The National Identification Management System (SNGI) is the repository of identities for the needs of social protection organizations. Created in 1988 by the main pension scheme in France (CNAV – Caisse nationale d’assurance vieillesse), the SNGI processes the civil status and NIR (National Registration Number, better known as the social security number) of Social Security beneficiaries. Over time, it has become the basic reference system, particularly because it allows a NIR to be assigned to individuals born outside France.

Built from the files of insured persons in the CNAV’s general pension scheme, it has been progressively synchronized with the INSEE’s National Register for the Identification of Individuals (RNIPP), and continues to be enriched on an ongoing basis. In addition to the data needed to identify a person, it contains information related to the processing of registration requests. The system integrates functions for consulting and searching for identities as well as for disseminating information. It relies on a powerful identification engine to find an identity from imprecise or even inaccurate information. Given the high stakes for its users and the sensitive nature of the data it contains, the SNGI is highly regulated by law.