The international dimension of the university grew significantly during the 1990s. However, its development faced a considerable obstacle in the form of the design and implementation of new training requirements for air traffic controllers. This hampered the university's efforts to develop ties abroad. The ENAC began to take on a more European character by participating in European projects such as EATCHIP (European Air Traffic control Harmonization and Integration Program), and by offering mobility programs for students through the Erasmus or Socrates. Under these programs, the university began to welcome a growing number of foreign students and forged close ties with foreign universities such as the Berlin Institute of Technology and the Technische Universität Darmstadt in Germany, and the University of Tampere in Finland. It was also during this period that ENAC created the "groupement des écoles d'aéronautique" (GEA France, in English French aeronautical universities network) with the ISAE and ENSMA. The three "grandes écoles" of this network, in partnership with the DGAC and French companies like (EADS, Airbus, Thales, Eurocopter, Safran), created in 2007 the "Institut sino-européen d'ingénierie de l'aviation" (Chinese European aviation engineering Institute) of Tianjin which provides Masters and "Mastères Spécialisés" courses for Chinese students. Since 1990, new missions have emerged. Thus, ENAC negotiates new contracts for studies and research abroad. During the 2000s, courses entirely taught in English and activities focused on air navigation were developed. In 2009, the university and its alumni association organized the first edition of the aeronautical literary festival in Toulouse. In December 2010, ENAC becomes an ICAO center for training in aviation security.