OF ENSURING THAT THE COMMON ORGANIZATION OF THE MARKET IN MILK AND MILK PRODUCTS FUNCTIONS .
2 . IN PURSUING THE VARIOUS AIMS LAID DOWN IN ARTICLE 39 OF THE TREATY, THE COMMUNITY INSTITUTIONS HAVE A PERMANENT DUTY TO RECONCILE THE INDIVIDUAL AIMS SO AS TO OVERCOME ANY CONFLICT BETWEEN THEM . ALTHOUGH THAT DUTY TO RECONCILE MEANS THAT NO SINGLE AIM MAY BE PURSUED IN ISOLATION IN SUCH A WAY AS TO MAKE THE ACHIEVEMENT OF THE OTHERS IMPOSSIBLE, THE COMMUNITY INSTITUTIONS MAY ALLOW ONE OF THEM TEMPORARY PRIORITY IN ORDER TO SATISFY THE DEMANDS OF THE ECONOMIC OR OTHER CONDITIONS IN VIEW OF WHICH THEIR DECISIONS ARE MADE .
IN THOSE CIRCUMSTANCES, THE COMMISSION WAS ENTITLED TO DEVOTE SPECIAL ATTENTION TO ENSURING A REASONABLE INCOME FOR MILK PRODUCERS BY ORGANIZING A CHRISTMAS BUTTER SCHEME SO AS TO SELL BUTTER IN STORAGE AT A REDUCED PRICE . BY FACILITATING THE DISPOSAL OF SURPLUSES CREATED BY THE INTERVENTION MACHINERY AND BY PERMITTING A RENEWAL OF THE BUTTER IN STORAGE, SUCH A SCHEME MAKES IT POSSIBLE TO MAINTAIN THE SYSTEM OF PRODUCTION PRICES WITHOUT CREATING A REAL AND LASTING DISTURBANCE OF THE MARGARINE MARKET .
3 . HAVING REGARD TO THE OBJECTIVE DIFFERENCES WHICH CHARACTERIZE THE LEGAL MACHINERY EMPLOYED AND THE ECONOMIC CONDITIONS ON THE MARKETS IN QUESTION, PRODUCERS OF BUTTER, ON THE ONE HAND, AND PRODUCERS OF FATS AND OIL-BEARING FRUITS AND MARGARINE, ON THE OTHER, ARE NOT IN COMPARABLE POSITIONS . THUS, THE CHRISTMAS BUTTER SCHEME FOR THE SALE OF BUTTER IN STORAGE AT A REDUCED PRICE SET UP BY REGULATION NO 2956/84 WHICH IS ESSENTIAL TO THE FUNCTIONING OF THE COMMON ORGANIZATION OF THE MARKET IN MILK PRODUCTS, CANNOT BE REGARDED AS GIVING RISE TO DISCRIMINATION AGAINST PRODUCERS OF MARGARINE CONTRARY TO THE SECOND SUBPARAGRAPH OF ARTICLE 40 ( 3 ) OF THE TREATY .
4 . BECAUSE IT LED BOTH TO ADDITIONAL SALES OF BUTTER AND TO A BETTER ROTATION AND A CERTAIN RENEWAL OF BUTTER STOCKS, THE CHRISTMAS BUTTER SCHEME SET UP BY REGULATION NO 2956/84 MAY NOT, NOTWITHSTANDING ITS LIMITED EFFECTIVENESS AND HIGH COST FROM THE POINT OF VIEW OF COMMUNITY FINANCES, BE REGARDED AS UNSUITABLE FOR THE PURPOSE OF ACHIEVING THE DESIRED AIMS NOR AS GOING FURTHER THAN WAS NECESSARY TO ACHIEVE THEM . THEREFORE, IT DOES NOT BREACH THE PRINCIPLE OF PROPORTIONALITY .
5 . ALTHOUGH, ACCORDING TO ARTICLE 6 ( 4 ) ( A ) OF REGULATION NO 804/68 ON THE COMMON ORGANIZATION OF THE MARKET IN MILK AND MILK PRODUCTS, THE INTERVENTION SYSTEM IS TO BE SO APPLIED THAT THE COMPETITIVE POSITION OF BUTTER ON THE MARKET IS MAINTAINED, THAT PROVISION DOES NOT MEAN THAT THE COMPETITIVE RELATIONSHIP BETWEEN BUTTER AND OTHER PRODUCTS WHICH ARE PARTIAL SUBSTITUTES FOR IT MAY BE REGARDED AS FIXED AND UNCHANGEABLE . ON THE CONTRARY, HAVING REGARD TO THE IMPORTANCE OF THE PLACE OF BUTTER IN THE COMMON ORGANIZATION OF THE MARKET IN MILK PRODUCTS, THE INSTITUTIONS MUST ENSURE THAT THE COMPETITIVE POSITION OF THAT PRODUCT