Esther, Don't know if you had your question resolved from earlier or not. I have found the signature backed cards to be only in Missouri where they require you to sign the card because of the $500 betting limit every two hours, and your slot card keeps track of the amount of coinage or chips you have purchased. And you're responsible for your card, no card no betting. You can get another card though if you loose yours. Other states without the limits are only for perks, no need for a signature strip. Hope this helps to answer your question.