BOTH INTERNATIONAL & INLAND The tow shown in illustration D024RR below is less than 200 meters in length and severely restricted in her ability to deviate from her course. Which dayshape(s) would be displayed by day from the vessel(s)?

Correct Answer: Option B — ball-diamond-ball on the towing vessel

Per COLREG Rule 27(b) and Annex I, a vessel towing and severely restricted in her ability to deviate from course displays the vertical shapes ball-diamond-ball. The diamond alone signifies the restriction, while the balls denote the towing operation when overall tow length exceeds 200 meters.