The Public Procurement Network is an informal European-wide co-operation network in the field of public procurement and was established at a meeting, which took place in Copenhagen on January 31, 2003.
The objective of the network is to strengthen the application and the enforcement of the procurement rules through mutual exchange of experience and benchmarking, and to create a reliable and effective informal co-operation including problem - solving in cross-border cases related to public procurement.
Full membership of the PPN is open to all EU-Member States. Associate membership of the PPN is open to EEA countries, accessing countries and candidate countries committed to applying the EU-rules. Other countries and State-based organisations operating at European level can be invited to participate in the work of the PPN, when appropriate.
The European Commission has the status of observer to the PPN and supports the activities within the Public Procurement Network.

In context of exchange of information and best practices "The comparative Survey on Public Procurement systems across the PPN" can provide useful information on structures and rules in 31 Countries.