Artikel 17

1. Any State may, at the time of signature or when depositing its instrument of ratification, acceptance, approval or accession, specify the territories to which this Convention shall apply.
2. Any State may, when depositing its instrument of ratification, acceptance, approval or accession or at any later date, by declaration addressed to the Secretary General of the Council of Europe, extend this Convention to any other territory or territories specified in the declaration and for whose international relations it is responsible or on whose behalf it is authorised to give undertakings.
3. Any declaration made in pursuance of the preceding paragraph may, in respect of any territory mentioned in such declaration, be withdrawn. Such withdrawal shall take effect six months after the date of receipt by the Secretary General of the Council of Europe of the declaration of withdrawal.