Identity document
Other forms of officially accepted identification include the driver's license and the birth certificate. However, these are accepted only in limited circumstances and cannot take the place of the ID Card in most cases. The ID Card is mandatory for dealing with government institutions, banks or currency exchange shops. A valid passport may also be accepted, but usually only for foreigners.
EIDAS
eIDAS has as minimum identity concept, the name and birth date. But in order to access more sensitive information, some kind of certification is needed that identity numbers issued by two countries refer to the same person.