Shipping Glossary
| Inland CarrierA transportation line that hauls export or import traffic between ports and inland points | 
| Inland Point Intermodal (IPI)Refers to inland points (non-ports) that can be served by carriers on a through bill of lading | 
| INMARSATInternational Maritime Satelite Organization | 
| INPINCENTIVE PROGRAM REBATE | 
| INSINSURANCE PREMIUM | 
| Inspection CertificateA certificate issued by an independent agent or firm attesting to the quality and/or quantity of the merchandise being shipped. Such a certificate is usually required in a letter of credit for commodity shipments | 
| Installment ShipmentsSuccessive shipments are permitted under letters of credit. Usually they must take place within a given period of time | 
| Insulated ContainerA container insulated on the walls, roof, floor and doors, to reduce the effect of external temperatures on the cargo | 
| Insulated TankThe frame of a container constructed to hold one or more thermally insulated tanks for liquids | 
| Interchange PointsA terminal at which freight in the course of transportation is delivered by one transportation line to another |