Employees affiliated to a supplementary pension institution belonging to the Association générale des institutions de retraite des cadres (General Association of Supplementary Pension Institutions for Managerial Staff) are included in the “collège cadre”. For employees affiliated to a supplementary pension institution that is neither part of this association nor of the Association pour le régime de retraite complémentaire des salariés, registration in the collège cadre is based on the socio-professional category as it appears in the social declarations mentioned in article L. 2122-10-3.