Unless otherwise provided for in this Regulation or in provisions adopted pursuant thereto, the following shall be prohibited in trade with third countries:
the levying of any charge having equivalent effect to a customs duty;
the application of any quantitative restriction or measure having equivalent effect.
The general rules for interpreting the Combined Nomenclature and the special rules for its application shall apply to the tariff classification of products covered by this Title. The tariff nomenclature resulting from the application of this Regulation shall be included in the Common Customs Tariff.