Logic and Accuracy testing is performed prior to each election to ensure proper coding of ballots and tabulation of votes for every contest.  

The purpose of Logic and Accuracy Testing (L&A) is to prove the programming of the ballot, and to test each precinct, machine type, each ballot style, and each contest on the ballot. 

In an L&A test, ballots of each style are coded for a mock election and run through the tabulator. The tests check the voting system’s ability to read each ballot style and the accuracy of the tabulator when counting votes.

Across the state, bipartisan teams work together to prepare the machines and ballots and conduct the tests.

After testing, county boards reset the equipment to ensure no L&A test information remains on the system heading into the elections. Voting machines are then sealed and stored in safe/locked locations to prevent any tampering.