Once an air waybill number has been used by the issuer for an air waybill, when may the number be used for another shipment?

Once an air waybill number has been used by the issuer for an air waybill, when may the number be used for another shipment?

Once an air waybill number has been used to report a cargo shipment in Air AMS, the same air waybill number may not be used for a period of one year after issuance.  Air AMS is programmed to archive an air waybill record one year after its use.  Air AMS will not archive an air waybill record if there is an outstanding hold on the air waybill.  An Air AMS participant may use the freight status query (FSQ) message to determine if such a hold exists on an air waybill record.