What must vessels of 26 feet or longer display in federally controlled waters?

Vessels that are 26 feet or longer operating in federally controlled waters are required to display a Garbage Disposal Placard. This requirement is in place to inform boaters about the regulations regarding the disposal of waste while on the water. The placard serves as a reminder to comply with environmental protections and helps to prevent pollution by discouraging the disposal of refuse directly into the water.

It's important to note that while speed limit signs, skier down flags, and warning bells are relevant in specific boating situations, they are not mandated for display by vessels solely based on their length when in federally controlled waters. Speed limits vary by location and are often dictated by local jurisdictions rather than a universal requirement for all vessels. Skier down flags are used during activities involving water skiing, and warning bells are typically associated with certain types of navigational rules; however, neither of these is a mandatory item that must be displayed by vessels of that size in all circumstances.