1. All the competent institutions shall determine entitlement to benefit, under all the legislations of the Member States to which the person concerned has been subject, when a request for award has been submitted, unless the person concerned expressly requests deferment of the award of old-age benefits under the legislation of one or more Member States.
2. If at a given moment the person concerned does not satisfy, or no longer satisfies, the conditions laid down by all the legislations of the Member States to which he/she has been subject, the institutions applying legislation the conditions of which have been satisfied shall not take into account, when performing the calculation in accordance with Article 52(1) (a) or (b), the periods completed under the legislations the conditions of which have not been satisfied, or are no longer satisfied, where this gives rise to a lower amount of benefit.
3. Paragraph 2 shall apply mutatis mutandis when the person concerned has expressly requested deferment of the award of old-age benefits.
4. A new calculation shall be performed automatically as and when the conditions to be fulfilled under the other legislations are satisfied or when a person requests the award of an old-age benefit deferred in accordance with paragraph 1, unless the periods completed under the other legislations have already been taken into account by virtue of paragraph 2 or 3.]