Article 12
In Annex VIII, Article 4 is replaced by the following: 'Article 4 An official who having previously completed a period of activity in the service of one of the institutions either as an official or as a member of the temporary staff resumes active employment with a Community institution shall acquire further pension rights. He may request that, for the purpose of calculating his pension rights, the whole of the period of service as an official or a member of the temporary staff for which contributions habe been paid be taken into account, subject to his repaying any sums paid to him pursuant to Article 12 of this Annex or to Article 39 of the conditions of employment of other servants or recieved by him by way of retirement pension, plus compund interest at the rate of 3,5 % per annum. Where the official, being entitled to a retirement pension, does not repay the sums referred to in the first paragraph, a capital sum representing the actuarial equivalent of his retirement pension as at the date on which such pension ceased to be paid to him, plus compound interest at the rate of 3,5 % per annum, shall be paid to him in the form of a deferred retirement pension payable at the age when he ceases to perform his duties. Where an official, on terminating his service, is entitled to a severance grant, this grant shall be reduced by the amount of the payments made under Article 42 of the conditions of employment of other servants; where he is entitled to a retirement pension, his pension rights shall be reduced in proportion to the payments made under that Article.'