Colorado Amendment 84: Identification numbers on mail ballots
Colorado · Constitutional amendment · Elections · Statewide decision
Explanation reviewed 2026-10-27. AI-written and checked against linked official evidence; not an election-office summary.
AI-written summary
Would require a signature plus the last four digits of a Social Security or qualifying Colorado ID number for federal and statewide mail ballots. Missing or mismatched information must be corrected within eight days after Election Day, with alternative ID options. In-person ID rules would not change.
What applies now
Mail ballots use signature verification, with a correction process; this additional ID-number requirement does not apply.
If yes / for
Add the mail-ballot ID requirement and correction rules.
If no / against
Keep current mail-ballot signature verification.
Costs and funding
No verified fiscal estimate recorded in this baseline. This does not mean there is no cost.
Timing
Implementation date not independently established in this baseline.
Passage rule
At least 55% of votes cast.