Physical format Cards are issued according to the
ISO/IEC 7810 standard using the
ID-1 size format, similar to credit cards. They conform to
ISO/IEC 7816 and have a 3-line machine-readable strip on the back starting with IDBEL.
Cards issued to Belgian citizens and EU/EEA/Swiss citizens Cards issued to Belgian citizens and EU/EEA/Swiss citizens are green. They carry a heading of "BELGIUM" and the type of card (e.g. "IDENTITY CARD" or "EU+ Card"), written in all three national
languages (Dutch, French and German) as well as in English. The remaining fields are bilingual - English in combination with either Dutch, French or German - depending on the official language of the place of residence of the subject. If the place of residence is a
Brussels municipality, the holder may choose between French or Dutch. If the place of residence is a
municipality with language facilities, the holder may choose between French or Dutch, or French or German, depending on the local language facilities.
Cards issued to third country nationals Cards issued to third country nationals are red and blue, in common with the standard EU format. This includes H cards (despite their full name as
European Blue Cards) and M cards. All such cards carry a heading of "BEL" and "TITRE DE SÉJOUR" or "VERBLIJFSTITEL" or "AUFENTHALTSTITEL". The title and all fields are monolingual - in Dutch, French or German - depending on the official language of the place of residence of the subject.
Printed information Cards are printed with the following information relating to the subject: •
photograph of the person's face • names (surname and the first two given names) • sex • nationality •
Belgian National Register number • signature Cards also bear the following information about the card itself: • type of card • card number • place and date of issue (place of issue being the name of the municipality or embassy) • expiry date In addition, cards issued to foreigners contain: • place and date of birth • special observations (e.g. their labour market rights) Historically cards were printed with the holder's residential address, but this is no longer shown on cards issued since 2005. Other possible printed information includes
nobility title (where applicable) and/or marital status (optional).
Digital information Cards issued since 2005 contain a
chip, which includes additional information, including: • two digital certificates (authentication and, for adults, signing) • residential address • up to two
fingerprints (since 2020)
National Register number and card number Cards include two numbers that should not be confused with each other. The
National Register number is issued to the person upon their first registration (i.e. usually at birth for Belgian citizens) and held for life. It comprises 11 digits in the form yy.mm.dd-xxx.cd where yy.mm.dd is the birth date, xxx is a sequential number (odd for males and even for females) and cd a check-digit. The
card number applies only to the card in question and can take several different formats: • Belgian citizens: 12 digits in the form xxx-xxxxxxx-yy where yy is a
check digit calculated as the
remainder of dividing xxxxxxxxxx by 97 (if the remainder is 0, the check number is set to 97) • Third country nationals: nine digits in the form xxxxxxx xx • EU/EEA/Swiss citizens: a letter and nine digits in the form B xxxxxxx xx ==Administration==