1. The competition authority of a Member State may in its own territory carry out any inspection or other fact-finding measure under its national law on behalf and for the account of the competition authority of another Member State in order to establish whether there has been an infringement of Article 81 or Article 82 of the Treaty. Any exchange and use of the information collected shall be carried out in accordance with Article 12.

2. At the request of the Commission, the competition authorities of the Member States shall undertake the inspections which the Commission considers to be necessary under Article 20(1) or which it has ordered by decision pursuant to Article 20(4). The officials of the competition authorities of the Member States who are responsible for conducting these inspections as well as those authorised or appointed by themshall exercise their powers in accordance with their national law.

If so requested by the Commission or by the competition authority of the Member State in whose territory the inspection is to be conducted, officials and other accompanying persons authorised by the Commission may assist the officials of the authority concerned.