Article 2
1. Belgium shall take all necessary measures to recover from the recipients the aid within the meaning of Article 87(1) of the EC Treaty unlawfully made available under the aid scheme referred to in Article 1. 2. Recovery shall be effected without delay and in accordance with the procedures of national law provided that they allow the immediate and effective execution of this Decision. The aid to be recovered shall include interest from the date on which it was made available to the recipients until the date of its recovery. Interest shall be calculated on the basis of the reference rate used for calculating the grant-equivalent of regional aid.