In 1928, the schools of social work in France came together to form a Comite d'Entente des Ecoles de Service Social, and on12th January, 1932, a government degree was signed, which intorduced a State Diploma for social workers, granting the title 'Assistant ou Assistante de Service Social diplome de l'Etat Francais'. Final regulations regarding the curricula, examinations etc. were given on 13th December 1933. Interestingly, this stated that education for social workers would be two years followed by two probationary years; the minimum age for entry was 19 years.
Source: Salomon, Alice (1937) Education for Social Work; a sociological interpretation based on an international survey, Zurich: International Committee of Schools for Social Work. (Available from the University of Liverpool Library.)