(4)Regulation (EC) No 139/2004 also allows the undertakings 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 Commission 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.