1 . REFERENCES FOR PRELIMINARY RULING - COURT OF JUSTICE - NATIONAL COURTS OR TRIBUNALS - RESPECTIVE JURISDICTION ( EEC TREATY , ART . 177 ) 2 . AGRICULTURE - COMMON ORGANIZATION OF THE MARKET - SUGAR - PRICE FORMATION MACHINERY - EXCLUSIVE COMMUNITY POWERS - INTERVENTION OF MEMBER STATES - PROHIBITION - BREACH - RIGHTS OF INDIVIDUALS ( REGULATION NO 3330/74 OF THE COUNCIL ) 3 . CUSTOMS DUTIES - CHARGES HAVING EQUIVALENT EFFECT - CONCEPT - INTERNAL TAXATION - DISTINCTION ( EEC TREATY , ARTS . 9 , 13 ( 2 ) AND 95 )