Original Constitution (1830 - 1918)

The 1830 Constitution of Uruguay coming into force

When it became independent on August 25, 1825, the Oriental Republic of Uruguay (República Oriental del Uruguay) drew up its first constitution, which was promulgated on July 18, 1830.This text has been regarded as Uruguay's most technically perfect charter. Heavily influenced by the thinking of the French and American revolutions, it divided the government among the executive, legislative, and judicial powers and established Uruguay as a unitary republic with a centralized form of government. The bicameral General Assembly (Asamblea General) was empowered to elect a president with considerable powers to head the executive branch for a four-year term. The president was given control over all of his ministers of government and was empowered to make decisions with the agreement of at least one of the three ministers recognized by the 1830 constitution.^[1]

Like all of Uruguay's charters since then, the 1830 constitution provided for a General Assembly composed of a Chamber of Senators (Cámara de Senadores), or Senate (Senado), elected nationally, and a Chamber of Representatives (Cámara de Representantes), elected from the departments. Members of the General Assembly were empowered to pass laws but lacked the authority to dismiss the president or his ministers or to issue votes of no confidence. An 1834 amendment, however, provided for juicio político, or impeachment, of the ministers for "unacceptable conduct".^[1]

As established by the 1830 constitution, the Supreme Court of Justice (Suprema Corte de Justicia), and lesser courts, exercised the judicial power. The General Assembly appointed the members of the high court. The latter – with the consent of the Senate in the case of the appellate courts – appointed the members of the lesser courts. The constitution also divided the country into departments, each headed by a governor appointed by the president and each having an advisory body called a Neighbors' Council (Consejo de Vecinos).^[1]

Although the 1830 constitution remained in effect for eighty-seven years, de facto governments violated it repeatedly. In the 1878-90 period, the Blancos and Colorados initiated the framework for a more stable system through understandings called "pacts between the parties." This governing principle, called coparticipation (coparticipación), meaning the sharing of formal political and informal bureaucratic power, has been formally practiced since 1872.^[1]

The anniversary of the 1830 promulgation of this original constitution on July 18 is now a public holiday in Uruguay.

Second Constitution (1918 - 1934)

In 1913 President José Batlle y Ordóñez (1903–07, 1911–15), the father of modern Uruguay, proposed a constitutional reform involving the creation of a Swiss-style collegial executive system to be called the colegiado. A strong opponent of the one-person, powerful presidency, Batlle y Ordóñez believed that a collective executive power would neutralize the dictatorial intentions of political leaders. It met intense opposition, however, not only from the Blancos but also from members of his own Colorado Party. The proposal was defeated in 1916, but Batlle y Ordóñez worked out a deal with a faction of the Blancos whereby a compromise system was provided for in the second constitution, which was approved by a plebiscite on 25 November 1917.^[1]

The history of successive constitutions is one of a lengthy struggle between advocates of the collegial system and those of the presidential system. Although the 1917 constitution worked well during the prosperous time after World War I, recurring conflicts between the president and the colegiado members made the executive power ineffective in coping with the economic and social crises wracking the country. These conflicts eventually led to the presidential coup of 1933. The authorities suspended the constitution and appointed a constituent assembly to draw up a new one.^[1]

Third Constitution (1934 - 1942)

The 1934 constitution abolished the colegiado and transferred its power to the president. Nevertheless, presidential powers remained somewhat limited. The executive power once again was exercised by a president who had to make decisions together with the ministers. The 1934 charter established the Council of Ministers (Consejo de Ministros) as the body in which these decisions were to be made. This council consisted of the president and the cabinet ministers. The constitution required the chief executive to appoint three of the nine cabinet ministers from among the members of the political party that received the second largest number of votes in the presidential election. The General Assembly, for its part, could issue votes of no confidence in cabinet ministers, with the approval of two-thirds of its members.^[1]

The constitution divided the Senate between the Blancos and the Colorados or, as political scientist Martin Weinstein has pointed out, between the Herrerist faction of the Blancos (named after Luis Alberto de Herrera) and the Terrist wing of the Colorados (named after Gabriel Terra; president, 1931–38). The party that garnered the second largest number of votes automatically received 50 percent of the Senate seats. In addition, the 1934 charter empowered the Supreme Court of Justice to rule on the constitutionality of the laws. This system, which lasted eighteen years, further limited the power of the president and his government.^[1]

Fourth Constitution (1942 - 1951)

Uruguay returned to a more democratic system in 1942.^[1]

Fifth Constitution (1951 - 1967)

On 13 July 1951, a formal pact between a fraction of the Colorados and the Herrerist Movement of the Blancos called for a plebiscite on constitutional reform. The plebiscite the following December 16 drew less than half of the 1.1 million voters to the polls, but the collegial system was approved by a small margin.^[1]

A fourth constitution was promulgated on 25 January 1952 as the culmination of an effort to reestablish the colegiado and the plural executive power, the National Council of Government (Consejo Nacional de Gobierno), with six majority-party seats and three minority-party seats. This nine-member colegiado was ineffective because the president lacked control over the ministers and because the majority was seldom united. In the end, the ineffectiveness of these governments caused the public to turn against the colegiado arrangement.^[1]

Sixth Constitution (1967 - 1997)

In the elections of 27 November 1966, nearly 59 percent of Uruguayans voted to amend the 1952 constitution and to reestablish a presidential system of government, thus ending a fifteen-year experiment with the colegiado. The new constitution, which became operative on 15 February 1967, and has remained in effect since then, created a strong one-person presidency, subject to legislative and judicial checks. In free and fair elections, Uruguayans approved the new charter and elected the Colorado Party to power again.^[1]

Current (1997 - present)

The 1967 Constitution is still in effect, though it was amended in 1989, 1994, 1996, and 2004. Though some consider the amendments of 1996 to have created a new constitution, Parliament continues to consider them changes to the Constitution of 1967.

The most important concepts that changed in 1996 were those related to elections. From 1999 onwards, the election cycle starts in June, with primary elections for all the parties, in order to choose single presidential candidates; in October, general elections are held, if no presidential candidate scores an absolute majority, a second round of voting is held in November; and finally, in May of the following year, municipal elections are held in all the Departments.