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

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 tricamerali ...

(

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 cultu ...

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 or the French States-General). Sometimes, as in New Zealand 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 = Kingdom of Denmark , established ...

, unicameralism comes about through the abolition of one of two bicameral chambers, or, as in Sweden, 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 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 the ...

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 dire ...

. 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 states are currently unicameral. The People's Republic of China 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, 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 south ...

and territories of Guam 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. C ...

in the United States, the Chinese special administrative regions 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 Delta ...

and Macao, the Australian 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 , established_ ...

as well as the Northern Territory 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, 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 total ...

, 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. U ...

, all of the Spanish autonomous communities, 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 Continent ...

, most of the

states and union territories of India India is a federal union comprising 28 states and 8 union territories, with a total of 36 entities. The states and union territories are further subdivided into districts and smaller administrative divisions. History Pre-indep ...

, and all of the

states of Brazil The federative units of Brazil ( pt, unidades federativas do Brasil) are subnational entities with a certain degree of autonomy (self-government, self-regulation and self-collection) and endowed with their own government and constitution, which ...

. In the United Kingdom, the devolved

Scottish Parliament The Scottish Parliament ( gd, Pàrlamaid na h-Alba ; sco, Scots Pairlament) is the devolved, unicameral legislature of Scotland. Located in the Holyrood area of the capital city, Edinburgh, it is frequently referred to by the metonym Holy ...

, the Senedd Cymru, the

Northern Ireland Assembly sco-ulster, Norlin Airlan Assemblie , legislature = Seventh Assembly , coa_pic = File:NI_Assembly.svg , coa_res = 250px , house_type = Unicameral , house1 = , leader1_type = ...

, and the London Assembly are also unicameral.

National (UN member states and observers)

Federal

* Assembly of the Union 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 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 of the Federated States of Micronesia * National Assembly 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 of Venezuela

Unitary

=Africa

= * National Assembly of Angola * National Assembly of Benin * National Assembly of Botswana * National Assembly of Burkina Faso * National Assembly of Cape Verde * National Assembly of the Central African Republic * National Assembly of Chad * National Assembly of Djibouti * National Assembly of Eritrea * National Assembly of The Gambia * Parliament of Ghana * National Assembly 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 ca ...

of Libya * National Assembly of Malawi * Majlis of Maldives * National Assembly of Mali * Parliament of Mauritania * National Assembly of Mauritius * Assembly of the Republic of Mozambique * National Assembly of Niger * National Assembly of São Tomé and Príncipe * National Assembly of Senegal * National Assembly of Seychelles * Parliament of Sierra Leone * National Assembly of Tanzania * National Assembly of Togo * National Assembly of Tunisia * Parliament of Uganda * National Assembly of Zambia

=Asia

= * Leadership Council of Afghanistan * National Assembly of Armenia * National Assembly of Azerbaijan * Jatiya Sangsad of Bangladesh * Legislative Council of Brunei * National People's Congress 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. T ...

of East Timor * Parliament of Georgia *

Islamic Consultative Assembly The Islamic Consultative Assembly ( fa, مجلس شورای اسلامی, Majles-e Showrā-ye Eslāmī), also called the Iranian Parliament, the Iranian Majles (Arabicised spelling Majlis) or ICA, is the national legislative body of Iran. The Pa ...

of Iran * Knesset of Israel *

Supreme People's Assembly The Supreme People's Assembly (SPA; ) is the unicameral legislature of the Democratic People's Republic of Korea (DPRK), commonly known as North Korea. It consists of one deputy from each of the DPRK's 687 constituencies, elected to five-year ...

of the Democratic People's Republic of Korea (North Korea) * National Assembly of the Republic of Korea (South Korea) * National Assembly of Kuwait * Supreme Council of Kyrgyzstan * National Assembly of Laos * Parliament 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 ti ...

) * Parliament of Singapore * Parliament of Sri Lanka * Parliament of Syria * Grand National Assembly of Turkey * National Assembly of Vietnam

=Europe

= * Kuvendi of Albania * National Assembly 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 of Denmark * Riigikogu of Estonia * Parliament of Finland * Parliament of Greece * National Assembly 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 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 popular ...

of Latvia * Landtag 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 The chamber of deputies is the lower house in many bicameral legislatures and the sole house in some unicameral legislatures. Description Historically, French Chamber of Deputies was the lower house of the French Parliament during the Bourbon R ...

of Luxembourg * Parliament of Malta * Parliament of Moldova * National Council of Monaco * Parliament 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 represent ...

of North Macedonia *

Storting 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 ...

of Norway * Assembly of the Republic of Portugal * Grand and General Council of San Marino * National Assembly 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 gover ...

of Dominica * Legislative Assembly of El Salvador * Congress of Guatemala * National Congress of Honduras * National Assembly of Nicaragua * National Assembly of Panama *

of Saint Vincent and the Grenadines

=Oceania

= * Parliament of the Cook Islands * Parliament of Fiji *

of Kiribati * Legislature of the Marshall Islands * Parliament of Nauru * Parliament of New Zealand *

of Niue *

of Papua New Guinea * Legislative Assembly of Samoa *

of Solomon Islands * Legislative Assembly of Tonga * Parliament of Tuvalu * Parliament of Vanuatu

=South America

= * National Assembly of Ecuador * National Assembly of Guyana * Congress of the Republic of Peru * National Assembly of Suriname

Territorial

of the British Virgin Islands * Legislative Assembly of the Cayman Islands * Legislative Assembly of the Falkland Islands * The Løgting of the Faroe Islands * Parliament 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 of Guam * Legislative Council of Hong Kong * Legislative Assembly of Macao *

of Tobago * Legislature of the U.S. Virgin Islands

State parliaments with limited recognition

* People's Assembly of Abkhazia * National Assembly of the Republic of Artsakh *

of Kosovo * Assembly of the Republic of Northern Cyprus * National Council of the Sahrawi Arab Democratic Republic * Parliament 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 Landtage 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 outs ...

in Nepal * All legislatures of the provinces and territories in Pakistan * The legislature 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 A council is a group of people who come together to consult, deliberate, or make decisions. A council may function as a legislature, especially at a town, city or county/shire level, but most legislative bodies at the state/provincial or natio ...

of the District of Columbia in the United States * Parliament 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 an ...

of Australia (but not the other states) * Provincial legislatures of the

of South Africa * Narodna skupština of Republika Srpska Legislaturas provinciales de Argentina

* 15 of the

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 int ...

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 t ...

Chhattisgarh Chhattisgarh (, ) is a landlocked state in Central India. It is the ninth largest state by area, and with a population of roughly 30 million, the seventeenth most populous. It borders seven states – Uttar Pradesh to the north, Madhya Prade ...

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, Himachal Pradesh,

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 . It ...

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 Cana ...

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 second l ...

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 Mya ...

, Meghalaya, Mizoram, Nagaland, Odisha,

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 ...

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 si ...

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 Sili ...

Tamil Nadu Tamil Nadu (; , TN) is a state in southern India. It is the tenth largest Indian state by area and the sixth largest by population. Its capital and largest city is Chennai. Tamil Nadu is the home of the Tamil people, whose Tamil language— ...

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 east ...

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; 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 Pondicherry (), now known as Puducherry ( French: Pondichéry ʊdʊˈtʃɛɹi(listen), on-dicherry, is the capital and the mo ...

Devolved governments

* Iraqi Kurdistan Parliament *

Senedd 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 ...

(Welsh Parliament) * Parliaments of the autonomous communities of Spain * All regional councils of France * Bangsamoro Parliament * 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 ...

and Second Protectorate Parliament of the Kingdom of England, regulated by the Instrument of Government (dissolved) * Parliament of the Kingdom of Scotland 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 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 A ...

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 Carlism, Carlists, and The Rebellion ( es, La Rebeli ...

* The Parliament of Uzbekistan 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 chambe ...

. * National Assembly 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 ...

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 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 of

Ivory Coast Ivory Coast, also known as Côte d'Ivoire, officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital is Yamoussoukro, in the centre of the country, while its largest city and economic centre is ...

was the country's unicameral legislature before becoming the lower house of the bicameral Parliament of Ivory Coast in 2016. * Central National Committee 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 ...

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 Guinea. ...

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 ...

and the Liberal democracy era.

Subnational

* General Assembly 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 th ...

until 1789 * General Assembly of

Pennsylvania Pennsylvania (; (Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions of the United States. It borders Delaware to ...

until 1790 * General Assembly 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 the n ...

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 s ...

community in Mandatory Palestine 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 ...

is bicameral, the country experienced unicameralism in 1898 and 1899 (during the First Philippine Republic), 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, which functioned also a unicameral legislature within a

(1973-1981) and a

semi-presidential system A semi-presidential republic, is a republic in which a president exists alongside a prime minister and a cabinet, with the latter two being responsible to the legislature of the state. It differs from a parliamentary republic in that it ha ...

(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 shift to a unicameral parliament was included in the proposals of the constitutional commission created by President Gloria Macapagal Arroyo. 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 Representativ ...

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 Sangguniang Panlalawigan (abbreviated as SP; ), commonly known as the Provincial Board, are the legislatures in Philippine provinces. They are the legislative branches of the provinces, and their powers and responsibilities are defined by the Loca ...

(Provincial Boards),

Sangguniang Panlungsod The Sangguniang Panlungsod (SP) is the local legislative body of a city governments in the Philippines. The name of the legislative body comes from the Tagalog words "''sanggunian''" ("council") – ultimately from the rootword "''sangguni''" ( ...

(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 T ...

( Barangay 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

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 R ...

and New Hampshire 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 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 U.S. state, state in the Southwestern United States. It is the list of U.S. states and territories by area, 6th largest and the list of U.S. states and territories by population, 14 ...

, Idaho,

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 ...

, North Dakota,

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 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

and

Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...

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 The Maine House of Representatives is the lower house of the Maine Legislature. The House consists of 151 voting members and three nonvoting members. The voting members represent an equal number of districts across the state and are elected via p ...

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 New York most commonly refers to: * New York City, the most populous city in the United States, located in the state of New York * New York (state), a state in the northeastern United States New York may also refer to: Film and television * '' ...

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