| Segment | Ebene | Beschreibung | Opt/Mand. |
|---|
| UNH | 0 | A service segment starting and uniquely identifying a message. The message type code for the Means of transport and equipment position message is MEQPOS. Note: Means of transport and equipment position messages conforming to this document must contain the following data in segment UNH, composite S009: Data element 0065 MEQPOS D A UN | Mandatory |
| BGM | 0 | A segment to indicate the beginning of a message and to transmit the identifying number. | Mandatory |
| DTM | 0 | A segment to provide the date and time of the message. | Optional |
| QTY | 0 | A segment to indicate a quantity, such as the number of passengers on board the means of transport for a certain conveyance. | Optional |
| LOC | 0 | A segment to specify the position of the means of transport, e.g. by giving longitude and latitude coordinates of the vessel at sea. | Mandatory |
| SG1 | 0 | SG1 | Mandatory |
| RFF | 1 | A segment to specify a reference, e.g. reference to previous message. | Mandatory |
| DTM | 1 | A segment to indicate a date and time related to the reference. | Optional |
| SG2 | 0 | SG2 | Optional |
| TDT | 1 | A segment to identify the means of transport (e.g. by Lloyd's Register number of a vessel, or by the license plate number of a truck). | Mandatory |
| DTM | 1 | A segment to indicate the estimated date and time of arrival and departure. | Optional |
| SG3 | 1 | SG3 | Optional |
| LOC | 2 | A segment to indicate a location relating to the means of transport, such as: - place or port of departure - next place or port of call. | Mandatory |
| DTM | 2 | A segment to specify date(s) and time(s) related to a location. | Optional |
| SG4 | 0 | SG4 | Optional |
| NAD | 1 | A segment to identify a party's name, address and function. | Mandatory |
| SG5 | 1 | SG5 | Mandatory |
| CTA | 2 | A segment to identify a person or department within the party. | Mandatory |
| COM | 2 | A segment to identify a communication number of a person or department to whom communication should be directed. | Optional |
| SG6 | 0 | SG6 | Optional |
| EQD | 1 | A segment to identify equipment, such as railcars. | Mandatory |
| LOC | 1 | A segment to specify the location of the equipment. | Optional |
| DTM | 1 | A segment to specify a date and time related to the equipment. | Optional |
| UNT | 0 | A service segment ending a message, giving the total number of segments in the message (including the UNH & UNT) and the control reference number of the message. | Mandatory |
