The Fund finds, after consultation with the Belgian authorities, that the representative exchange rate for Belgian francs under Rule 0-3 (ii) is the official quotation established in the Brussels exchange market. The Banque Nationale de Belgique will ascertain this rate each business day. If the exchange rate cannot be ascertained for a date required by Rule 0-4, the exchange rate for that date shall be the rate ascertained for the preceding business day.