3. Upon a substantiated request by the State Party, the Committee may decide to postpone or cancel its visit. 4. If the State Party agrees to the visit, the Committee and the State Party concerned shall work together to define the modalities of the visit and the State Party shall provide the Committee with all the facilities needed for the successful completion of the visit. 5. Following its visit, the Committee shall communicate to the State Party concerned its observations and recommendations. Article 34 If the Committee receives information which appears to it to contain well-founded indications that enforced disappearance is being practised on a widespread or systematic basis in the territory under the jurisdiction of a State Party, it may, after seeking from the State Party concerned all relevant information on the situation, urgently bring the matter to the attention of the General Assembly of the United Nations, through the Secretary-General of the United Nations. Article 35 1. The Committee shall have competence solely in respect of enforced disappearances which commenced after the entry into force of this Convention. 2. If a State becomes a party to this Convention after its entry into force, the obligations of that State vis-à-vis the Committee shall relate only to enforced disappearances which commenced after the entry into force of this Convention for the State concerned. Article 36 1. The Committee shall submit an annual report on its activities under this Convention to the States Parties and to the General Assembly of the United Nations. 2. Before an observation on a State Party is published in the annual report, the State Party concerned shall be informed in advance and shall be given reasonable time to answer. This State Party may request the publication of its comments or observations in the report. Part III Article 37 Nothing in this Convention shall affect any provisions which are more conducive to the protection of all persons from enforced disappearance and which may be contained in: (a) The law of a State Party; (b) International law in force for that State. Article 38 1. This Convention is open for signature by all Member States of the United Nations. 2. This Convention is subject to ratification by all Member States of the United Nations. Instruments of ratification shall be deposited with the Secretary-General of the United Nations. 13