Do bus tickets have expiration dates?

Yes. The Pierce Transit paper All Day Pass purchased onboard will be issued to you with an expiration date and time printed on the back.

Also, every Pierce Transit All Day Pass and One Ride ticket distributed through an organization has an "ultimate" expiration date printed on the front. It must be used prior to that date. One Ride Tickets are valid only for a single use. Once the One Ride Ticket has been dipped into the farebox you may dispose of the ticket, since it will be expired. Pierce Transit's paper All Day Pass will be activated upon first use, when you dip it into the farebox. Your pass will be returned to you with an expiration date and time printed on the back.