Inland or International? Pushing, pulling or pulling alongside?
Inland
Lights and Shapes
Rule 24
(c) A power driven vessel when pushing ahead or towing alongside, except as required by paragraphs (b) and (i) Covers composite units) of this rule, shall exhibit:
(iii) Two towing lights (yellow) in a vertical line.
(i) Notwithstanding paragraph (c), on the Western rivers (except below the Huey P. Long bridge on the Mississippi River) and on waters specified by the secretary, a power-driven vessel when pushing ahead or towing alongside, excepts as paragraph (b) applies, shall exhibit:
(i) sidelights; and
(ii) two towing lights (yellow)in a vertical line.
yellow over yellow is a inland towing fellow. this would be a inland towing vessel.
commercial vessel
At night the towing vessel should show two white lights on top of each other to indicate that it is towing.
yellow over yellow is a inland towing fellow. this would be a inland towing vessel.
Look for yellow lights.
Look for yellow lights.
Look for yellow lights.
White lights displayed above cabin
White lights displayed above cabin
A tugboat pulling a barge will display yellow lights when underway. Be careful not to go between the barge and the tugboat though!. There is a thin line connecting the two. A man once killed his whole family by hitting that line.
"Red or orange" skier down flag
Keep clear of the ferry or towing vessel.