(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.
(3) Subject to the provisions of paragraph (5), the budget of the Union shall be financed from the following sources:
(4) The amounts of fees and charges due to the International Bureau and the prices of its publications shall be so fixed that they should, under normal circumstances, be sufficient to cover all the expenses of the International Bureau connected with the administration of this Treaty.
(b) The amount of the contribution of each Contracting State shall be decided by the Assembly with due regard to the number of international applications which has emanated from each of them in the relevant year.
(c) If other means of provisionally covering any deficit or any part thereof are secured, the Assembly may decide that such deficit be carried forward and that the Contracting States should not be asked to pay contributions.
(d) If the financial situation of the Union so permits, the Assembly may decide that any contributions paid under subparagraph (a) be reimbursed to the Contracting States which have paid them.
(e) A Contracting State which has not paid, within two years of the due date as established by the Assembly, its contribution under subparagraph (b) may not exercise its right to vote in any of the organs of the Union. However, any organ of the Union may allow such a State to continue to exercise its right to vote in that organ so long as it is satisfied that the delay in payment is due to exceptional and unavoidable circumstances.
(7)(a) The Union shall have a working capital fund which shall be constituted by a single payment made by each Contracting State. If the fund becomes insufficient, the Assembly shall arrange to increase it. If part of the fund is no longer needed, it shall be reimbursed.
(b) The amount of the initial payment of each Contracting State to the said fund or of its participation in the increase thereof shall be decided by the Assembly on the basis of principles similar to those provided for under paragraph (5)(b).
(8)(a) In the headquarters agreement concluded with the State on the territory of which the Organization has its headquarters, it shall be provided that, whenever the working capital fund is insufficient, such State 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 State and the Organization. As long as it remains under the obligation to grant advances, such State shall have an ex officio seat in the Assembly and on the Executive Committee.
(b) The State 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.
(9) The auditing of the accounts shall be effected by one or more of the Contracting States or by external auditors, as provided in the financial regulations. They shall be designated, with their agreement, by the Assembly.