1 . TAX PROVISIONS - INTERNAL TAXES - PROVISIONS OF THE TREATY - AIM ( EEC TREATY , ART . 95 ) 2 . TAX PROVISIONS - INTERNAL TAXES - PROHIBITION OF DISCRIMINATION BETWEEN IMPORTED PRODUCTS AND SIMILAR NATIONAL PRODUCTS - SIMILAR PRODUCTS - CONCEPT - INTERPRETATION - CRITERIA ( EEC TREATY , ART . 95 , FIRST PARAGRAPH ) 3 . TAX PROVISIONS - INTERNAL TAXES - TAXES OF SUCH A NATURE AS TO AFFORD INDIRECT PROTECTION TO OTHER PRODUCTS - COMPETING PRODUCTS - CRITERIA ( EEC TREATY , ART . 95 , SECOND PARAGRAPH ) 4 . TAX PROVISIONS - INTERNAL TAXES - GRANT OF TAX BENEFITS TO NATIONAL PRODUCTS - PERMISSIBILITY - CONDITIONS - EXTENSION TO PRODUCTS IMPORTED FROM OTHER MEMBER STATES ( EEC TREATY , ART . 95 ) 5 . TAX PROVISIONS - INTERNAL TAXES - HARMONIZATION OF LAWS - PRELIMINARY CONDITION TO APPLICATION OF ARTICLE 95 OF THE TREATY - IMPOSSIBILITY - PROHIBITION OF DISCRIMINATORY OR PROTECTIVE TAXES - FISCAL HARMONIZATION - RESPECTIVE OBJECTIVES ( EEC TREATY , ARTS . 95 AND 99 )