The Family Allowances, National Insurance and Industrial Injuries (European Interim Agreement) Order 1959

Article 12

In the event of the denunciation of this Agreement by any of the Contracting Parties—

(a) any right acquired by a person in accordance with its provisions shall be maintained and, in particular, if he has, in accordance with its provisions, acquired the right to receive any benefit under the laws and regulations of one of the Contracting Parties while he is resident in the territory of another, he shall continue to enjoy that right;

(b) subject to any conditions which may be laid down by supplementary agreements concluded by the Contracting Parties concerned for the settlement of any rights then in course of acquisition, the provisions of this Agreement shall continue to apply to insurance periods and equivalent periods completed before the date when the denunciation becomes effective.