1. The supervisory authorities shall, promptly and in any event within two working days following receipt of the notification required under Article 57(1), as well as following the possible subsequent receipt of the information referred to in paragraph 2, acknowledge receipt thereof in writing to the proposed acquirer.

The supervisory authorities shall have a maximum of 60 working days as from the date of the written acknowledgement of receipt of the notification and all documents required by the Member State to be attached to the notification on the basis of the list referred to in Article 59(4) (the assessment period), to carry out the assessment provided for in Article 59(1) (the assessment).

The supervisory authorities shall inform the proposed acquirer of the date of the expiry of the assessment period at the time of acknowledging receipt.

2. The supervisory authorities may, during the assessment period, if necessary, and no later than on the fiftieth working day of the assessment period, request any further information that is necessary to complete the assessment. Such request shall be made in writing and shall specify the additional information needed.