Originally Posted by
Mary2e
I think they take the biometric reading when you first activate the ticket and then use that reading each time you enter a park again.
FWIW - I don't know if it's really a fingerprint. My husband and I often "test" the machine, since our hands are about the same size. We switch tickets and still get in using our own finger.
I would imagine the reading is erased after the last park closes on the last day of your ticket validity.
Each ticket is matched to your fingerprint for the duration of the ticket (mine are annual). They don't use this for young children. They sometimes turn off the reader when they are busy in order to move the lines along faster.
Cheers,