Article 51
1. Where the recipient of a supply of goods or services is established within the Community but not in the Member State in which the supply takes place, the VAT and/or excise duty exemption certificate set out in Annex II to this Regulation shall, subject to the explanatory notes set out in the Annex to that certificate, serve to confirm that the transaction qualifies for the exemption under Article 151 of Directive 2006/112/EC.
When making use of that certificate, the Member State in which the recipient of the supply of goods or services is established may decide to use either a common VAT and excise duty exemption certificate or two separate certificates.
2. The certificate referred to in paragraph 1 shall be stamped by the competent authorities of the host Member State. However, if the goods or services are intended for official use, Member States may dispense the recipient from the requirement to have the certificate stamped under such conditions as they may lay down. This dispensation may be withdrawn in the case of abuse.
Member States shall inform the Commission of the contact point designated to identify the services responsible for stamping the certificate and the extent to which they dispense with the requirement to have the certificate stamped. The Commission shall inform the other Member States of the information received from Member States.