For the purpose of this Regulation and in addition to the definitions laid down in Article 2 of Regulation (EC) No 1071/2009, the following definitions shall apply:

1. (a)

   ‘ERRU (European Registers of Road Transport Undertakings)’ means a system of interconnection of national electronic registers, set up in accordance Article 16(5) of Regulation (EC) No 1071/2009;

2. (b)

   ‘Asynchronous interface’ means a process whereby a message in response to a request is returned on a new HTTP connection;

3. (c)

   ‘Broadcast search’ means a request message from a Member State addressed to all other Member States;

4. (d)

   ‘Central hub’ means the information system enabling the routing of ERRU messages between Member States;

5. (e)

   ‘CPC’ means certificate of professional competence, as referred to in Article 8(8) of Regulation (EC) No 1071/2009;

6. (f)

   ‘Member State of infringement’ means the Member State in which a transport undertaking has committed an infringement;

7. (g)

   ‘Member State of establishment’ means the Member State in which an undertaking is established;

8. (h)

   ‘National system’ means the information system set up in each Member State for the purpose of emitting, processing and responding to ERRU messages;

9. (i)

   ‘Synchronous interface’ means a process whereby a message in response to a request is returned on the same HTTP connection as the one used for the request;

10. (j)

    ‘Requesting Member State’ means the Member State emitting a request or a notification, which is then routed to the responding Member States;

11. (k)

    ‘Responding Member State’ means the Member State to whom the ERRU request or notification is directed.