GeM-TrEx offers the possibility for an interdisciplinary and international professionalisation for gender policy and gender issues in adult education.An international qualification of trainers and experts will be developed: "Train the Gender Trainer & Experts" - learning and teaching between experts of gender research, gender education, Gender Mainstreaming consultancy and organisational development will be united into an integrated training course. The interdisciplinarity of research and education as well as the international character of the training support the process of a certification of gender trainers and experts on European level. This process holds the potential to broaden the spectrum of offers for gender trainings and Gender Mainstreaming on a thematic and sectoral level with the aspects of diversity,empowerment and sustainability