1 . REFERENCE FOR A PRELIMINARY RULING - REFERENCE TO THE COURT - DUTY OF NATIONAL COURTS TO SUPPLY ADEQUATE INFORMATION - LIMITS ( EEC TREATY , ART . 177 ) 2 . REFERENCES FOR A PRELIMINARY RULING - JURISDICTION OF THE COURT - LIMITS ( EEC TREATY , ART . 177 ) 3 . FREE MOVEMENT OF GOODS - QUANTITATIVE RESTRICTIONS ON EXPORTS - MEASURES HAVING AN EQUIVALENT EFFECT - NATIONAL MINIMUM STANDARDS FOR ENCLOSURES FOR FATTING CALVES - PERMISSIBILITY ( EEC TREATY , ART . 34 ) 4 . AGRICULTURE - COMMON ORGANIZATION OF THE MARKETS - DISCRIMINATION BETWEEN CONSUMERS AND PRODUCERS - PROHIBITION - SCOPE - CONDITIONS OF PRODUCTION FIXED BY NATIONAL RULES WHICH ARE GENERAL IN CHARACTER AND INTENDED TO ATTAIN OBJECTIVES OTHER THAN THOSE OF THE COMMON ORGANIZATION - CONDITIONS NOT INCLUDED IN THE PROHIBITION ( EEC TREATY , ART . 40 ( 3 )) 5 . FREE MOVEMENT OF GOODS - AGRICULTURE - COMMON ORGANIZATION OF THE MARKETS - NATIONAL MINIMUM STANDARDS FOR ENCLOSURES FOR FATTING CALVES - PERMISSIBILITY