The Service Universitaire des Langues - SUL - welcomes mobile students of different nationalities, helping them to discover and/or perfect their knowledge of modern languages. Multilingualism is an essential part of its activities. Since 1953, the Pôle FLE, based in Aix-en-Provence, has offered a wide range of courses in French as a foreign language at all CEFR levels. Carlam, based in Marseille, offers resources, self-training and certification in modern languages.