Artikel 18

Any Contracting State may, at the time of signature, ratification, acceptance, approval or accession, reserve the right not to apply this Convention to -
1. the agency of a bank or group of banks in the course of banking transactions;
2. agency in matters of insurance;
3. the acts of a public servant acting in the exercise of his functions as such on behalf of a private person.
No other reservation shall be permitted.
Any Contracting State may also, when notifying an extension of the Convention in accordance with Article 25, make one or more of these reservations, with its effect limited to all or some of the territories mentioned in the extension.
Any Contracting State may at any time withdraw a reservation which it has made; the reservation shall cease to have effect on the first day of the third calendar month after notification of the withdrawal.