A constitutional referendum was held in Bolivia on 25 January 2009, postponed from the initially planned dates of 4 May 2008 and then 7 December 2008. Drafted by the Constituent Assembly in 2007, the new constitution was approved in the referendum according to an exit poll by Ipsos Apoyo for La Razón and ATB, a Bolivian television network. Furthermore, it required early elections to be held on 6 December 2009.
Under President Evo Morales, the Constituent Assembly was elected on 2 July 2006. The referendum should originally have taken place on 6 August 2007, but the Assembly's validity was extended until 14 December 2007. The referendum was important for the Afro-Bolivian population and activists like Marfa Inofuentes Pérez, who lobbied for and were successful in obtaining inclusion of articles recognizing Bolivia's black population and providing legal protections for the minority group on par with other ethnic groups. On 9 December 2007, the Assembly approved the draft and on 14 December, the Assembly officially handed the constitution draft over to the National Congress.
The National Congress adopted the law on 28 February 2008 calling for the referendum on 4 May 2008 even though many opposition members chose to stay away during the vote. A law was also approved and signed by Morales that permitted only Congress to call departmental referendums, thereby barring the departmental referendums on autonomy that had also been called for 4 May.
On 7 March 2008, the National Electoral Court suspended the referendum, along with the opposition's regional referendums, saying that there was not enough time for adequate electoral preparations. Nonetheless, the government of Santa Cruz Department went ahead and held its autonomy referendum as planned, ignoring the Court's interdiction on all referendums. Beni Department and Pando Department held their referendums on 1 June 2008.