24, 12. 91 Official Journal of the European Communities No L 356/17 COUNCIL REGULATION (EEC) No 3766/91 of 12 December 1991 establishing a support system for producers of soya beans, rape seed and colza seed and sunflower seed THE COUNCIL OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, and in particular Articles 42 and 43 thereof, Having regard to the proposal from the Commission ('), Having regard to the opinion of the European Par- liament (3, Having regard to the opinion of the Economic and Social Committee (%), Whereas a new support system for the producers of soya beans, rape seed and sunflower seed harvested within the Community, has to be established ; whereas the best way to achieve this objective is to provide for a direct payment for producers who sow and intend to harvest such products ; whereas this system shall be applied with effect from those plantings intended for harvest in 1992 thereby superseding the provisions relating to oilseeds aids contained in Regulation No 136/66/EEC (*) and Regula- tion (EEC) No 1491/85(); Whereas such direct payments should reflect the specific structural characteristics that influence yields and that the drawing up of a regionalization plan based on objective criteria should be left to the Member States ; whereas the regionalization plans must be consistent with the average yields of each region achieved in a given period ; whereas a specific procedure should be provided in order to examine these plans on the Community level ; Whereas in order to calculate a direct payment it is neces- sary to establish a projected reference price, a Community reference amount, the calculation method and appropriate corrective measures ; () OJ No C 255, 1. 10. 1991, p. 8. (3) Opinion delivered on 9 December 1991 (not yet published in the Official Journal). (%) Opinion delivered on 31. 10. 1991 (not yet published in the Official Journal). (¥) Regulation No 136/66/EEC of the Council of 22 September 1966 on the establishment of a common organization of the market in oils and fats (O] No 172, 30. 9. 1966, p. 3025/66), as last amended by Regulation (EEC) No 1720/91 (OJ No L 162, 26. 6. 1991, p. 27). (°) Council Regulatlon (EEC) No 1491/85 of 23 May 1985 laying down special measures in respect of soya beans (O] No L 151, 10. 6. 1985, p. 15) as last amended by Regulation (EEC) No 1724/91 (OJ No L 162, 26. 6. 1991, p. 35). Whereas rules must be established in order to take into account the specific situation in Spain and Portugal, including the different rates of progress towards integra- tion as foreseen in the 1985 Act of Accession ; Whereas as long as an integrated approach to support for the producers of arable crops as proposed by the Commission is not applied, it seems appropriate to ensure a system of maximum guaranteed areas; Whereas a quality policy for rape seed is required ; Whereas the Member States should enact appropriate measures in order to ensure the respect of Community legislation concerning oil-seeds ; Whereas it is necessary to provide for transitional measures, in particular to preserve the acquired rights of operators holding stocks of oil-seeds on 30 June 1992, HAS ADOPTED THIS REGULATION : Article 1 1.  This Regulation establishes a support system for producers of soya beans, rape seed and colza seed and sunflower seed. 2. The system referred to in paragraph 1 shall be applied with effect from those plantings intended for harvest in 1992 thereby superseding the provisions rela- ting to oil-seeds aids contained in Regulation No 136/ 66/EEC and Regulation (EEC) No 1491/85. 3. The marketing year for the products listed in para- graph 1 shall run from 1 July to 30 June. Article 2 1. Each Member State shall establish a regionalization plan setting out the criteria for the establishment of sepa- rate production regions. The criteria used must be appro- priate, objective and provide the necessary flexibility for the recognition of distinctive homogeneous zones of a minimum size and allow for specific structural charac- teristics that influence yields such as soil fertility, inclu- ding, where appropriate, due differentiation between irri- gated and non-irrigated land. 2. For each production region, the Member State shall give details of the areas and yields of cereals and, whenever possible, oil-seeds produced in that region during the five-year period 1986/87 to 1990/91. An