Article 4
1. Within two months following notification of this Decision, Belgium shall submit the following information: (a) documentation relating to the aid referred to in Article 1 showing the total amount of aid related to the projects mentioned in Article 2. The information shall be provided using the questionnaire attached in Annex I to this Decision; (b) the total amount to be recovered (principal and interest); (c) a detailed description of the measures already taken or planned to comply with this decision; (d) documentation demonstrating that the recipient has been ordered to repay the aid. 2. Belgium shall keep the Commission informed of the progress of the national measures taken to implement this Decision until recovery of the aid referred to in Article 1 has been completed. It shall immediately submit, upon request by the Commission, information on the measures already taken and planned to comply with this Decision. It shall also provide detailed information concerning the amounts of aid and interest already recovered from the recipient.