Article 17
Amendments 
(1) Proposals for the amendment of this Convention may be initiated by any Member State, by the Coordination Committee, or by the Director General. Such proposals shall be communicated by the Director General to the Member States at least six months in advance of their consideration by the Conference. 
(2) Amendments shall be adopted by the Conference. Whenever amendments would affect the rights and obligations of States party to this Convention not members of any of the Unions, such States shall also vote. On all other amendments proposed, only States party to this Convention members of any Union shall vote. Amendments shall be adopted by a simple majority of the votes cast, provided that the Conference shall vote only on such proposals for amendments as have previously been adopted by the Assembly of the Paris Union and the Assembly of the Berne Union according to the rules applicable in each of them regarding the adoption of amendments to the administrative provisions of their respective Conventions. 
(3) Any amendment shall enter into force one month after written notifications of acceptance, effected in accordance with their respective constitutional processes, have been received by the Director General from three-fourths of the States Members of the Organization, entitled to vote on the proposal for amendment pursuant to paragraph (2), at the time the Conference adopted the amendment. Any amendments thus accepted shall bind all the States which are Members of the Organization at the time the amendment enters into force or which become Members at a subsequent date, provided that any amendment increasing the financial obligations of Member States shall bind only those States which have notified their acceptance of such amendment. 
Article 18
Denunciation 
(1) Any Member State may denounce this Convention by notification addressed to the Director General. 
(2) Denunciation shall take effect six months after the day on which the Director General has received the notification. 
Article 19
Notifications 
The Director General shall notify the Governments of all Member States of: 
(i)
the date of entry into force of the Convention, 
(ii)
signatures and deposits of instruments of ratification or accession, 
(iii)
acceptances of an amendment to this Convention, and the date upon which the amendment enters into force, 
(iv)
denunciations of this Convention. 
Article 20
Final Provisions 
(1) 
(a) This Convention shall be signed in a single copy in English, French, Russian and Spanish, all texts being equally authentic, and shall be deposited with the Government of Sweden. 
(b) This Convention shall remain open for signature at Stockholm until January 13, 1968. 
(2) Official texts shall be established by the Director General, after consultation with the interested Governments, in German, Italian and Portuguese, and such other languages as the Conference may designate. 
(3) The Director General shall transmit two duly certified copies of this Convention and of each amendment adopted by the Conference to the Governments of the States members of the Paris or Berne Unions, to the Government of any other State when it accedes to this Convention, and, on request, to the Government of any other State. The copies of the signed text of the Convention transmitted to the Governments shall be certified by the Government of Sweden. 
(4) The Director General shall register this Convention with the Secretariat of the United Nations. 
Article 21
Transitional Provisions 
(1) Until the first Director General assumes office, references in this Convention to the International Bureau or to the Director General shall be deemed to be references to the United International Bureaux for the Protection of Industrial, Literary and Artistic Property (also called the United International Bureaux for the Protection of Intellectual Property (BIRPI)), or its Director, respectively. 
(2) 
(a) States which are members of any of the Unions but which have not become party to this Convention may, for five years from the date of entry into force of this Convention, exercise, if they so desire, the same rights as if they had become party to this Convention. Any State desiring to exercise such rights shall give written notification to this effect to the Director General; this notification shall be effective on the date of its receipt. Such States shall be deemed to be members of the General Assembly and the Conference until the expiration of the said period. 
(b) Upon expiration of this five-year period, such States shall have no right to vote in the General Assembly, the Conference, and the Coordination Committee. 
(c) Upon becoming party to this Convention, such States shall regain such right to vote. 
(3) 
(a) As long as there are States members of the Paris or Berne Unions which have not become party to this Convention, the International Bureau and the Director General shall also function as the United International Bureaux for the Protection of Industrial, Literary and Artistic Property, and its Director, respectively. 
(b) The staff in the employment of the said Bureaux on the date of entry into force of this Convention shall, during the transitional period referred to in subparagraph (a), be considered as also employed by the International Bureau. 
(4) 
(a) Once all the States members of the Paris Union have become Members of the Organization, the rights, obligations, and property, of the Bureau of that Union shall devolve on the International Bureau of the Organization. 
(b) Once all the States members of the Berne Union have become Members of the Organization, the rights, obligations, and property, of the Bureau of that Union shall devolve on the International Bureau of the Organization.