Self-Control Exercises on Tariff Restrictions I

Read the paragraph below and fill in the missing words.
The Union shall comprise a customs union which shall cover all trade in goods and which shall involve the prohibition between Member States of customs duties on imports and
and of all charges having equivalent effect, and the adoption of a common customs tariff in their relations with third countries. The provisions of Article 30 and of Chapter 2 of this Title shall apply to products originating in Member States and to products coming from which are in free circulation in Member States. Products coming from a third country shall be considered to be in free in a Member State if the import formalities have been complied with and any customs duties or charges having equivalent effect which are payable have been levied in that Member State, and if they have not benefited from a total or partial drawback of such duties or charges. Customs duties on imports and and charges having equivalent effect shall be prohibited between Member States. This prohibition shall also apply to customs duties of a nature.No Member State shall impose, directly or
, on the products of other Member States any internal taxation of any kind in excess of that imposed directly or on similar domestic products. Furthermore, no Member State shall impose on the products of other Member States any internal taxation of such a nature as to afford protection to other products. Where products are exported to the territory of any Member State, any repayment of internal taxation shall not exceed the internal taxation imposed on them whether directly or .