[[Chilean Constitution of 1980|Chile's Constitution]] was approved in a September 1980 national plebiscite with 67% of the vote. It entered into force in March 1981. After Pinochet's defeat in the [[1988 Chilean national plebiscite|1988 plebiscite]], the Constitution was reformed and another referendum was held over the reforms in which more than 90% voted in favor. In 2005 President Lagos made several reforms to the Constitution, even changing the Pinochet sign with his. | [[Chilean Constitution of 1980|Chile's Constitution]] was approved in a September 1980 national plebiscite with 67% of the vote. It entered into force in March 1981. After Pinochet's defeat in the [[1988 Chilean national plebiscite|1988 plebiscite]], the Constitution was reformed and another referendum was held over the reforms in which more than 90% voted in favor. In 2005 President Lagos made several reforms to the Constitution, even changing the Pinochet sign with his. |