The following abbreviations are used throughout the manual:
| Abbreviation | Definition |
| AIS | Automatic Identification System |
| ATA | Actual Time of Arrival |
| ATD | Actual Time of Departure |
| COSS | Committee on Safe Seas |
| CSD | Central Ship Database |
| CST | Used to identify a Coastal Station |
| EIS | European Index Server |
| ES | External Service |
| EMSA | European Maritime Safety Agency |
| ETA | Expected Time of Arrival |
| ETD | Expected Time of Departure |
| GIS | Geographic Information System |
| HTTP | Hypertext Transfer Protocol |
| HTTPS | Hypertext Transfer Protocol Secure |
| IMO | International Maritime Organization |
| MARSEC | Regulatory Committee for Maritime Security |
| MMSI | Maritime Mobile Service Identity |
| MRS | Mandatory Reporting System |
| MS | Member State |
| NCA | Used to identify a National Competent Authority |
| OSD | Operational Ship Database |
| POR | Used to identify a Port Authority |
| PSC | Used to identify a Port State Control |
| SAR | Search and Rescue |
| SSN | Safe Sea Net |
| SSN GI | Central Safe Sea Net Graphical Interface |
| UTC | Universal Time Coordinated |
| VTS | Vessel Traffic Services |
| XML | Extensible Markup Language |
| XML RG | XML Reference Guide |