Green infrastructure is not yet fully integrated into national policies and legislation; but gradually, and sometimes implicitly, these requirements are being incorporated into national laws and respective policies, and seem to be becoming more widespread in EU Member States and in other European countries (e.g. Switzerland).
In Italy, initiatives such as the priority given (in some regions) to the reinforcement of existing infrastructure rather than to the construction of new roads or also relatively precise and detailed compensatory measures for road infrastructure are particularly interesting and encouraging.
In order to better take into account the requirements of UE SGI, it would probably be necessary to agree on a broader definition of green infrastructure, integrating ecosystem services, and not only focusing on the biodiversity aspect.
Finally, one of the main problems Member States are facing, is not the lack of EU environmental legislation and policy, but their proper implementation.