How to Add IIT Shipment?

In the Create Trip, go to Conveyance (Truck) or Equipment (Trailer) Information > toggle on the IIT > Choose EC/EI/MC/MI.

EC - Shipment consists of empty IITs covered by Carrier's bond
EI - Shipment consists of empty IITs covered by the Importer's bond
MC - Shipment consists of merchandise and IITs. IITs covered by Carrier's bond
MI - Shipment consists of merchandise and IITs. IITs covered by Importer's bond