1. To verify the accuracy or authenticity of a supplier's declaration, the customs authorities may call upon on the exporter to obtain from the supplier an information certificate INF 4, using the form shown in Annex V.
2. The information certificate INF 4 shall be issued by the customs authorities of the Member State in which the supplier is established. The said authorities shall have the right to call for any evidence and to carry out any inspection of the supplier's accounts or any other check that they consider necessary.
3. The customs authorities shall issue the information certificate INF 4 within three months of receipt of the application submitted to them by the suppliers, indicating whether or not the declaration given by the supplier was correct.
4. The completed certificate shall be given to the supplier to forward to the exporter for transmission to the relevant customs authority.
