The identity card is an attempt on the part of the public transit authorities to link each Carte Orange to one person, preventing multiple people from sharing one Carte Orange. The identity card features a space in which the user must print his or her full name and, in the lower left-hand corner, a space to which the user must affix a small, colour photograph of him or herself. On the back of the card, the user is required to fill out his or her full address. You must present a passport-size photo when purchasing the Carte Orange, and the ticket office worker affixes the photo to the ID card. Photo booths are often located near ticket offices.