【正确答案】Open policy is a convenient method for insuring the goods where a number of consignments of similar export goods are intended to be covered. There is an agreement between the insured and the insurance company. The particulars of these shipments should be supplied to the insurance company later on in the form of shipment advices which include the names of cargoes, quantities, insurance amounts, kinds of conveyance, ports of shipment, destinations, dates of shipment, etc. Under the previous arrangement between the insured and the insurance company, an open policy covers these shipments as soon as the insurance company receives the advice.