Responses to the survey are protected by statistical confidentiality. The General Data Protection Regulation 2016/679 of 27 April 2016 (GDPR) and Law No. 78-17 of 6 January 1978 on information technology, files and civil liberties apply to this survey.

Data will be kept for 10 years from the end of the collection period and archived beyond that time. Their use and access are monitored at all times and limited to the production of statistics or scientific research.