INED and INSEE collected large-scale quantitative data for the TeO2 survey in 2019 and 2020 on the social trajectories and experiences of discrimination of immigrants and their descendants born in metropolitan France. More than 27,000 people were interviewed. As with the first TeO survey conducted in 2008-2009, qualitative post-surveys will be conducted taking advantage of the access to TeO2 respondents who have accepted the principle of a re-interview. These qualitative post-surveys will be completed within a maximum of three years after the end of the survey data collection (November 2020). They will each focus on a limited sample of people who have given their agreement during the TeO2 survey to be contacted again.