1.
Where the contingency arises before the date of entry into force of the implementing Regulation in the territory of the Member State concerned and the claim for pension has not been awarded before that date, such claim shall give rise to a double award, in as much as benefits must be granted, pursuant to such contingency, for a period prior to that date:
(a)
for the period prior to the date of entry into force of the implementing Regulation in the territory of the Member State concerned, in accordance with Regulation (EEC) No 1408/71, or with agreements in force between the Member States concerned;
(b)
for the period commencing on the date of entry into force of the implementing Regulation in the territory of the Member State concerned, in accordance with the basic Regulation.
However, if the amount calculated pursuant to the provisions referred to under point (a) is greater than that calculated pursuant to the provisions referred to under point (b), the person concerned shall continue to be entitled to the amount calculated pursuant to the provisions referred to under point (a).
2. A claim for invalidity, old age or survivors’ benefits submitted to an institution of a Member State from the date of entry into force of the implementing Regulation in the territory of the Member State concerned shall automatically necessitate the reassessment of the benefits which have been awarded for the same contingency prior to that date by the institution or institutions of one or more Member States, in accordance with the basic Regulation; such reassessment may not give rise to any reduction in the amount of the benefit awarded.