated as the "Chamber of Deputies", is the name given to the lower house of the Bahraini National Assembly, the national legislative body of Bahrain. The council was created ...
of Iraq (provision exists for the founding of a "Council of Union", but no move to this effect has been initiated by the existing Council) *
Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
of the Federated States of Micronesia *
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 rep ...
of Saint Kitts and Nevis *
Federal National Council The Federal National Council (FNC) ( ar, المجلس الوطني الإتحادي, ''al-Majlis al-Watani al-Ittihadi'') of the United Arab Emirates (UAE) is an advisory quasi-parliamentary body in the UAE. The FNC consists of 40 members. Twen ...
of the United Arab Emirates *
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 rep ...
of Venezuela


Unitary


=Africa

= *
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 rep ...
of Angola *
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 rep ...
of Benin *
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 rep ...
of Botswana *
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 rep ...
of Burkina Faso *
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 rep ...
of Cape Verde *
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 rep ...
of the Central African Republic *
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 rep ...
of Chad *
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 rep ...
of Djibouti *
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 rep ...
of Eritrea *
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 rep ...
of The Gambia *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Ghana *
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 rep ...
of Guinea * National People's Assembly of Guinea-Bissau *
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 ...
of Libya *
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 rep ...
of Malawi * Majlis of Maldives *
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 rep ...
of Mali *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Mauritania *
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 rep ...
of Mauritius * Assembly of the Republic of Mozambique *
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 rep ...
of Niger *
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 rep ...
of São Tomé and Príncipe *
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 rep ...
of Senegal *
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 rep ...
of Seychelles *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Sierra Leone *
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 rep ...
of Tanzania *
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 rep ...
of Togo *
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 rep ...
of Tunisia *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Uganda *
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 rep ...
of Zambia


=Asia

= * Leadership Council of Afghanistan *
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 rep ...
of Armenia *
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 rep ...
of Azerbaijan *
Jatiya Sangsad The Jatiya Sangsad ( bn, জাতীয় সংসদ, lit=National Parliament, translit=Jatiyô Sôngsôd), often referred to simply as the ''Sangsad'' or JS and also known as the House of the Nation, is the supreme legislative body of B ...
of Bangladesh * Legislative Council of Brunei *
National People's Congress The National People's Congress of the People's Republic of China (NPC; ), or simply the National People's Congress, is constitutionally the supreme state authority and the national legislature of the People's Republic of China. With 2,9 ...
of the People's Republic of China – though they also have a Chinese People's Political Consultative Conference which is effectively an advisory "upper house". *
National Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of East Timor *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Georgia * Islamic Consultative Assembly of Iran *
Knesset The Knesset ( he, הַכְּנֶסֶת ; "gathering" or "assembly") is the unicameral legislature of Israel. As the supreme state body, the Knesset is sovereign and thus has complete control of the entirety of the Israeli government (with ...
of Israel * Supreme People's Assembly of the Democratic People's Republic of Korea (North Korea) *
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 rep ...
of the Republic of Korea (South Korea) *
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 rep ...
of Kuwait * Supreme Council of Kyrgyzstan *
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 rep ...
of Laos *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Lebanon * State Great Khural of Mongolia * Legislative Council of Palestine * Consultative Assembly of Qatar * Consultative Assembly of Saudi Arabia (most powers are reserved for the
King King is the title given to a male monarch in a variety of contexts. The female equivalent is queen, which title is also given to the consort of a king. *In the context of prehistory, antiquity and contemporary indigenous peoples, the tit ...
) *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Singapore *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Sri Lanka *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Syria *
Grand National Assembly Great National Assembly or Grand National Assembly may refer to: * Great National Assembly of Alba Iulia, an assembly of Romanian delegates that declared the unification of Transylvania and Romania * Great National Assembly (Socialist Republic of R ...
of Turkey *
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 rep ...
of Vietnam


=Europe

= * Kuvendi of Albania *
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 rep ...
of Bulgaria *
Sabor The Croatian Parliament ( hr, Hrvatski sabor) or the Sabor is the unicameral legislature of the Republic of Croatia. Under the terms of the Croatian Constitution, the Sabor represents the people and is vested with legislative power. The Sabo ...
of Croatia *
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 ...
of Denmark *
Riigikogu The Riigikogu (; from Estonian ''riigi-'', of the state, and ''kogu'', assembly) is the unicameral parliament of Estonia. In addition to approving legislation, the Parliament appoints high officials, including the Prime Minister and Chief Just ...
of Estonia *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Finland *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Greece *
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 rep ...
of Hungary *
Althing The Alþingi (''general meeting'' in Icelandic, , anglicised as ' or ') is the supreme national parliament of Iceland. It is one of the oldest surviving parliaments in the world. The Althing was founded in 930 at (" thing fields" or "assemb ...
of Iceland *
Saeima The Saeima () is the parliament of the Latvia, Republic of Latvia. It is a unicameral parliament consisting of 100 members who are elected by proportional representation, with seats allocated to political parties which gain at least 5% of the po ...
of Latvia *
Landtag A Landtag (State Diet) is generally the legislative assembly or parliament of a federated state or other subnational self-governing entity in German-speaking nations. It is usually a unicameral assembly exercising legislative competence in non ...
of Liechtenstein *
Seimas The Seimas of the Republic of Lithuania ( lt, Lietuvos Respublikos Seimas), or simply the Seimas (), is the unicameral parliament of Lithuania. The Seimas constitutes the legislative branch of government in Lithuania, enacting laws and amendme ...
of Lithuania * Chamber of Deputies of Luxembourg *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Malta *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Moldova * National Council of Monaco *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Montenegro *
Assembly Assembly may refer to: Organisations and meetings * Deliberative assembly, a gathering of members who use parliamentary procedure for making decisions * General assembly, an official meeting of the members of an organization or of their representa ...
of North Macedonia * Storting of Norway * Assembly of the Republic of Portugal *
Grand and General Council The Grand and General Council ( it, Consiglio Grande e Generale) is the parliament of San Marino. The council has 60 members elected for a five-year term. History From the fifth century San Marino was ruled by an assembly composed by all t ...
of San Marino *
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 rep ...
of Serbia * National Council of Slovakia * Riksdag of Sweden *
Verkhovna Rada The Verkhovna Rada of Ukraine ( uk, Верхо́вна Ра́да Украї́ни, translit=, Verkhovna Rada Ukrainy, translation=Supreme Council of Ukraine, Ukrainian abbreviation ''ВРУ''), often simply Verkhovna Rada or just Rada, is the ...
of Ukraine * Pontifical Commission for Vatican City


=North America

= * Legislative Assembly of Costa Rica *
National Assembly of People's Power The National Assembly of People's Power ( es, Asamblea Nacional del Poder Popular) is the unicameral parliament of the Republic of Cuba. It is currently composed of 605 representatives who are elected from multi-member electoral districts for ...
of Cuba *
House of Assembly House of Assembly is a name given to the legislature or lower house of a bicameral parliament. In some countries this may be at a subnational level. Historically, in British Crown colonies as the colony gained more internal responsible gove ...
of Dominica * Legislative Assembly of El Salvador *
Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
of Guatemala * National Congress of Honduras *
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 rep ...
of Nicaragua *
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 rep ...
of Panama *
House of Assembly House of Assembly is a name given to the legislature or lower house of a bicameral parliament. In some countries this may be at a subnational level. Historically, in British Crown colonies as the colony gained more internal responsible gove ...
of Saint Vincent and the Grenadines


=Oceania

= *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of the Cook Islands *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Fiji *
House of Assembly House of Assembly is a name given to the legislature or lower house of a bicameral parliament. In some countries this may be at a subnational level. Historically, in British Crown colonies as the colony gained more internal responsible gove ...
of Kiribati *
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 ...
of the Marshall Islands *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Nauru *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of New Zealand *
Assembly Assembly may refer to: Organisations and meetings * Deliberative assembly, a gathering of members who use parliamentary procedure for making decisions * General assembly, an official meeting of the members of an organization or of their representa ...
of Niue *
National Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Papua New Guinea * Legislative Assembly of Samoa *
National Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Solomon Islands * Legislative Assembly of Tonga *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Tuvalu *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Vanuatu


=South America

= *
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 rep ...
of Ecuador *
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 rep ...
of Guyana * Congress of the Republic of Peru *
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 rep ...
of Suriname


Territorial

*
House of Assembly House of Assembly is a name given to the legislature or lower house of a bicameral parliament. In some countries this may be at a subnational level. Historically, in British Crown colonies as the colony gained more internal responsible gove ...
of the British Virgin Islands * Legislative Assembly of the Cayman Islands * Legislative Assembly of the Falkland Islands * The
Løgting The Løgting (pronounced ; da, Lagtinget) is the unicameral parliament of the Faroe Islands, an autonomous territory within the Danish Realm. The name literally means "''Law Thing''"—that is, a law assembly—and derives from Old Norse ''l ...
of the Faroe Islands *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Gibraltar *
Inatsisartut The Inatsisartut ( kl, Inatsisartut; '' da, Landstinget, lit=''the land's- thing'' of Greenland''), also known as the Parliament of Greenland in English, is the unicameral parliament (legislative branch) of Greenland, an autonomous territory* ...
of Greenland *
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 ...
of Guam * Legislative Council of Hong Kong * Legislative Assembly of Macao *
House of Assembly House of Assembly is a name given to the legislature or lower house of a bicameral parliament. In some countries this may be at a subnational level. Historically, in British Crown colonies as the colony gained more internal responsible gove ...
of Tobago *
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 ...
of the U.S. Virgin Islands


State parliaments with limited recognition

* People's Assembly of Abkhazia *
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 rep ...
of the Republic of Artsakh *
Assembly Assembly may refer to: Organisations and meetings * Deliberative assembly, a gathering of members who use parliamentary procedure for making decisions * General assembly, an official meeting of the members of an organization or of their representa ...
of Kosovo * Assembly of the Republic of Northern Cyprus * National Council of the Sahrawi Arab Democratic Republic *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of South Ossetia * Legislative Yuan of the Republic of China (Taiwan) * Supreme Council of Transnistria


Subnational


Federations

* All legislatures and legislative councils of the regions and communities of Belgium * All legislative assemblies in all states of Brazil * All legislative assemblies of the provinces and territories of Canada * All
Landtag A Landtag (State Diet) is generally the legislative assembly or parliament of a federated state or other subnational self-governing entity in German-speaking nations. It is usually a unicameral assembly exercising legislative competence in non ...
e of the states of Germany * All legislative assemblies of the states of Malaysia * All legislatures in all states of Mexico * All legislatures of the
provinces A province is almost always an administrative division within a country or state. The term derives from the ancient Roman '' provincia'', which was the major territorial and administrative unit of the Roman Empire's territorial possessions ou ...
in Nepal * All legislatures of the provinces and territories in Pakistan * The
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 ...
of the
state State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our S ...
of Nebraska, and council of the District of Columbia in the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
*
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of Queensland and the legislative assemblies of the
territories A territory is an area of land, sea, or space, particularly belonging or connected to a country, person, or animal. In international politics, a territory is usually either the total area from which a state may extract power resources or a ...
of Australia (but not the other states) * Provincial legislatures of the
provinces A province is almost always an administrative division within a country or state. The term derives from the ancient Roman '' provincia'', which was the major territorial and administrative unit of the Roman Empire's territorial possessions ou ...
of South Africa * Narodna skupština of Republika Srpska * 15 of the
provinces A province is almost always an administrative division within a country or state. The term derives from the ancient Roman '' provincia'', which was the major territorial and administrative unit of the Roman Empire's territorial possessions ou ...
of Argentina – Chaco, Chubut, Córdoba, Formosa, Jujuy, La Pampa, La Rioja, Misiones, Neuquén, Río Negro, San Juan, Santa Cruz, Santiago del Estero, Tierra del Fuego, Tucumán, and the autonomous city of Buenos Aires. * 22 of the states of India –
Arunachal Pradesh Arunachal Pradesh (, ) is a state in Northeastern India. It was formed from the erstwhile North-East Frontier Agency (NEFA) region, and became a state on 20 February 1987. It borders the states of Assam and Nagaland to the south. It shares ...
,
Assam Assam (; ) is a state in northeastern India, south of the eastern Himalayas along the Brahmaputra and Barak River valleys. Assam covers an area of . The state is bordered by Bhutan and Arunachal Pradesh to the north; Nagaland and Manipur ...
, Chhattisgarh,
Goa Goa () is a state on the southwestern coast of India within the Konkan region, geographically separated from the Deccan highlands by the Western Ghats. It is located between the Indian states of Maharashtra to the north and Karnataka to the ...
,
Gujarat Gujarat (, ) is a state along the western coast of India. Its coastline of about is the longest in the country, most of which lies on the Kathiawar peninsula. Gujarat is the fifth-largest Indian state by area, covering some ; and the ninth ...
,
Haryana Haryana (; ) is an Indian state located in the northern part of the country. It was carved out of the former state of East Punjab on 1 Nov 1966 on a linguistic basis. It is ranked 21st in terms of area, with less than 1.4% () of India's land a ...
,
Himachal Pradesh Himachal Pradesh (; ; "Snow-laden Mountain Province") is a state in the northern part of India. Situated in the Western Himalayas, it is one of the thirteen mountain states and is characterized by an extreme landscape featuring several peaks ...
,
Jharkhand Jharkhand (; ; ) is a state in eastern India. The state shares its border with the states of West Bengal to the east, Chhattisgarh to the west, Uttar Pradesh to the northwest, Bihar to the north and Odisha to the south. It has an area of . I ...
,
Kerala Kerala ( ; ) is a state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile regions of Cochin, Malabar, South ...
,
Madhya Pradesh Madhya Pradesh (, ; meaning 'central province') is a state in central India. Its capital is Bhopal, and the largest city is Indore, with Jabalpur, Ujjain, Gwalior, Sagar, and Rewa being the other major cities. Madhya Pradesh is the seco ...
,
Manipur Manipur () ( mni, Kangleipak) is a state in Northeast India, with the city of Imphal as its capital. It is bounded by the Indian states of Nagaland to the north, Mizoram to the south and Assam to the west. It also borders two regions of ...
,
Meghalaya Meghalaya (, or , meaning "abode of clouds"; from Sanskrit , "cloud" + , "abode") is a state in northeastern India. Meghalaya was formed on 21 January 1972 by carving out two districts from the state of Assam: (a) the United Khasi Hills and J ...
,
Mizoram Mizoram () is a state in Northeast India, with Aizawl as its seat of government and capital city. The name of the state is derived from "Mizo", the self-described name of the native inhabitants, and "Ram", which in the Mizo language means "lan ...
,
Nagaland Nagaland () is a landlocked state in the northeastern region of India. It is bordered by the Indian states of Arunachal Pradesh to the north, Assam to the west, Manipur to the south and the Sagaing Region of Myanmar to the east. Its capital cit ...
,
Odisha Odisha (English: , ), formerly Orissa ( the official name until 2011), is an Indian state located in Eastern India. It is the 8th largest state by area, and the 11th largest by population. The state has the third largest population of ...
,
Punjab Punjab (; Punjabi: پنجاب ; ਪੰਜਾਬ ; ; also romanised as ''Panjāb'' or ''Panj-Āb'') is a geopolitical, cultural, and historical region in South Asia, specifically in the northern part of the Indian subcontinent, comprising a ...
,
Rajasthan Rajasthan (; lit. 'Land of Kings') is a state in northern India. It covers or 10.4 per cent of India's total geographical area. It is the largest Indian state by area and the seventh largest by population. It is on India's northwestern s ...
,
Sikkim Sikkim (; ) is a state in Northeastern India. It borders the Tibet Autonomous Region of China in the north and northeast, Bhutan in the east, Province No. 1 of Nepal in the west and West Bengal in the south. Sikkim is also close to the Silig ...
,
Tamil Nadu Tamil Nadu (; , TN) is a States and union territories of India, state in southern India. It is the List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of India ...
,
Tripura Tripura (, Bengali: ) is a state in Northeast India. The third-smallest state in the country, it covers ; and the seventh-least populous state with a population of 36.71 lakh ( 3.67 million). It is bordered by Assam and Mizoram to the ea ...
,
Uttarakhand Uttarakhand ( , or ; , ), also known as Uttaranchal ( ; the official name until 2007), is a state in the northern part of India. It is often referred to as the "Devbhumi" (literally 'Land of the Gods') due to its religious significance and ...
, and
West Bengal West Bengal (, Bengali: ''Poshchim Bongo'', , abbr. WB) is a state in the eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabitants within an area of . West Bengal is the fou ...
; and 3 of the union territories –
Delhi Delhi, officially the National Capital Territory (NCT) of Delhi, is a city and a union territory of India containing New Delhi, the capital of India. Straddling the Yamuna river, primarily its western or right bank, Delhi shares borders w ...
, Jammu and Kashmir, and
Puducherry Puducherry or Pondicherry may refer to: * Puducherry (union territory), a union territory of India ** Pondicherry, capital of the union territory of Puducherry ** Puducherry district, a district of the union territory of Puducherry ** Puducherry t ...
.


Devolved governments

* Iraqi Kurdistan
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
* Northern Ireland Assembly * Scottish Parliament * Senedd (Welsh Parliament) * Parliaments of the
autonomous communities eu, autonomia erkidegoa ca, comunitat autònoma gl, comunidade autónoma oc, comunautat autonòma an, comunidat autonoma ast, comunidá autónoma , alt_name = , map = , category = Autonomous administra ...
of Spain * All regional councils of France * Bangsamoro
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
* All Oblast Councils of Ukraine * City and County Councils of the special municipalities, provincial cities, and counties of the Republic of China (Taiwan)


Others

* Local People's Congresses of all levels of provinces, regions, and municipalities of the People's Republic of China * National Council of the Palestine Liberation Organization


List of historical unicameral legislatures


National

* The
First Protectorate Parliament The First Protectorate Parliament was summoned by the Lord Protector Oliver Cromwell under the terms of the Instrument of Government. It sat for one term from 3 September 1654 until 22 January 1655 with William Lenthall as the Speaker of the Ho ...
and
Second Protectorate Parliament The Second Protectorate Parliament in England sat for two sessions from 17 September 1656 until 4 February 1658, with Thomas Widdrington as the Speaker of the House of Commons. In its first session, the House of Commons was its only chamber; in ...
of the
Kingdom of England The Kingdom of England (, ) was a sovereign state on the island of Great Britain from 12 July 927, when it emerged from various Anglo-Saxon kingdoms, until 1 May 1707, when it united with Scotland to form the Kingdom of Great Britain. On 1 ...
, regulated by the
Instrument of Government The Instrument of Government was a constitution of the Commonwealth of England, Scotland and Ireland. Drafted by Major-General John Lambert in 1653, it was the first sovereign codified and written constitution in England. Antecedence The ' ...
(dissolved) *
Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: representing the electorate, making laws, and overseeing the government via hearings and inquiries. Th ...
of the
Kingdom of Scotland The Kingdom of Scotland (; , ) was a sovereign state in northwest Europe traditionally said to have been founded in 843. Its territories expanded and shrank, but it came to occupy the northern third of the island of Great Britain, sharing a l ...
until 1707 (dissolved) * Congress of the Confederation was unicameral before being replaced in 1789 by the current, bicameral United States Congress. * Provisional Congress of the Confederate States was unicameral before being replaced by the bicameral Confederate States Congress in 1862. *
Congress of Deputies The Congress of Deputies ( es, link=no, Congreso de los Diputados, italic=unset) is the lower house of the Cortes Generales, Spain's legislative branch. The Congress meets in the Palace of the Parliament () in Madrid. It has 350 members elect ...
of
Second Spanish Republic The Spanish Republic (), commonly known as the Second Spanish Republic (), was the form of government in Spain from 1931 to 1939. The Republic was proclaimed on 14 April 1931, after the deposition of King Alfonso XIII, and was dissolved on 1 ...
was unicameral between 1931 and 1936. Dissolved at the end of
Spanish Civil War The Spanish Civil War ( es, Guerra Civil Española)) or The Revolution ( es, La Revolución, link=no) among Nationalists, the Fourth Carlist War ( es, Cuarta Guerra Carlista, link=no) among Carlists, and The Rebellion ( es, La Rebelión, link ...
* The
Parliament of Uzbekistan The Oliy Majlis ( Cyrillic ''Олий Мажлис'', ) is the parliament of Uzbekistan. It succeeded the Supreme Council of the Republic of Uzbekistan in 1995, and was unicameral until a reform implemented in January 2005 created a second chamb ...
was unicameral before being replaced in 2005 by the current, bicameral
Oliy Majlis The Oliy Majlis (Cyrillic ''Олий Мажлис'', ) is the parliament of Uzbekistan. It succeeded the Supreme Council of the Republic of Uzbekistan in 1995, and was unicameral until a reform implemented in January 2005 created a second chamber ...
. *
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 rep ...
of
Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...
was unicameral before being replaced in 2013 by the current, bicameral Parliament of Cameroon. * Chamber of People's Representative of Equatorial Guinea was unicameral before being replaced in 2013 by the current, bicameral Parliament of Equatorial Guinea. *
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 rep ...
of
Kenya ) , national_anthem = "Ee Mungu Nguvu Yetu"() , image_map = , map_caption = , image_map2 = , capital = Nairobi , coordinates = , largest_city = Nairobi , ...
was the country's unicameral legislature before becoming the lower house of the bicameral Parliament of Kenya in 2013. *
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 rep ...
of Ivory Coast was the country's unicameral legislature before becoming the lower house of the bicameral Parliament of Ivory Coast in 2016. *
Central National Committee Central National Committee (Polish: ''Komitet Centralny Narodowy (KCN)'') was the underground coordinating committee of the Polish independence movement in 1860s Congress Poland which was responsible for preparing a general uprising against Tsaris ...
and the
Provisional People's Representative Council The Provisional People's Representative Council ( id, Dewan Perwakilan Rakyat Sementara) was the first Indonesian legislature under the Provisional Constitution of 1950. The council was formed after the transition of Indonesia to a unitary state ...
of
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
was the unicameral legislature of the Republic of Indonesia during the
War of Independence This is a list of wars of independence (also called liberation wars). These wars may or may not have been successful in achieving a goal of independence. List See also * Lists of active separatist movements * List of civil wars * List o ...
and the Liberal democracy era.


Subnational

*
General Assembly A general assembly or general meeting is a meeting of all the members of an organization or shareholders of a company. Specific examples of general assembly include: Churches * General Assembly (presbyterian church), the highest court of presb ...
of
Georgia Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast United States Georgia may also refer to: Places Historical states and entities * Related to the ...
until 1789 *
General Assembly A general assembly or general meeting is a meeting of all the members of an organization or shareholders of a company. Specific examples of general assembly include: Churches * General Assembly (presbyterian church), the highest court of presb ...
of
Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...
until 1790 *
General Assembly A general assembly or general meeting is a meeting of all the members of an organization or shareholders of a company. Specific examples of general assembly include: Churches * General Assembly (presbyterian church), the highest court of presb ...
of
Vermont Vermont () is a state in the northeast New England region of the United States. Vermont is bordered by the states of Massachusetts to the south, New Hampshire to the east, and New York to the west, and the Canadian province of Quebec to ...
until 1836


Other

* Assembly of Representatives of
Yishuv Yishuv ( he, ישוב, literally "settlement"), Ha-Yishuv ( he, הישוב, ''the Yishuv''), or Ha-Yishuv Ha-Ivri ( he, הישוב העברי, ''the Hebrew Yishuv''), is the body of Jewish residents in the Land of Israel (corresponding to the ...
community in
Mandatory Palestine Mandatory Palestine ( ar, فلسطين الانتدابية '; he, פָּלֶשְׂתִּינָה (א״י) ', where "E.Y." indicates ''’Eretz Yiśrā’ēl'', the Land of Israel) was a geopolitical entity established between 1920 and 1948 ...
from 1920 to 1949


Unicameralism in the Philippines

Though the current
Congress of the Philippines The Congress of the Philippines ( fil, Kongreso ng Pilipinas, italic=unset) is the legislature of the national government of the Philippines. It is bicameral, composed of a lower body, the House of Representatives, although colloquially the te ...
is bicameral, the country experienced unicameralism in 1898 and 1899 (during the
First Philippine Republic The Philippine Republic ( es, República Filipina), now officially known as the First Philippine Republic, also referred to by historians as the Malolos Republic, was established in Malolos, Bulacan during the Philippine Revolution against ...
), from 1935 to 1941 (the Commonwealth era) and from 1943 to 1944 (during the Japanese occupation). Under the 1973 Constitution, the legislative body was called
Batasang Pambansa The Batasang Pambansa Complex, or simply the Batasan (), is the seat of the House of Representatives of the Philippines. It is located along the Batasan Road in Batasan Hills, Quezon City. The complex was initially the home of the Batasang ...
, which functioned also a unicameral legislature within a
parliamentary system A parliamentary system, or parliamentarian democracy, is a system of democratic governance of a state (or subordinate entity) where the executive derives its democratic legitimacy from its ability to command the support ("confidence") of th ...
(1973-1981) and a semi-presidential system (1981-1986) form of government. The ongoing process of amending or revising the current Constitution and form of government is popularly known as
Charter Change A constitutional amendment is a modification of the constitution of a polity, organization or other type of entity. Amendments are often interwoven into the relevant sections of an existing constitution, directly altering the text. Conversely, ...
. A shift to a unicameral parliament was included in the proposals of the constitutional commission created by President
Gloria Macapagal Arroyo Maria Gloria Macaraeg Macapagal Arroyo (, born April 5, 1947), often referred to by her initials GMA, is a Filipino academic and politician serving as one of the House Deputy Speakers since 2022, and previously from 2016 to 2017. She previously ...
. Unlike in the United States, senators in the
Senate of the Philippines The Senate of the Philippines ( Filipino: ''Senado ng Pilipinas'', also ''Mataas na Kapulungan ng Pilipinas'' or "upper chamber") is the upper house of Congress of the bicameral legislature of the Philippines with the House of Representatives ...
are elected not per district and state but nationally; the
Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...
is a
unitary state A unitary state is a sovereign state governed as a single entity in which the central government is the supreme authority. The central government may create (or abolish) administrative divisions (sub-national units). Such units exercise only th ...
. The Philippine government's decision-making process, relative to the United States, is more rigid, highly centralised, much slower and susceptible to political gridlock. As a result, the trend for unicameralism as well as other political system reforms are more contentious in the Philippines. While Congress is bicameral, all local legislatures are unicameral: the Bangsamoro Parliament, the Sangguniang Panlalawigan (Provincial Boards), Sangguniang Panlungsod (City Councils),
Sangguniang Bayan The Sangguniang Bayan () is the local legislative branch of the municipal governments in the Philippines. It is responsible for passing ordinances and resolutions for the administration of a municipality. Its powers are defined by the Local Gov ...
(Municipal Councils),
Sangguniang Barangay The Sangguniang Barangay, also known as the Barangay Council, and formerly as the Rural Council and then the Barrio Council, is the legislative body of a barangay, the lowest form of government in the Philippines. The term is coined from the Tag ...
(
Barangay A barangay (; abbreviated as Brgy. or Bgy.), historically referred to as barrio (abbreviated as Bo.), is the smallest administrative division in the Philippines and is the native Filipino term for a village, district, or ward. In metropolita ...
Councils), and the
Sangguniang Kabataan Sangguniang Kabataan (abbreviated as SK; ) is a council meant to represent the youth in each barangay in the Philippines. It was put "on hold", but not quite abolished, prior to the 2013 barangay elections. In January 2016, the Sangguniang ...
(Youth Councils).


Unicameralism in the United States

The Nebraska Legislature (also called the Unicameral) is the supreme legislative body of the state of Nebraska and the only unicameral state legislature in the United States. Its members are called "senators", as it was originally the upper house of a bicameral legislature before the Nebraska House of Representatives dissolved in 1937. The legislature is also notable for being nonpartisan and officially recognizes no party affiliation, making Nebraska unique among U.S. states. With 49 members, it is also the smallest legislature of any U.S. state. A 2018 study found that efforts to adopt unicameralism in Ohio and Missouri failed due to rural opposition. There was a fear in rural communities that unicameralism would diminish their influence in state government. Local government legislatures of counties, cities, or other political subdivisions within states are usually unicameral and have limited lawmaking powers compared to their state and federal counterparts. Some of the 13 colonies which became independent, such as
Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...
,
New Jersey New Jersey is a state in the Mid-Atlantic and Northeastern regions of the United States. It is bordered on the north and east by the state of New York; on the east, southeast, and south by the Atlantic Ocean; on the west by the Delaware ...
and
New Hampshire New Hampshire is a U.S. state, state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
had initially introduced strong unicameral legislature and (relatively) less powerful governors with no veto power. Pennsylvania's constitution lasted only 14 years. In 1790, conservatives gained power in the state legislature, called a new constitutional convention, and rewrote the constitution. The new constitution substantially reduced universal male suffrage, gave the governor veto power and patronage appointment authority, and added an upper house with substantial wealth qualifications to the unicameral legislature.
Thomas Paine Thomas Paine (born Thomas Pain; – In the contemporary record as noted by Conway, Paine's birth date is given as January 29, 1736–37. Common practice was to use a dash or a slash to separate the old-style year from the new-style year. In th ...
called it a constitution unworthy of America. In 1999, Governor
Jesse Ventura Jesse Ventura (born James George Janos; July 15, 1951) is an American politician, actor, and retired professional wrestler. After achieving fame in the World Wrestling Federation (WWF), he served as the 38th governor of Minnesota from 1999 to 2 ...
proposed converting the Minnesota Legislature into a single chamber. Although debated, the idea was never adopted. Seven U.S. states,
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
,
Idaho Idaho ( ) is a state in the Pacific Northwest region of the Western United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyomi ...
,
Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...
,
New Jersey New Jersey is a state in the Mid-Atlantic and Northeastern regions of the United States. It is bordered on the north and east by the state of New York; on the east, southeast, and south by the Atlantic Ocean; on the west by the Delaware ...
,
North Dakota North Dakota () is a U.S. state in the Upper Midwest, named after the indigenous Dakota Sioux. North Dakota is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north and by the U.S. states of Minnesota to the east, So ...
,
South Dakota South Dakota (; Sioux: , ) is a U.S. state in the North Central region of the United States. It is also part of the Great Plains. South Dakota is named after the Lakota and Dakota Sioux Native American tribes, who comprise a large porti ...
, and
Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...
, effectively have two-house unicamerals. In these states, districts in the upper house and the lower house are combined into a single constituency, a practice known as nesting. The
U.S. territory In the United States, a territory is any extent of region under the sovereign jurisdiction of the federal government of the United States, including all waters (around islands or continental tracts). The United States asserts sovereign rights for ...
of
Puerto Rico Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and unincorporated ...
held a non-binding referendum in 2005. Voters approved changing its Legislative Assembly to a unicameral body by 456,267 votes in favor (83.7%) versus 88,720 against (16.3%). If both the territory's
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 ...
and Senate had approved by a vote the specific amendments to the Puerto Rico Constitution that are required for the change to a unicameral legislature, another referendum would have been held in the territory to approve such amendments. If those constitutional changes had been approved, Puerto Rico could have switched to a unicameral legislature as early as 2015. On June 9, 2009, the Maine House of Representatives voted to form a unicameral legislature, but the measure did not pass the Senate. Because of legislative gridlock in 2009, former Congressman Rick Lazio, a prospective candidate for governor, has proposed that New York (state), New York adopt unicameralism. The United States as a whole was subject to a unicameral Congress during the years 1781–1788, when the Articles of Confederation were in effect. The Confederate States of America, pursuant to its Provisional Constitution, in effect from February 8, 1861, to February 22, 1862, was governed by a unicameral Congress.


Notes


References

{{Authority control Legislatures Unicameral legislatures,