Voting basics: How ballot signature verification works [View all]
When a Colorado voter votes by mail, they need to sign their ballot envelope for verification by bipartisan teams of election judges.
Election judges compare a ballot signature to a signature the voters county clerk has on file from official documents. If someone registered to vote through the Colorado Division of Motor Vehicles, for example, their ballot signature will be compared to their license signature.
A ballot will be rejected if a team of two election judges from different political parties agree that a voters signature on their ballot doesnt match the one elections officials have on file, or if the signature is missing altogether. The team of two reviews each signature after a single election judge conducts an initial review, and in some cases after a ballot processing machine conducts a review.
Election judges are trained to look for specific issues with a signature to determine its validity.
https://coloradonewsline.com/2024/09/05/voting-basics-how-ballot-signature-verification-works/