Article 24
[International Bureau: 1. Tasks in general, Director General; 2. General information; 3. Periodical; 4. Information to countries; 5. Studies and services; 6. Participation in meetings; 7. Conferences of revision; 8. Other tasks] 
(1) 
(a) The administrative tasks with respect to the Union shall be performed by the International Bureau, which is a continuation of the Bureau of the Union united with the Bureau of the Union established by the International Convention for the Protection of Industrial Property. 
(b) In particular, the International Bureau shall provide the secretariat of the various organs of the Union. 
(c) The Director General of the Organization shall be the chief executive of the Union and shall represent the Union. 
(2) The International Bureau shall assemble and publish information concerning the protection of copyright. Each country of the Union shall promptly communicate to the International Bureau all new laws and official texts concerning the protection of copyright. 
(3) The International Bureau shall publish a monthly periodical. 
(4) The International Bureau shall, on request, furnish information to any country of the Union on matters concerning the protection of copyright. 
(5) The International Bureau shall conduct studies, and shall provide services, designed to facilitate the protection of copyright. 
(6) The Director General and any staff member designated by him shall participate, without the right to vote, in all meetings of the Assembly, the Executive Committee and any other committee of experts or working group. The Director General, or a staff member designated by him, shall be ex officio secretary of these bodies. 
(7) 
(a) The International Bureau shall, in accordance with the directions of the Assembly and in cooperation with the Executive Committee, make the preparations for the conferences of revision of the provisions of the Convention other than Article 22 to Article 26. 
(b) The International Bureau may consult with intergovernmental and international non-governmental organizations concerning preparations for conferences of revision. 
(c) The Director General and persons designated by him shall take part, without the right to vote, in the discussions at these conferences. 
(8) The International Bureau shall carry out any other tasks assigned to it. 
Article 25
[Finances: 1. Budget; 2. Coordination with other Unions; 3. Resources; 4. Contributions; possible extension of previous budget; 5. Fees and charges; 6. Working capital fund; 7. Advances by host Government; 8. Auditing of accounts] 
(1) 
(a) The Union shall have a budget. 
(b) The budget of the Union shall include the income and expenses proper to the Union, its contribution to the budget of expenses common to the Unions, and, where applicable, the sum made available to the budget of the Conference of the Organization. 
(c) Expenses not attributable exclusively to the Union but also to one or more other Unions administered by the Organization shall be considered as expenses common to the Unions. The share of the Union in such common expenses shall be in proportion to the interest the Union has in them. 
(2) The budget of the Union shall be established with due regard to the requirements of coordination with the budgets of the other Unions administered by the Organization. 
(3) The budget of the Union shall be financed from the following sources: 
(i)
contributions of the countries of the Union; 
(ii)
fees and charges due for services performed by the International Bureau in relation to the Union; 
(iii)
sale of, or royalties on, the publications of the International Bureau concerning the Union; 
(iv)
gifts, bequests, and subventions; 
(v)
rents, interests, and other miscellaneous income. 
(4) 
(a) For the purpose of establishing its contribution towards the budget, each country of the Union shall belong to a class, and shall pay its annual contributions on the basis of a number of units fixed as follows: 
Class I ............ 25 
Class II ............ 20 
Class III ........... 15 
Class IV ........... 10 
Class V ............. 5 
Class VI ............. 3 
Class VII ............. 1 
(b) Unless it has already done so, each country shall indicate, concurrently with depositing its instrument of ratification or accession, the class to which it wishes to belong. Any country may change class. If it chooses a lower class, the country must announce it to the Assembly at one of its ordinary sessions. Any such change shall take effect at the beginning of the calendar year following the session. 
(c) The annual contribution of each country shall be an amount in the same proportion to the total sum to be contributed to the annual budget of the Union by all countries as the number of its units is to the total of the units of all contributing countries. 
(d) Contributions shall become due on the first of January of each year. 
(e) A country which is in arrears in the payment of its contributions shall have no vote in any of the organs of the Union of which it is a member if the amount of its arrears equals or exceeds the amount of the contributions due from it for the preceding two full years. However, any organ of the Union may allow such a country to continue to exercise its vote in that organ if, and as long as, it is satisfied that the delay in payment is due to exceptional and unavoidable circumstances. 
(f) If the budget is not adopted before the beginning of a new financial period, it shall be at the same level as the budget of the previous year, in accordance with the financial regulations. 
(5) The amount of the fees and charges due for services rendered by the International Bureau in relation to the Union shall be established, and shall be reported to the Assembly and the Executive Committee, by the Director General. 
(6) 
(a) The Union shall have a working capital fund which shall be constituted by a single payment made by each country of the Union. If the fund becomes insufficient, an increase shall be decided by the Assembly. 
(b) The amount of the initial payment of each country to the said fund or of its participation in the increase thereof shall be a proportion of the contribution of that country for the year in which the fund is established or the increase decided. 
(c) The proportion and the terms of payment shall be fixed by the Assembly on the proposal of the Director General and after it has heard the advice of the Coordination Committee of the Organization. 
(7) 
(a) In the headquarters agreement concluded with the country on the territory of which the Organization has its headquarters, it shall be provided that, whenever the working capital fund is insufficient, such country shall grant advances. The amount of these advances and the conditions on which they are granted shall be the subject of separate agreements, in each case, between such country and the Organization. As long as it remains under the obligation to grant advances, such country shall have an ex officio seat on the Executive Committee. 
(b) The country referred to in subparagraph (a) and the Organization shall each have the right to denounce the obligation to grant advances, by written notification. Denunciation shall take effect three years after the end of the year in which it has been notified. 
(8) The auditing of the accounts shall be effected by one or more of the countries of the Union or by external auditors, as provided in the financial regulations. They shall be designated, with their agreement, by the Assembly. 
Article 26
[Amendments: 1. Provisions susceptible of amendment by the Assembly; proposals; 2. Adoption; 3. Entry into force] 
(1) Proposals for the amendment of Article 22, Article 23, Article 24, Article 25, and the present Article, may be initiated by any country member of the Assembly, by the Executive Committee, or by the Director General. Such proposals shall be communicated by the Director General to the member countries of the Assembly at least six months in advance of their consideration by the Assembly. 
(2) Amendments to the Articles referred to in paragraph (1) shall be adopted by the Assembly. Adoption shall require three-fourths of the votes cast, provided that any amendment of Article 22, and of the present paragraph, shall require four-fifths of the votes cast. 
(3) Any amendment to the Articles referred to in paragraph (1) 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 countries members of the Assembly at the time it adopted the amendment. Any amendment to the said Articles thus accepted shall bind all the countries which are members of the Assembly at the time the amendment enters into force, or which become members thereof at a subsequent date, provided that any amendment increasing the financial obligations of countries of the Union shall bind only those countries which have notified their acceptance of such amendment. 
Article 27
[Revision: 1. Objective; 2. Conferences; 3. Adoption] 
(1) This Convention shall be submitted to revision with a view to the introduction of amendments designed to improve the system of the Union. 
(2) For this purpose, conferences shall be held successively in one of the countries of the Union among the delegates of the said countries. 
(3) Subject to the provisions of Article 26 which apply to the amendment of Article 22 to Article 26, any revision of this Act, including the Appendix, shall require the unanimity of the votes cast. 
Article 28
[Acceptance and Entry Into Force of Act for Countries of the Union: 1. Ratification, accession; possibility of excluding certain provisions; withdrawal of exclusion; 2. Entry into force of Articles 1 to 21 and Appendix; 3. Entry into force of Articles 22 to 38] 
(1) 
(a) Any country of the Union which has signed this Act may ratify it, and, if it has not signed it, may accede to it. Instruments of ratification or accession shall be deposited with the Director General. 
(b) Any country of the Union may declare in its instrument of ratification or accession that its ratification or accession shall not apply to Article 1 to Article 21 and the Appendix, provided that, if such country has previously made a declaration under Article VI(1) of the Appendix, then it may declare in the said instrument only that its ratification or accession shall not apply to Article 1 to Article 20. 
(c) Any country of the Union which, in accordance with subparagraph (b), has excluded provisions therein referred to from the effects of its ratification or accession may at any later time declare that it extends the effects of its ratification or accession to those provisions. Such declaration shall be deposited with the Director General. 
(2) 
(a) Article 1 to Article 21 and the Appendix shall enter into force three months after both of the following two conditions are fulfilled: 
(i)
at least five countries of the Union have ratified or acceded to this Act without making a declaration under paragraph (1)(b), 
(ii)
France, Spain, the United Kingdom of Great Britain and Northern Ireland, and the United States of America, have become bound by the Universal Copyright Convention as revised at Paris on July 24, 1971. 
(b) The entry into force referred to in subparagraph (a) shall apply to those countries of the Union which, at least three months before the said entry into force, have deposited instruments of ratification or accession not containing a declaration under paragraph (1)(b). 
(c) With respect to any country of the Union not covered by subparagraph (b) and which ratifies or accedes to this Act without making a declaration under paragraph (1)(b), Article 1 to Article 21 and the Appendix shall enter into force three months after the date on which the Director General has notified the deposit of the relevant instrument of ratification or accession, unless a subsequent date has been indicated in the instrument deposited. In the latter case, Article 1 to Article 21 and the Appendix shall enter into force with respect to that country on the date thus indicated. 
(d) The provisions of subparagraph (a) to subparagraph (c) do not affect the application of Article VI of the Appendix. 
(3) With respect to any country of the Union which ratifies or accedes to this Act with or without a declaration made under paragraph (1)(b), Article 22 to Article 38 shall enter into force three months after the date on which the Director General has notified the deposit of the relevant instrument of ratification or accession, unless a subsequent date has been indicated in the instrument deposited. In the latter case, Article 22 to Article 38 shall enter into force with respect to that country on the date thus indicated.