To avoid the questions of election legitimacy, election authorities in Peru approved the use of election monitoring.[176] In total, one hundred and fifty observers (ninety-nine in Peru and fifty-one abroad) were approved to observe elections throughout Peru.[176] The origin of the observers were from twenty-two different countries, with thirty-five observers from the Organization of American States, while others were from Argentina, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Mexico, Panama, Paraguay, Spain, Switzerland, the United States, and Uruguay.[176] Observer approval required providing election authorities observation plans; these plans included protocols to inform authorities of crimes, violations of electoral law or any complaints they collected.[176] Observers were then responsible with providing an official, final report to authorities.[176] According to OjoPúblico, "the observers carry out the review of the activities of election day, ranging from the installation of the voting tables, the conditioning of the secret chambers, the conformity of the ballots, the minutes, the amphorae and any other electoral material, to the counting, the counting of the vote and the transfer of the electoral records at the end of the day."[176]