At national level:

Beyond the institutional legal framework, the committees that give INSEE the right and legitimacy to

collect these data are:

1. The National Council for Statistical Information (CNIS) contributes to the establishment of the official statistics programme for the following year. In particular, it examines the relevance of new projects proposed by INSEE with regard to users' needs, whether they involve a survey, a census, a panel or the use of administrative files. The work focuses on the purpose of the project, its place in the information system and the means of dissemination envisaged. Each operation must meet a need of general interest and not duplicate existing information sources. Following this examination, the CNIS may issue an opinion on the appropriateness of the project.
2. Once the opinion has been issued, the Official Statistics Label Committee ensures that the operation complies with statistical quality criteria. Thus, in the case of a survey project, it analyses the collection and sampling method (sample design, data adjustment method, treatment of non-responses guaranteeing the reliability of the results, ...), the relevance of the questioning and the adaptation of the dissemination to the announced objectives. It also ensures that the survey does not place an excessive burden on the respondents, that consultation has taken place with the partners concerned and that the wishes expressed by the CNIS during the debate on the opportunity to conduct the survey have been taken into account. Following this examination, the Label Committee can issue a compliance opinion.
3. The Families 2025 survey is part of the eight surveys conducted by the Lifeobs social scienc infrastructure, the French observatory of life paths. It is a national collaboration between key institutions: Ined, the project leader, universities, the Progedo research infrastructure, and Insee. Lifeobs, winner of the "Structuring Equipment for Research" call for expressions of interest (EquipEx+), is a research infrastructure aimed at developing a program of longitudinal and innovative surveys on family behaviors.

Intermediate production and research files are made available to some partners.

Survey of general interest and statistical quality, with compulsory nature

2025X002EC