In practice, we all know that the identification of significant group entities is not always straightforward, but requires a comprehensive, case-by-case, assessment of various factors, relating especially to the internal structure of the group and the distribution of group assets across countries, as highlighted also in the CEBS home-host guidelines.
Another important factor in further streamlining the supervisory interface for cross-border entities and economising on supervisory resources could be a greater recourse to the cross-border delegation of tasks, and where appropriate, responsibilities.