#### Messages Transmitted by ECDIS


| Message | Addressee | Content |
|-----------|----------|------------|
| ALC<sup>a</sup> | VDR, BAM, INS | Cyclic alarm list |
| ALF<sup>a</sup> | VDR, BAM, INS | Warning |
| ARC<sup>a</sup> | BAM, INS | BAM command rejection |
| EVE<sup>b</sup> | BNWAS | Navigator alertness |
| HBT<sup>b</sup> | BAM, INS | Heartbeat |
| RRT | ECDIS backup | Route transfer report |
| VSD<sup>b</sup>, VSD<sup>a</sup>, SSD<sup>b</sup> | AIS | Cargo category, navigation status, vessel draught (maximum current static), port of destination, estimated time of arrival (date, time), flag state |
| EVE<sup>c</sup> | SFI Transmitter | SFI Transmitter |

```{note}
Sentences used for backward compatibility (\*).
```

<sup>a</sup> IEC 61924-2. <br>
<sup>b</sup> IEC 61162-1. <br>
<sup>c</sup> IEC 61162-450.