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Logic and Accuracy Test (LAT) – 2026 General Election

September 29 at 10:00 am - 5:00 pm
People at a table are looking at different election ballots. The image also features the Elections logo and text that reads Logic and Accuracy Test

The Boulder County Elections Division will conduct a Logic and Accuracy Test (LAT) on Tuesday, Sept. 29, on ballots and equipment to be used for the 2026 General Election.

The test ensures voting system equipment properly tabulates votes. Each type of ballot and all ballot styles will be tested to verify they are properly printed and read by the scanning equipment. The test will also confirm that scanning equipment settings are properly calibrated for the ballots. This event is to the public but RSVP is requested due to space limitations.

Testing will take place in the Ballot Processing Center at 1750 33rd Street in Boulder. Testing will begin at 10 a.m. and will take until at least 5 p.m. You do not have to stay for the full day. Additionally, the testing may continue into Wednesday, Sept 30 given the length of the ballot.

After testing concludes, results will be available on our website.

Email Vote@BoulderCounty.gov or call 303-413-7740 if you have any questions about the LAT.

Complete this form to RSVP by 5 p.m. Monday, Sept. 28

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