If you use low-emission means of transport for most of your journey to and from the host university, such as bus, train, bicycle or carpooling (2 or more people), you can apply for the Green Travel Support and in addition for a Green Top Up.
Ferries and ships are not considered sustainable. Journeys by electric car are only considered sustainable (as with other cars) if they are made in a carpool.
If necessary, up to 6 travel days can be applied for (as of academic year 2024/25) if it is proven in the declaration of honor ("Ehrenwörtliche Erklärung") that there is an actual need. To calculate the travel days, the distance between the home university and the destination is used according to the Distance Calculator of the EU Commission. You will receive an overview during the application process. In principle, the granting of additional travel days, also in case your travel is not sustainable, is decided individually on the basis of need.