++++ 1 . Accession of new Member States to the Communities - Spain - Provisions of secondary legislation amended by the Act of Accession - Later amendment - Procedure ( Act of Accession of 1985, Art . 8 ) 2 . Agriculture - Common agricultural policy - Objectives - Reconciliation - Power of assessment of the institutions - Stabilization of the market in milk products - Reduction of the quantities of milk exempt from the additional levy ( EEC Treaty, Art . 39 ( 1 ) ( b ); Council Regulations Nos 1335/86 and 1343/86 ) 3 . Community law - Principles - Protection of legitimate expectations - Limits - Application of new rules to the future effects of situations arising during the period of application of previous rules - Amendment of agricultural rules previously amended by the Act of Accession of a State 4 . Agriculture - Common organization of the markets - Discrimination between producers or consumers - Prohibition - Scope - Measures to reduce milk production - Concerted effort required of all producers - Application to Spain ( EEC Treaty, Art . 40 ( 3 ), second subparagraph ) 5 . Agriculture - Common agricultural policy - Regulations - Procedure for drawing them up - Distinction between basic regulations and implementing regulations - Implementing regulation adopted in accordance with the criteria and the procedure laid down by the basic regulation - Lawfulness ( EEC Treaty, Art . 40 ( 2 ), third subparagraph )