Artikel 19

1. Any State may, at the time of signing, ratifying, or acceding to, this Agreement, declare that it does not consider itself bound by article 18, paragraphs 2 and 3 hereof. The other Contracting Parties shall not be bound by the said paragraphs with respect to any Contracting Party which has entered such a reservation.
2. If at the time of depositing its instrument of ratification or accession a State enters a reservation other than that provided for in paragraph 1 of this article, the Secretary-General of the United Nations shall communicate the reservation to the States which have previously deposited their instruments of ratification or accession and have not since denounced this Agreement. The reservation shall be deemed to be accepted if none of the said States has, within six months after such communication, expressed its opposition to acceptance of the reservation. Otherwise the reservation shall not be admitted, and, if the State which entered the reservation does not withdraw it the deposit of that State's instrument of ratification or accession shall be without effect. For the purpose of the application of this paragraph the opposition of States whose accession or ratification is, in virtue of this paragraph without effect by reason of reservations entered by them, shall be disregarded.
3. Any Contracting Party whose reservation has been adopted in the Protocol of signature of this Agreement or who has entered a reservation pursuant to paragraph 1 of this article, or made a reservation which has been accepted pursuant to paragraph 2 of this article may at any time withdraw such reservation by a notification addressed to the Secretary-General.