IEA – Interchange Control Trailer
| Loop | Seg ID | Segment Name | Format | Length | Ref# | Req | Value |
| IEA | Interchange Control Trailer | 3 | R | IEA | |||
| Element Separator | AN | 1 | * | ||||
| IEA01 | Number of Included Functional Groups | No | 1/5 | 116 | R | ||
| Element Separator | AN | 1 | * | ||||
| IEA02 | Interchange Control Number | No | 9 | 112 | R | Must be same as ISA13 | |
| Segment Terminator | ~ |