Government
Type: Democratic republic.
Independence: September 15, 1821.
Constitution: November 7, 1949.
Branches: Executive--president (head of government and chief of state) elected for one 4-year term, two vice presidents, Cabinet (15 ministers, one of whom also is vice president). Legislative--57-deputy unicameral Legislative Assembly elected at 4-year intervals. Judicial--Supreme Court of Justice (22 magistrates elected by Legislative Assembly for renewable 8-year terms). The offices of the Ombudsman, Comptroller General, and Procurator General assert autonomous oversight of the government.
Subdivisions: Seven provinces, divided into 81 cantons, subdivided into 421 districts.
Political parties: Social Christian Unity Party (PUSC), National Liberation Party (PLN), Citizen's Action Party (PAC), Libertarian Movement Party (PML), Costa Rican Renovation Party (PRC).
Suffrage: Obligatory at 18.

Costa Rica Government
Costa Rica is a democratic republic with a strong system of constitutional checks and balances. Executive responsibilities are vested in a president, who is the country's center of power. There also are two vice presidents and a 15-member cabinet. The president and 57 Legislative Assembly deputies are elected for 4-year terms. A constitutional amendment approved in 1969 limits presidents and deputies to one term, although a deputy may run again for an Assembly seat after sitting out a term.

The electoral process is supervised by an independent Supreme Electoral Tribunal--a commission of three principal magistrates and six alternates selected by the Supreme Court of Justice. Judicial power is exercised by the Supreme Court of Justice, composed of 22 magistrates selected for renewable 8-year terms by the Legislative Assembly, and subsidiary courts. A Constitutional Chamber of the Supreme Court, established in 1989, reviews the constitutionality of legislation and executive decrees and all habeas corpus warrants.

The offices of the Comptroller General of the Republic, the Solicitor General, and the Ombudsman exercise oversight of the government. The Comptroller General's office has a statutory responsibility to scrutinize all but the smallest public sector contracts and strictly enforces procedural requirements.

Governors appointed by the president head the country's seven provinces, but they exercise little power. There are no provincial legislatures. Autonomous state agencies enjoy considerable operational independence; they include the telecommunications and electrical power monopoly, the state petroleum refinery, the nationalized commercial banks, the state insurance monopoly, and the social security agency. Costa Rica has no military and maintains only domestic police and security forces for internal security. A professional Coast Guard was established in 2000.
source: http://www.state.gov