30.4.2004 Official Journal of the European Union L1331 (Acts whose publication is obligatory) COMMISSION REGULATION (EC) No 802/2004 of 7 April 2004 implementing Council Regulation (EC) No 139/2004 on the control of concentrations between undertakings (Text with EEA relevance) THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Com- munity, Having regard to the Agreement on the European Economic Area, Having regard to Council Regulation (EC) No 139/2004 of 20 January 2004 on the control of concentrations between under- takings (EC Merger Regulation) (*), and in particular Article 23(1) thereof, Having regard to Council Regulation (EEC) No 4064/89 of 21 December 1989 on the control of concentrations between undertakings (%), as last amended by Regulation (EC) No 1310/ 97 (), and in particular Article 23 thereof, Having consulted the Advisory Committee, Whereas: (1) Council Regulation (EEC) No 4064/89 of 21 December 1989 on the control of concentrations between under- takings has been recast, with substantial amendments to various provisions of that Regulation. (2)  Commission Regulation (EC) No 447/98 ()of 1 March 1998 on the notifications, time-limits and hearings provided for in Council Regulation (EEC) No 4064/89 must be modified in order to take account of those amendments. For the sake of clarity it should therefore be repealed and replaced by a new regulation. (3)  The Commission has adopted measures concerning the terms of reference of hearing officers in certain competi- tion proceedings. (4)  Regulation (EC) No 139/2004 is based on the principle of compulsory notification of concentrations before they are put into effect. On the one hand, a notification has important legal consequences which are favourable to the parties to the proposed concentration, while, on the other hand, failure to comply with the obligation to notify renders the parties liable to fines and may also 1 () OJ L 24, 29.1.2004, p. 1. () OJ L 395, 30.12.1989, p. 1. () OJ L 180, 9.7.1997, p. 1. (*) OJ L 61, 2.3.1998, p. 1. Regulation as amended by the 2003 Act of Accession. entail civil law disadvantages for them. It is therefore necessary in the interests of legal certainty to define precisely the subject matter and content of the informa- tion to be provided in the notification. It is for the notifying parties to make a full and honest disclosure to the Commission of the facts and circum- stances which are relevant for taking a decision on the notified concentration. Regulation (EC) No 139/2004 also allows the undertak- ings concerned to request, in a reasoned submission, prior to notification, that a concentration fulfilling the requirements of that Regulation be referred to the Commission by one or more Member States, or referred by the Commission to one or more Member States, as the case may be. It is important to provide the Commis- sion and the competent authorities of the Member States concerned with sufficient information, in order to enable them to assess, within a short period of time, whether or not a referral ought to be made. To that end, the reasoned submission requesting the referral should contain certain specific information. In order to simplify and expedite examination of notifi- cations and of reasoned submissions, it is desirable to prescribe that forms be used. Since notification sets in motion legal time-limits pursuant to Regulation (EC) No 139/2004, the condi- tions governing such time-limits and the time when they become effective should also be determined. Rules must be laid down in the interests of legal certainty for calculating the time-limits provided for in Regulation (EC) No 139/2004. In particular, the begin- ning and end of time periods and the circumstances suspending the running of such periods must be deter- mined, with due regard to the requirements resulting from the exceptionally tight legal timeframe available for the proceedings.