Navigation path

Policy areas
Who is in charge?
Competition and you


Contacts > Antitrust and general correspondence

In its efforts "towards the e-Commission", the European Commission encourages use of electronic communication. Correspondents in antitrust and cartel cases are asked to submit documents as electronic files, and preferably by electronic means.

Electronic submissions:

Please follow the Recommendations for the Use of Electronic Document Submissions in Antitrust and Cartel Case Proceedings.

If, nevertheless, you want to send paper documents, please respect following rules :
- No bound documents, stapled documents, no cardboard dividers, no double-sided pages
- Format: only A4 weighing less than 120 gr/m2
The Registry reserves the right to request electronic copies for voluminous paper documents.

In all your correspondence, please specify the name of the case and the case number.

All correspondence relating to a case must be sent to the Registry, even when addressed to a specific Directorate or Unit within DG Competition.

Antitrust and General Registry
Email - AT Registry DG COMPETITION:
Postal address - AT Registry DG COMPETITION:
European Commission
Directorate-General for Competition
For the attention of the Antitrust Registry
1049 Bruxelles/Brussel
Delivery by hand – Central Mail Service – Av. du Bourget. Contact details:
European Commission
DG Competition
For the attention of the Antitrust and General Registry
Avenue du Bourget / Bourgetlaan 1
1140 Evere

(every week-day from 7.00 a.m. to 5.30 p.m.)
Central mail Phone :+322 29 93299
Email :
Opening hours stay unchanged before or during CE holidays.

If required, the Commission's Central Mail Service in the Avenue du Bourget will issue a delivery receipt. Every hand delivered mail (express mail services, couriers,...) and 'registered letter' will be registered in the Central mail service and will be delivered to DG Competition.

Telephone - AT Registry DG COMPETITION:

+32 2 299 32 32

+32 2 295.01.28



The Commission encourages citizens and firms to inform about suspected infringements of competition rules. There are two ways to do this.

If you are directly affected by the practice which you suspect restricts competition and are able to provide specific information, you may want to lodge a formal complaint, which must fulfil certain requirements. The complaint form (“Form C”) is available on the Commission Regulation (EC) No 773/2004 of 7 April 2004 relating to the conduct of proceedings by the Commission pursuant to Articles 81 and 82 of the EC Treaty [1]. Official Journal L 123, 27.04.2004, p.18-24 (see the form on the last page “Annex”).

Information on how the Commission handles complaints is available on the Commission Notice on the handling of complaints by the Commission under Articles 81 and 82 of the EC Treaty [1] (Official Journal C 115, 9.5.2008, p. 88–89). A summary of this notice is available here.

[1]: With effect from 1 December 2009, Articles 81 and 82 of the EC Treaty have become Articles 101 and 102, respectively, of the Treaty on the Functioning of the European Union ("TFEU"). The two sets of provisions are, in substance, identical. For the purposes of this Decision, references to Articles 101 and 102 of the TFEU should be understood as references to Articles 81 and 82, respectively, of the EC Treaty when where appropriate.

The other way is the provision of market information that does not have to comply with the same requirements. You can report your concerns by e-mail to Please indicate your name and address, identify the firms and products concerned and describe the practice you have observed. This will help the Commission to detect problems in the market and be the starting point for an investigation. We invite you to read our e-services privacy policy before contacting us. You can also send your complaint by post: European Commission, Competition DG, B - 1049 Brussels.

If the situation you have encountered is specific and limited to the country or the area in which you live, or involves no more than three member States you may want to contact a national competition authority. The competition authorities of all EU Member States now apply the same competition rules as the European Commission and very often they are well placed to deal with your problem. If you think that a larger number of Member States are concerned, you may primarily chose to contact the European Commission. If you are not sure about the scope of the problem, do not hesitate to contat either the European Commission or the national competition authority because the authorities cooperate among them and will allocate the case as appropriate.

Contacts in the EU Member States:

This page contains links to the National Competition Authorities members of the European Competition Network.


back to Contacts