What are the different ISF transaction types?
A “Compliant Transaction” is used when you are sending 10 accurate ISF data elements. This means you are telling Customs that everything within the ISF is correct (to the best of your knowledge). “Flexible Range” is used when you are not sure what items will be included in the shipment. If this is the case, you would enter every possible HTS code and file using “Flexible Range.” However, once you receive accurate information, you need to update the ISF before the ship arrives in port. Once you update and retransmit, Customs will consider the ISF a “Compliant Transaction.” “Flexible Timing” is used when you are unaware of the Consolidator or Stuffing Location. Since these items were not necessary previously, Customs allows you to file your Importer Security Filing under this transaction type without those entities. However, like “Flexible Range,” the ISF must be updated and retransmitted before the ship enters port.
