Established in 1974, Dilit International House is an Italian Language School officially authorised by the Italian Ministry of Education. It is part of International House, a well-established world-wide organisation of 120 schools. The quality of the teaching and services provided by the school is guaranteed by its membership of EAQUALS (European Association for Quality Language Services) and ASILS (Associazione Scuole d'Italiano come Lingua Seconda). The school is also a Teacher Training Centre and an Examination Centre for the CELI Examinations of Perugia University and for the CILS Examinations of Siena University.