What should commercial vessels display when towing or pushing a barge?

When a commercial vessel is towing or pushing a barge, it is required to display multiple yellow lights. This is necessary for visibility and to notify other boats of its presence, as the operational nature of such vessels can differ significantly from standard vessels. The use of yellow lights signals that the vessel is engaged in towing operations, providing critical information to other mariners about the nature of the movement and size of the vessel.

This requirement ensures that other boaters can assess the situation accurately and take necessary precautions, particularly in conditions where visibility may be reduced. By marking themselves with multiple yellow lights, these vessels can communicate their operational status effectively, helping to prevent collisions and ensure safety on the waterways.