4.3 Message structure 4.3.1 Segment table Pos Tag Name S R 0010 UNH Message header M 1 0020 BGM Beginning of message M 1 0030 DTM Date/time/period C 9 0040 FTX Free text C 99 0050 + ----- Segment group 1 ------------------ C 9-----------+ 0060 * RFF Reference M 1 | 0070 + DTM Date/time/period C 9-----------+ 0080 ----- Segment group 2 ------------------ C 9-----------+ 0090 LOC Place/location identification M 1 | 0100 DTM Date/time/period C 9-----------+ 0110 ----- Segment group 3 ------------------ C 9-----------+ 0120 EQD Equipment details M 1 | 0130 EQN Number of units C 9 | 0140 MEA Measurements C 9 | 0150 DIM Dimensions C 9 | 0160 FTX Free text C 9-----------+ 0170 ----- Segment group 4 ------------------ C 999---------+ 0180 TDT Details of transport M 1 | 0190 DTM Date/time/period C 9 | 0200 TSR Transport service requirements C 9 | 0210 FTX Free text C 9 | 0220 EQD Equipment details C 99 | 0230 QTY Quantity C 9 | 0240 MEA Measurements C 9 | | 0250 ----- Segment group 5 ------------------ C 99---------+| 0260 LOC Place/location identification M 1 || 0270 DTM Date/time/period C 9----------++ 0280 ----- Segment group 6 ------------------ C 9-----------+ 0290 NAD Name and address M 1 | 0300 LOC Place/location identification C 9 | | 0310 ----- Segment group 7 ------------------ C 9----------+| 0320 CTA Contact information M 1 || 0330 COM Communication contact C 9----------++ 0340 ----- Segment group 8 ------------------ C 9-----------+ 0350 GID Goods item details M 1 | 0360 HAN Handling instructions C 9 | 0370 FTX Free text C 9 | | 0380 ----- Segment group 9 ------------------ C 9----------+| 0390 GDS Nature of cargo M 1 || 0400 FTX Free text C 9----------+| | 0410 ----- Segment group 10 ------------------ C 9----------+| 0420 MEA Measurements M 1 || 0430 EQN Number of units C 9----------+| | 0440 ----- Segment group 11 ------------------ C 9----------+| 0450 DIM Dimensions M 1 || 0460 EQN Number of units C 9----------+| | 0470 ----- Segment group 12 ------------------ C 9----------+| 0480 DGS Dangerous goods M 1 || 0490 FTX Free text C 9----------++ 0500 UNT Message trailer M 1