Exemption on imported silver: duty limited for eligible returning passengers subject to currency payment, quantity and arrival conditions. Exemption reduces customs duty on silver imported as baggage by an eligible passenger, exempting duty in excess of the specified per-kilogram rate and the additional duty under the Customs Tariff Act, provided duty at that rate is paid in convertible foreign currency, quantity does not exceed one hundred kilograms per passenger, and the silver is carried on arrival or imported within fifteen days; similar conditions plus a prescribed arrival declaration and pre-clearance duty payment apply for delivery from specified customs bonded warehouses.