The International Commission on Civil Status (ICCS), an international intergovernmental organisation, was founded in Amsterdam in September 1948 and recognised in December 1949 by an exchange of letters between Belgium, France, Luxembourg, the Netherlands and Switzerland.
Wishing to define the terms of the exchange of documentation carried out by way of this Commission, the High Contracting Parties signed a Protocol in Bern on 25 September 1950. An additional Protocol signed in Luxembourg on 25 September 1952 then defined the terms for other States to become members of the ICCS.