more in regions with over 1 million people. These additional advisors are apportioned to provinces in relation to their share of the regional population in the latest census using the D'Hondt method. The candidate who receives the most votes wins within each province. However, if two or more candidates run as a list within a province, the winners are determined using the D'Hondt method. Advisors serve four-year terms and can be reelected indefinitely. Elections take place 15 days after the councilmen take office, and the newly elected advisors are sworn in 60 days after their election. The last election took place on December 21, 2008, and the elected advisors took office on February 19, 2009. In October 2009, the Constitution was modified to allow advisors to be elected directly by universal suffrage. They will serve for four years with the possibility of reelection, and the number of advisors will be proportional to the region's population and area in relation to the country. However, the law regulating regional administrations has not been modified to reflect this change, so the date of the first such election is uncertain. In December 2012, a temporary article was added to the Constitution suspending the election that was scheduled for December 21, 2012, and extending the mandate of the incumbent advisors to March 11, 2014. The same article states that the advisors' first direct election will take place on November 17, 2013, coinciding with the presidential and parliamentary election), as long as the necessary changes to the law are published before July 20, 2013. In February 2018, a new law established the democratic election of regional governors, stating that they will be elected at the same time as mayors, councillors, and regional boards. However, the regional boards will only be elected simultaneously with these offices in October 2024, maintaining the current schedule, which stated that the next regional boards elections will take place in November 2021, along with the presidential and parliamentary elections. Municipal elections Voters directly elect one mayor and a number of councilmen per municipality. Mayors are elected by a simple majority, while councilmen seats (ranging from 6 to 10, depending on the municipality's registered voters) are decided using proportional representation, similar to the D'Hondt method. Since 2004, mayors and councilmen have been elected in separate ballots. According to the Constitution, councilmen have four-year mandates and can be reelected indefinitely. Mayors also have a