The type is differentiated as

• Jointly selected operation
• Implemented in two or more countries
• Significantly affecting other member states
• Cooperation between countries in border areas and neighboring countries

This issue deals describes which dimension of transnational cooperation is mentioned in the documents. The kind of transnational dimensions turns out to be almost as variable as the different national topics are. Therefore the full scope of dimensions has to be looked up in the single documents presented in the wiki. A compilation of dimensions according to following groups can be found here:

• Air pollution
• Civil defense
• Ecosystems and biodiversity
• Public services
• Spatial planning
• Transport and logistics
• Tourism potential