++++ 1 . Common Customs Tariff - Establishment of a tariff and statistical nomenclature for goods - Power of Council to conclude an international convention - Legal basis - Articles 28 and 113 of the Treaty ( EEC Treaty, Arts 28 and 113; Council Decision 87/369 ) 2 . EEC Treaty - Article 235 - Scope 3 . Measures adopted by the institutions - Preparation - Consultation of Parliament - Consultation in the absence of a requirement - Lawfulness