Identity document
The shape and size of identity cards were standardized in 1985 by ISO/IEC 7810. Some modern identity documents are smart cards including a difficult-to-forge embedded integrated circuit that were standardized in 1988 by ISO/IEC 7816. New technologies allow identity cards to contain biometric information, such as a photograph; face, hand, or iris measurements; or fingerprints. Many countries now issue electronic identity cards.