of this Article, the Conference of the Parties shall acquire the necessary knowledge of the measures taken by States Parties in implementing this Convention and the difficulties encountered by them in doing so through information provided by them and through such supplemental review mechanisms as may be established by the Conference of the Parties. 5. Each State Party shall provide the Conference of the Parties with information on its programmes, plans and practices, as well as legislative and administrative measures to implement this Convention, as required by the Conference of the Parties. Article 33 Secretariat 1. The Secretary-General of the United Nations shall provide the necessary secretariat services to the Conference of the Parties to the Convention. 2. The secretariat shall: (a) assist the Conference of the Parties in carrying out the activities set forth in Article 32 of this Convention and make arrangements and provide the necessary services for the sessions of the Conference of the Parties; (b) upon request, assist States Parties in providing information to the Conference of the Parties as envisaged in Article 32(5), of this Convention; and (c) ensure the necessary coordination with the secretariats of relevant international and regional organisations. Article 34 Implementation of the Convention 1. Each State Party shall take the necessary measures, including legislative and administrative measures, in accordance with fundamental principles of its domestic law, to ensure the implementation of its obligations under this Convention. 2. The offences established in accordance with Articles 5, 6, 8 and 23 of this Convention shall be established in the domestic law of each State Party independently of the transnational nature or the involvement of an organised criminal group as described in Article 3(1), of this Convention, except to the extent that Article 5 of this Convention would require the involvement of an organised criminal group. 3. Each State Party may adopt more strict or severe measures than those provided for by this Convention for preventing and combating transnational organised crime. Article 35 Settlement of disputes l. States Parties shall endeavour to settle disputes concerning the interpretation or application of this Convention through negotiation. 2. Any dispute between two or more States Parties concerning the interpretation or application of this Convention that cannot be settled through negotiation within a reasonable time shall, at the request of one of those States Parties, be submitted to arbitration. If, six months after the date of the request for arbitration, those States Parties are unable to agree on the organisation of the arbitration, any one of those States Parties may refer the dispute to the International Court of Justice by request in accordance with the Statute of the Court. 3. Each State Party may, at the time of signature, ratification, acceptance or approval of or accession to this Convention, declare that it does not consider itself bound by paragraph 2 of this Article. The other States Parties shall not be bound by paragraph 2 of this Article with respect to any State Party that has made such a reservation. 4. Any State Party that has made a reservation in accordance with paragraph 3 of this Article may at any time withdraw that reservation by notification to the Secretary-General of the United Nations. Article 36 Signature, ratification, acceptance, approval and accession 1. This Convention shall be open to all States for signature from 12 to 15 December 2000 in Palermo, Italy, and thereafter at United Nations Headquarters in New York until 12 December 2002 . 2. This Convention shall also be open for signature by regional economic integration organisations provided that at least one Member State of such organisation has signed this Convention in accordance with paragraph 1 of this Article. 3. This Convention is subject to ratification, acceptance or approval. Instruments of ratification, acceptance or approval shall be deposited with the Secretary-General of the United Nations. A regional economic integration organisation may deposit its instrument of ratification, acceptance or approval if at least one of its Member States has done likewise. In that instrument of ratification, acceptance or approval, such organisation shall declare the extent of its competence with respect to the matters governed by this Convention. Such organisation shall also inform the depositary of any relevant modification in the extent of its competence. 4. This Convention is open for accession by any State or any regional economic integration organisation of which at least one Member State is a Party to this Convention. Instruments of accession shall be deposited with the Secretary-General of the United Nations. At the time of its accession, a regional economic integration organisation shall declare the extent of its competence with respect to matters governed by this Convention. Such organisation shall also inform the depositary of any relevant modification in the extent of its competence. Article 37 Relation with protocols 1. This Convention may be supplemented by one or more protocols. 2. In order to become a Party to a protocol, a State or a regional economic integration organisation must also be a Party to this Convention. 3. A State