The rules governing waterskiing include other towing activities such as barefoot skiing, tubing, kneeboarding and parasailing. The Small Vessel Regulations require a spotter to be onboard, as well as the following:
Tugs may be towing barges or other vessels on a long tow-line astern. Often, the length of the tow is so great the tow-line hangs below the surface of the water and is nearly invisible. If a small craft were to strike the submerged tow-line, it could capsize and be run down by the barge.
Never pass between a tug and its tow and be alert for special lights displayed by vessels towing barges, other vessels or objects. The towing vessel is usually more visible than its tow. The tow’s navigation lights do not include masthead lights and are often much dimmer than those of the towing vessel.
In the case of a power-driven vessel towing another vessel from its stern, the towing vessel must exhibit the following:
In the case of a vessel being towed, it must exhibit the following: