 A U.S. passport card can be regarded an identity card fit for terrestrial international travel, particularly in North America.Driver's licenses are generally not considered travel documents, since they bear no information on nationality and conditions which would lead to refusal of a travel document have generally not been tested.However, in several provinces of Canada and U.S. states, nationals/citizens can — upon payment of an extra fee and the provision of additional information — receive an enhanced driver's license which enables border crossing between Canada and the U.S. by land and sea.