United Nations Treaties And Principles On Outer Space

Agreement has been in force for five years, the Secretary-General of the UnitedNations, as depositary, shall, at the request of one third of the States Parties to theAgreement and with the concurrence of the majority of the States Parties, convenea conference of the States Parties to review this Agreement. A review conferenceshall also consider the question of the implementation of the provisions of article 11,paragraph 5, on the basis of the principle referred to in paragraph 1 of that articleand taking into account in particular any relevant technological developments.Article 191. This Agreement shall be open for signature by all States at United NationsHeadquarters in New York.2. This Agreement shall be subject to ratification by signatory States. AnyState which does not sign this Agreement before its entry into force inaccordance with paragraph 3 of this article may accede to it at any time.Instruments of ratification or accession shall be deposited with theSecretary-General of the United Nations.3. This Agreement shall enter into force on the thirtieth day following thedate of deposit of the fifth instrument of ratification.4. For each State depositing its instrument of ratification or accession afterthe entry into force of this Agreement, it shall enter into force on thethirtieth day following the date of deposit of any such instrument.5. The Secretary-General shall promptly inform all signatory and accedingStates of the date of each signature, the date of deposit of each instrumentof ratification or accession to this Agreement, the date of its entry intoforce and other notices.Article 20Any State Party to this Agreement may give notice of its withdrawal from theAgreement one year after its entry into force by written notification to the Secretary-General of the United Nations. Such withdrawal shall take effect one year from thedate of receipt of this notification.Article 21The original of this Agreement, of which the Arabic, Chinese, English, French,Russian and Spanish texts are equally authentic, shall be deposited with the Secretary-Generalof the United Nations, who shall send certified copies thereof to allsignatory and acceding States.IN WITNESS WHEREOF the undersigned, being duly authorized thereto bytheir respective Governments, have signed this Agreement, opened for signature atNew York on the eighteenth day of December, one thousand nine hundred andseventy-nine.35