- (b) 10 per cent in the case of products coming under the tariff headings mentioned in List C;
- (c) 15 per cent in the case of products coming under the tariff headings mentioned in List D; and
- (d) 25 per cent in the case of products coming under the tariff headings mentioned in List E; where, in respect of such products, the tariff of the Benelux countries contains a duty of not more than 3 per cent, such duty shall, for the purpose of calculating the arithmetical average, be raised to 12 per cent.
4. The duties applicable to products mentioned in List F shall be those laid down therein.
5. The Lists of tariff headings referred to in this Article and in Article 20 shall be set out in Annex I to this Treaty.
Article 20
The duties applicable to the products in List G shall be fixed by means of negotiation between the Member States. Each Member State may add further products to this List up to the limit of 2 per cent of the total value of its imports coming from third countries in the course of the year 1956.
The Commission shall take all appropriate steps in order that such negotiations shall be undertaken before the end of the second year after the date of the entry into force of this Treaty and concluded before the end of the first stage.
If, in the case of certain products, no agreement can be reached within these time-limits, the Council, acting up to the end of the second stage by means of a unanimous vote and subsequently by means of a qualified majority vote on a proposal of the Commission, shall fix the duties under the common customs tariff.
Article 21
1. Any technical difficulties which may arise in the application of Articles 19 and 20 shall be settled, within a period of two years after the date of the entry into force of this Treaty, by directives issued by the Council acting by means of a qualified majority vote on a proposal of the Commission.
2. Before the end of the first stage and, in any case, not later than at the date of the fixing of such duties, the Council, acting by means of a qualified majority vote on a proposal of the Commission, shall decide as to the adjustments required with a view to ensuring the internal harmony of the common customs tariff following the application of the rules laid down in Articles 19 and 20, particular account being taken of the degree of processing undergone by the various goods to which the common tariff applies.