What distance from the waterline must the registration number be affixed on a vessel?

The registration number on a vessel must be affixed above the waterline to ensure visibility and compliance with regulations. This placement is important because it allows law enforcement and other officials to easily identify the vessel when it is in the water. Proper positioning helps avoid potential obstruction by water and debris that could render the registration number unreadable if placed below the waterline. Additionally, displaying the number above the waterline ensures that the vessel meets the requirements for registration, which are designed to assist in tracking ownership and ensuring safety on the water.