DukeCards are the property of Duke University. One must carry it at all times while on Duke property and present it upon request to any university official. A mobile DukeCard credential installed on one’s phone is not a suitable substitute for having one’s physical DukeCard. The card is not transferable. Allowing another person to use one’s card or mobile credential, or being in possession of someone else’s card or mobile credential, may result in the confiscation of the card or mobile device, and both individuals may be subject to disciplinary action.