++++ 1. Agriculture - Common organization of markets - Milk and milk products - Additional milk levy - Rules concerning transfer of reference quantities upon transfer of part of a holding - Lack of criteria laid down by the Member State concerned - Distribution among the operators concerned in proportion to the areas used for milk production (Article 7(4) of Council Regulation No 857/84; point 2 of first para. of Article 7 of Commission Regulation No 1546/88) 2. Agriculture - Common organization of markets - Milk and milk products - Additional milk levy - Rules concerning transfer of reference quantities upon transfer of part of a holding - Lack of criteria laid down by the Member State concerned - Option for Member States to lay down objective criteria for distribution - "Objective criteria" - Concept (Point 2 of first para. of Article 7 of Commission Regulation No 1546/88)