++++ 1 . Measures adopted by the institutions - Statement of reasons - Obligation - Scope - Decision following, but going further than, a consistent practice ( EEC Treaty, Art . 190 ) 2 . Agriculture - Common organization of the markets - Milk and milk products - Aid for butter and concentrated butter for use in the manufacture of pastry products, ice-cream and other foodstuffs - Progressive reduction of the maximum amount of aid in response to market developments - Justified management decision ( Commission Regulation No 570/88 ) 3 . Community law - Principles - Protection of legitimate expectations - Limits - Modification of rules governing a common organization of the market - Discretionary power of Community institutions