A passport is a document required to enter Arstotzka (and Obristan). It is the primary identification document, and all entrants should carry one at all times. Passports carry information about the entrants such as name, sex, date of birth and nationality. The passport cover colors vary depending on their country of issue.
Citizens of issuing country may not be permitted (only an issue on days 1, 19, and 25)
Passports in the release version
Papers, Please has seven official passports of real in-game countries and a fake passport issued by "Cobrastan." Passports differ from each other by color, ornaments and the layout of the data page. All passports contain the same information fields.