29. 6. 84 Official Journal of the European Communities No L 170/41 COMMISSION REGULATION (EEC) No 1813/84 of 28 June 1984 laying down detailed rules for applying the differential amounts for colza, rape and sunflower seed THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regafd to the Treaty establishing the European Economic Community, Having regard to Council Regulation No 136/66/EEC of 22 September 1966 on the common organization of the market in oils and fats('), as last amended by Regulation (EEC) No 1556/84 (), Having regard to Council Regulation (EEC) No 1569/72 of 20 July 1972 laying down special measures for colza, rape and sunflower seed (), as last amended by Regulation (EEC) No 1474/84 (*), and in particular Article 7 thereof, Whereas Regulation (EEC) No 1569/72 provides for the publicatien, as from 1 July 1984, of final subsidies and final refunds, which includes therefore the differential amounts ; whereas the detailed implemen- ting rules laid down in Commission Regulation (EEC) No 2300/73 () must be adapted accordingly ; Whereas the measures provided for in this Regulation are in accordance with the opinion of the Management Committee for Oils and Fats, HAS ADOPTED THIS REGULATION : Article 1 The differential amounts for colza, rape and sunflower seed referred to in Article 1 of Regulation (EEC) No 1569/72 shall comprise the following : (a) a target price corrective; (b) a subsidy or export refund corrective. These components shall be calculated for each month in which the differential ameunts are determined in accordance with Article 2 of the abovementioned Regulation. ‘ * Article 2 In order to determine the final subsidy or final refund to be granted : - () OJ No 172, 30. 9. 1966, p. 3025/66. () O] No L 150, 6. 6. 1984, p. S. () O] No L 167, 25. 7. 1972, p. 9. (9 OJ No L 143, 30. 5. 1984, p. 4. () OJ No L 236, 24. 8. 1973, p. 28. 1. The component of the differential amount calcu- lated as a target price corrective : (a) shall be added to the amounts of the subsidy and of the refund in Member States whose - currency has appreciated ; - (b) shall be deducted from the amounts of the subsidy and of the refund in Member States whose currency has depreciated. 2. The component of the differential amount calcu- lated as a subsidy or export refund corrective : (a) shall be deducted from the amounts of the subsidy and of the refund in Member States whose currency has appreciated ; (b) shall be added to the amounts of the subsidy and of the refund in Member States whose currency has depreciated. Article 3 The period referred to in the second indent of Article 2 (1) (b) of Regulation (EEC) No 1569/72 shall run from the Wednesday of one week to the Tuesday of the following week. Article 4 1.  The spot market rates shall be based on the rates for the ECU estabiished daily by the Commission in terms of the currencies concerned and published in the ‘C’ series of the Official Journal of the European Communities. 2.  The forward exchange rates shall be based on the spot market rates for the ECU calculated daily by the Commission on the basis of information recorded on the exchange markets. 3.  Where, for one or more months, quotations of forward exchange rates are not available, the rates adopted for the previous months or the following months, as the case may be, shall be used. Article 5 1. The target price corrective component and the corrective component of the subsidy or the refund shall be equal to the effect on, respectively, the target price, the subsidy or the refund of the coefficient derived from the percentage referred to in Article 2 (1) of Regulation (EEC) No 1569/72.