STCW - Minimum Safe Manning
Minimum safe-manning guidance per IMO Res. A.1047(27) - screening check against typical number of officers, ratings, and deck/engine department.
Officers
7pers
Ratings
11pers
Total crew (screening)
18pers
Formula, assumptions, and limits
Flag state issues actual Minimum Safe Manning Document. Chief officer + chief engineer need STCW II/2 + III/2 certificates for unlimited trade. Ratings: AB, OS, oiler etc.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Gross Tonnage | - | tonnage certificate | |
| Main engine power | kW | nameplate |