Article 3
1. For the purposes of Article 1, proof of status as originating products within the meaning of Article 1 of the basic Regulation shall, in the case of products obtained in one Andean Group country and exported to another Andean Group country, be established by production of a certificate of origin Form A, a specimen of which is given in the Annex to the basic Regulation. This certificate shall be issued by the governmental authorities of the country of export competent to issue certificates of origin for the purposes of the basic Regulation. 2. For the purposes of Article 1, proof of status as originating products within the meaning of that Article shall, in the case of products that have merely remained in one of the Andean Group countries or have undergone there no processing other than as specified in that Article and have been exported from that country to another Andean Group country, be established by production of a certificate as referred to in paragraph 1 issued as provided in that paragraph on the basis of the certificates of origin Form A issued previously.