Artikel 15

1. In the relations between an acceding State and a Contracting Party which has not expressed objection to the accession of that State, this Agreement shall come into force on the first day of the second month following that in which expires the six-month period available to that Party, by virtue of Article 14, paragraph 2, to lodge an objection or, with regard to a European State to which Article 14, paragraphe 3, applies, on the first day of the second month following that in which its instrument of ratification is deposited.
2. The Contracting Parties shall give notice, in accordance with the provisions of Article 18, paragraph 1, which of the provisions of subparagraph (a), of subparagraph (b) or of subparagraph (c) of paragraph 1 of Article 6, they have agreed to apply in their relations with one another.
3. If two or more Contracting Parties have not, when this Agreement comes into force in relation to them, concluded an arrangement on the application of the provisions referred to in the preceding paragraph and, as the case may be, an agreement of the type referred to in paragraph 2 of Article 7, the Agreement shall not take effect between those Parties until such arrangements become applicable in their relations with one another.
4. In the cases referred to in the preceding paragraph of this Article, the Contracting Parties concerned shall give notice, in accordance with the provisions of Article 18, paragraph 1, of the date on which this Agreement will take effect between them.