Artikel 72

1. In order to benefit from the provisions of Article 51, paragraph 1 or 2, of the Convention, the person concerned shall submit to the competent institution a certificate setting out the periods of insurance, employment or other occupational activity, completed under the legislation of the Contracting Party to which he was previously last subject, and he shall supply any additional information required under the legislation applied by that institution.
2. The certificate referred to in the preceding paragraph shall be issued, at the request of the person concerned, either by the institution, competent in relation to unemployment, of the Contracting Party to whose legislation he was previously last subject, or by another institution designated by the competent authority of that Party. If the person concerned does not submit such a certificate, the competent institution shall apply for it to one of these institutions, unless the institution competent in relation to sickness can send a copy of the certificate provided for in Article 16, paragraph 1, of this Agreement.
3. Where it is necessary to take into account periods of insurance, employment or other occupational activity previously completed under the legislation of any other Contracting Party in order to satisfy the conditions prescribed by the legislation of the competent State, the provisions of the preceding paragraphs of this Article shall apply, mutatis mutandis.