Details for Washington: - The signature on on the envelope, not the ballot. You put your ballot into a privacy sleeve and then into an envelope. You seal the e

Details for Washington: - The signature on on the envelope, not the ballot. You put your ballot into a privacy sleeve and then into an envelope. You seal the envelope, sign the envelope, and then mail it. -- The signature has to match (as judged by a human). If it doesn't, they contact you for additional verification. -- The ballots are separated from the signed envelopes and put in a separate bin before they are counted. The counting process has election observers (just like all states do) so I'm sure this procedure is properly followed. - Ballots are supposed to arrive 2 weeks before the election. If you don't get your ballot, you fill out a "vote cancellation form" and they invalidate your missing ballot: https://www.sos.wa.gov/elections/voters/ https://www.sos.wa.gov/elections/voters/ -- This prevents other people from voting for you, but it does require attention on your part. - Additionally, ballots are assigned a random ID with a detachable QR code. The ID is specific to the individual paper ballot, not the voter. Once ballots are opened and counted, this ID will published online so that you can make sure the paper ballot you filled out was counted. -- This doesn't prevent anything, but it does let us know if someone is dumping/replacing ballots. It builds confidence that your vote is actually counted.