1 . TAX PROVISIONS - INTERNAL TAXATION - SYSTEM OF DIFFERENTIAL TAXATION - WHETHER PERMISSIBLE - CONDITIONS - PURSUIT OF OBJECTIVES COMPATIBLE WITH COMMUNITY LAW - ABSENCE OF DISCRIMINATORY OR PROTECTIVE CHARACTER ( EEC TREATY , ART . 95 ) 2 . TAX PROVISIONS - INTERNAL TAXATION - TAXES WHOSE EFFECT IS TO PROTECT DOMESTIC PRODUCTION - COMPETING DOMESTIC AND IMPORTED PRODUCTS - COMPETING PRODUCTS - CRITERIA OF ASSESSMENT ( EEC TREATY , SECOND PARAGRAPH OF ART . 95 ) 3 . TAX PROVISIONS - INTERNAL TAXATION - SYSTEM OF DIFFERENTIAL TAXATION - HIGHER RATE OF TAX BORNE BY PRODUCTS COVERED BY A DESIGNATION OF ORIGIN OR PROVENANCE - NO PROTECTION OF THE DESIGNATION OF ORIGIN OR PROVENANCE OF SIMILAR OR COMPETING NATIONAL PRODUCTS - SYSTEM OF TAXATION NOT PERMISSIBLE ( EEC TREATY , ART . 95 ) 4 . TAX PROVISIONS - INTERNAL TAXATION - SYSTEM OF DIFFERENTIAL TAXATION - HIGHER RATE OF TAX BORNE BY LUXURY PRODUCTS - WHETHER PERMISSIBLE - CONDITIONS ( EEC TREATY , ART . 95 )