(13)Better organised administrative cooperation between Member States would improve the effectiveness of the monitoring of undertakings operating in several Member States and would reduce administrative costs in the future. Electronic registers of undertakings interconnected throughout the Community, which comply with the Community rules on the protection of personal data, would facilitate such cooperation and reduce the costs involved in checks for both undertakings and administrations. National registers already exist in several Member States. Infrastructure has also been set up with a view to promoting interconnection between Member States. A more systematic use of electronic registers could therefore make a significant contribution to reducing the administrative costs of checks and to improving their effectiveness.