Obstacles to sharing data and information or cooperating between instances across the border.

Obstacles in promoting or implementing the development of cross-border public services (health, education, culture, leisure, etc).

Obstacles related to the recognition of qualifications, the identification of available jobs, the complexity of national tax and access to social security regimes, the language difference, etc.

Obstacles include difficulties in collaborating on topics such as the energy sector, biodiversity preservation, disaster risk management, circular economy, green transports.