Article 4
Agreement to transmit samples and acknowledgement of receipt 1. The national contact point of the Member State intending to send a sample and the national contact point of the Member State intended to receive a sample shall agree on the transport before the transmission takes place. For this purpose they shall make use of the Sample Transmission Form set out in the Annex. 2. Where transmission of a sample involves transportation through the territory of another Member State (hereinafter referred as "transit Member State"), the national contact point of such a transit Member State shall subsequently be informed of the planned transport by the national contact point of the sending Member State. To that end, each transit Member State shall receive a copy of the duly completed Sample Transmission Form before the transmission begins. 3. The receiving Member State shall acknowledge to the sending Member State the receipt of the sample.