Artikel 7

1. Where, having regard to Article 10 of the Convention, the person concerned satisfies the conditions for admission to optional continued insurance in respect of invalidity, old age or death (pensions) under more than one scheme, by virtue of the legislation of a Contracting Party, and has not been compulsorily insured under any of those schemes by virtue of his most recent employment, he shall qualify for admission to optional continued insurance only under the scheme which would have applied if he had followed, under the legislation of that Party, the employment subject to compulsory insurance for pension purposes which he last followed under the legislation of another Contracting Party. However, where the said employment was not subject to compulsory insurance under the legislation of the first Party, or where the nature of that employment cannot be determined, then the competent authority of that Party or such institution as it may designate shall decide the scheme under which the optional insurance may be continued.
2. In order to benefit from the provisions of Article 10 of the Convention, the person concerned shall submit to the institution of the Contracting Party concerned a certificate of the periods of insurance completed under the legislation of any other Contracting Party and also of any periods of residence, after the age of sixteen, under the non-contributory legislation of any other Contracting Party. This certificate shall be issued at the request of the person concerned, or the said institution, by the institution or institutions within whose purview he has completed the periods in question.