++++ 1 . EEC - LEGISLATIVE POWERS - ASSIGNMENT BY MEMBER STATES IMPLYING WAIVER OF SUCH POWERS - PROHIBITION AGAINST THE ALTERATION OF OR ADDITION TO THE SCOPE OF COMMUNITY REGULATIONS BY MEMBER STATES ( EEC TREATY, ARTICLE 189 ) 2 . AGRICULTURE - COMMON ORGANIZATION OF THE MARKETS - CEREALS - REGULATION NO 19 OF THE COUNCIL OF THE EEC - PROHIBITION AGAINST THE ADOPTION BY MEMBER STATES OF RULES AFFECTING THE SCOPE OF THE REGULATION AND IN PARTICULAR THE DESCRIPTION OF GOODS ( REGULATION NO 19, ARTICLE 23 ) 3 . AGRICULTURE - COMMON ORGANIZATION OF THE MARKETS - COMMUNITY REGULATIONS - DESCRIPTION OF GOODS - UNIFORM SCOPE IN THE COMMON MARKET - RESPECT FOR COMMUNITY JURISDICTION - PROHIBITION AGAINST THE ISSUE BY MEMBER STATES OF BINDING RULES OF INTERPRETATION 4 . EEC TREATY - COMMON PROVISIONS - REGULATIONS - UNOFFICIAL INTERPRETATION BY COMMUNITY ADMINISTRATION - NOT BINDING - UNIFORM AND AUTHENTIC APPLICATION ONLY ENSURED BY FORMAL MEASURES ( EEC TREATY, ARTICLE 189 ) 5 . COMMON CUSTOMS TARIFF - INTERPRETATION OF ONE TARIFF HEADING IN RELATION TO ANOTHER - CRITERIA