The Interreg sustainable network will focus on how to support public transport in cross border regions. We get to know more about a recent study and toolbox that show gaps in cross border transport situations, where Interreg night have low hanging fruits to pic. We will also discuss and share examples where Interreg made a difference in the field. Furthermore, we focus on how capitalisation has been carried out within sustainable transport 2014-202. Finally, we discuss joint activities for year 2022.