BACKGROUND
Colorado adopted all-mail elections through the Voter Access and Modernized Elections Act in 2013; registered voters are automatically mailed a ballot and may also vote in person. Under current law, voters sign their mail ballot envelope, and election officials verify identity by comparing that signature with signatures on file from voter registration and Department of Motor Vehicles records.
If a signature cannot be verified, the ballot is reviewed by two bipartisan election judges. If both judges conclude the signature is unlikely to belong to the voter, officials must notify the voter and give them an opportunity to verify their identity and confirm they submitted the ballot within eight days, or the vote cannot be counted. Amendment 84 would add an identification-number requirement on top of this existing signature-verification process.