Article 9 1. The Committee may invite the State Party concerned to include in its report under article 18 of the Convention details of any measures taken in response to an inquiry conducted under article 8 of the present Protocol. 2. The Committee may, if necessary, after the end of the period of six months referred to in article 8.4, invite the State Party concerned to inform it of the measures taken in response to such an inquiry. Article 10 1. Each State Party may, at the time of signature or ratification of the present Protocol or accession thereto, declare that it does not recognize the competence of the Committee provided for in articles 8 and 9. 2. Any State Party having made a declaration in accordance with paragraph 1 of the present article may, at any time, withdraw this declaration by notification to the Secretary-General. Article 11 A State Party shall take all appropriate steps to ensure that individuals under its jurisdiction are not subjected to ill treatment or intimidation as a consequence of communicating with the Committee pursuant to the present Protocol. Article 12 The Committee shall include in its annual report under article 21 of the Convention a summary of its activities under the present Protocol. Article 13 Each State Party undertakes to make widely known and to give publicity to the Convention and the present Protocol and to facilitate access to information about the views and recommendations of the Committee, in particular, on matters involving that State Party. Article 14 The Committee shall develop its own rules of procedure to be followed when exercising the functions conferred on it by the present Protocol. Article 15 1. The present Protocol shall be open for signature by any State that has signed, ratified or acceded to the Convention. 2. The present Protocol shall be subject to ratification by any State that has ratified or acceded to the Convention. Instruments of ratification shall be deposited with the Secretary-General of the United Nations. 3. The present Protocol shall be open to accession by any State that has ratified or acceded to the Convention. 4. Accession shall be effected by the deposit of an instrument of accession with the Secretary-General of the United Nations. Article 16 1. The present Protocol shall enter into force three months after the date of the deposit with the SecretaryGeneral of the United Nations of the tenth instrument of ratification or accession. 2. For each State ratifying the present Protocol or acceding to it after its entry into force, the present Protocol shall enter into force three months after the date of the deposit of its own instrument of ratification or accession. Article 17 No reservations to the present Protocol shall be permitted. 3