61 STAT.] MULTILATERAL-EXCHANGE OF MONEY ORDERS-SEPT. 25 , 1946 3569 ARTICLE 19 Discontinuance of money orders accounts By mutual agreecment of By mutual agreement the Administrations may discontinue the check to required accounting referred to in the preceding Article. In this event they Form. undertake to attach a check for the total amount of the money orders when they forward Form A and adopt the same process when the use Ante, p . 3554. of Forms C and D are required. Ante, pp . 3559,3560 . In the absence of agreement to the contrary, the checks will be Convesion. drawn in currency of the creditor country and the conversion will be made on the basis of the open exchange. ARTICLE 20 Advance payments on account When an Administration owes another, on account of the money orders, a balance which is over 25,000 gold francs, or its approximate equivalent in its own money, the debtor Administration will send to the creditor Administration, as soon as possible, as an advance pay- ment, a sum approximating its balance in the quarterly settlement referred to in Article 18. ARTICLE 21 Suspension of service 1. The contracting Administrations under extraordinary circum- stances may suspend the issuance of money orders temporarily and adopt such provisions as they deem necessary to safeguard their interests and to avoid any speculation through the money order service. 2. The Administration which adopts any of the measures referred Notiflnation. to in the preceding paragraph should immediately notify all Adminis- trations with which it exchanges money orders of the fact. ARTICLE 22 Propositions during the interval between meetings The present Agreement may be modified in the interval between the Congresses in accordance with the procedure established by the Convention of the Universal Postal Union. In order to become tat. 209. effective, the modifications must obtain: a) a unanimity of votes for the modifications of Articles 1, 2, 5, 8, 9, 14, 18, 19, 20, 21, 22, and 23; b) two thirds of the votes to modify the other Articles. ARTICLE 23 Effective date and duration of this Agreement 1. The present Agreement will become effective on January 1, 1947, and will remain in effect without any time limit; each of the contracting powers reserving the right to denounce it by means of a
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