Under sail and power
Inverted triangle
Anchored
Single ball
Not under command
Dual balls
Aground
3 balls
Restricted in ability
Dual balls with centre diamond
Constrained by Draft
Rectangle (cylinder)
Towing (More than 200m)
Diamond
Fishing (nets extended more than 150m)
Two inverted cones
Minesweeper
3 Balls (cross)