In Missouri, the Code of State Regulations states that election authorities must do a post-test to be sure ballots are tabulated correctly before results are certified. Before each election, bipartisan teams conduct public logic and accuracy testing of the accessible voting equipment used to mark ballots and the digital scan voting equipment used to tabulate ballots, said Greene County Clerk Shane Schoeller. After an election, those tests are done again. But the manual recounts are done as well.