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If their laws do not already make provision to this effect, the High Contracting Parties undertake to alter their laws in all the territories placed under their sovereignty or authority to which the present Convention is applicable, so that the validity of obligations arising out of a cheque or the exercise of the rights that flow therefrom shall not be subordinated to the observance of the provisions concerning the stamp.
Nevertheless, the High Contracting Parties may suspend the exercise of these rights until payment of the stamp duties they prescribe or of any penalties incurred. They may also decide that the quality and effects of an instrument „immediately executory” which, according to their legislation may be attributed to a cheque, shall be subject to the condition that the stamp law has, from the issue of the instrument, been duly complied with in accordance with their laws.