1 . FREE CIRCULATION OF GOODS - CUSTOMS DUTIES - CHARGES HAVING AN EQUIVALENT EFFECT - INTERNAL TAXATION - PAYMENT FOR SERVICES RENDERED - MEANING - CRITERIA FOR DISTINGUISHING ( EEC TREATY , ARTS 9 , 12 , 13 , 16 AND 95 ) 2 . TAX PROVISIONS - INTERNAL TAXATION - MEANING - CHARGES IMPOSED ON IMPORTED PRODUCTS IN THE ABSENCE OF IDENTICAL OR SIMILAR NATIONAL PRODUCTS - INCLUSION - CONDITIONS - CHARGE LEVIED ON OBJECTIVELY DETERMINED CATEGORIES OF PRODUCTS - MEANING OF ' ' CATEGORY OF PRODUCTS ' ' ( EEC TREATY , ARTS 9 , 12 AND 95 ) 3 . TAX PROVISIONS - INTERNAL TAXATION - MEANING - CHARGES FOR HEALTH INSPECTION PAYABLE BY THE IMPORTER - INCLUSION - CRITERIA - DISTINCTION BETWEEN GENERAL INSPECTIONS AND SO-CALLED ' ' SPECIAL ' ' INSPECTIONS BASED UPON NATIONAL LEGISLATION - NOT A CONCLUSIVE CRITERION ( EEC TREATY , ART . 95 )