However, in emergency situations of the types addressed by Articles XX and XXI of GATT 1994, such additional requirements or changes may be applied to a shipment before the exporter has been informed.

• 但是，在gatt 1994第20条和第21条所处理类型的紧急情况下，此类额外要求或变更可在通知出口商之前对装运货物实施。