As freight forwarders / NVOCC, we must complete the AMS filing 24 hours before loading. In practice, Ocean Carriers often require 48 or 72 hours before loading.
So, what are the indicators of a successful AMS filing? The following three responses must be obtained:
Generated to FF/NVOCC when the SCAC and House B/L number transmitted by the FF/NVOCC matches that of the contract ocean carrier.
Generated as a result of an accepted Importer Security Filing. An advisory message indicating that the Import Security Filing has been accepted for this shipment.
All three indicators must be obtained at least 24 hours before loading, please not force loading without them. Otherwise, CBP is likely to issue a $5,000 penalty.