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Can a hole be punched in a TWIC in order to hang it on a lanyard?

April 26, 2017hang hole lanyard punched twic

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Can a hole be punched in a TWIC in order to hang it on a lanyard?

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• Punching a hole in a TWIC card will likely break the antenna that resides at the edge of the card (the antenna is used for the contact-less mode of the card when using with access control systems). Punching a hole in a TWIC card should be strongly discouraged since it would affect the usefulness of the card.