The annual adjustment in respect of 2001 may entail the establishment before 31 December 2001 of new weightings with retroactive effect from 1 July 2001. These new weightings could lead to retroactive adjustments to remuneration and pensions (positive or negative) in respect of the period of 2001 for which payments have already been made on the basis of this Regulation. Provisions should therefore be made for the payment of arrears in the event of an upward adjustment as a result of these weightings or for the recovery of sums overpaid in the event of a downward adjustment for the period between the effective date and the date of entry into force of the Council's decision on the annual adjustment in respect of 2001.
