Are official election results processed by an electronic tabulation system?

Guatemala, International Foundation for Electoral Systems, '2019 General Elections', Frequently Asked Questions, How will votes be counted, tabulated and reported? , accessed 14 August 2019

" The official vote count begins at 6:00 p.m. on Election Day. Votes are counted manually at each of the 21,098 Vote Reception Boards, including 108 in the United States, which each consist of five members, including a president. Poll watchers from political parties along with national and international observers oversee the vote counting process. As part of the process, the political party poll watchers witness, verify and sign the tally sheets submitted to the voting center for official transmission to the Supreme Electoral Tribunal’s (TSE) National Preliminary Results Center. The TSE tabulation center will receive the tally sheets transmitted to them via scan technology. The TSE’s transmission of preliminary results entity expects to announce the first results beginning at 8:00 p.m. on Election Day. "