Do rollover shipments need new ISFs?
If you have some cargo that made the shipment but others that are rolled over, you should update the ISF with the information about the cargo that made the shipment. If the ISF has already been transmitted with a bill of lading (BOL) that is being rolled over, you will need to take that BOL off of that ISF as well and request that a new BOL be issued for the rolled over cargo. You will then create a new ISF for the rolled over cargo with the new bill of lading. If an entire shipment is rolled over, you will need to update the ISF if any of the information has changed, including the new bill of lading. If the information is exactly the same, then you don’t need to do anything. It may seem difficult to receive a new BOL for a rolled over shipment, but if you have already transmitted an ISF with that BOL, then you will receive a rejected ISF with a Duplicate ISF Transaction error message because Customs will not accept more than one ISF with the same BOL. This can seem problematic, but th
